Windows Analysis Report
V9fubyadY6.exe

Overview

General Information

Sample name: V9fubyadY6.exe
renamed because original name is a hash value
Original sample name: 4e3692a35a3a1ae4e4b1613f9042e4d3.exe
Analysis ID: 1544043
MD5: 4e3692a35a3a1ae4e4b1613f9042e4d3
SHA1: 81e4b2203e11bd642bca309a76e43c8d8fbdcaac
SHA256: 3d64999908580361b2426500404c1198256cd6852c630f724525a3ea6a0afa56
Tags: exeQuasarRATRATuser-abuse_ch
Infos:

Detection

Quasar
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Quasar RAT
.NET source code references suspicious native API functions
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Writes to foreign memory regions
Yara detected Generic Downloader
Allocates memory with a write watch (potentially for evading sandboxes)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May check the online IP address of the machine
May sleep (evasive loops) to hinder dynamic analysis
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses a known web browser user agent for HTTP communication
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
Quasar RAT, QuasarRAT Quasar RAT is a malware family written in .NET which is used by a variety of attackers. The malware is fully functional and open source, and is often packed to make analysis of the source more difficult.
  • APT33
  • Dropping Elephant
  • Stone Panda
  • The Gorgon Group
 https://malpedia.caad.fkie.fraunhofer.de/details/win.quasar_rat

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: V9fubyadY6.exe Avira: detected
Found malware configuration
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack Malware Configuration Extractor: Quasar {"Version": "1.4.1", "Host:Port": "164.90.236.65:5520;", "SubDirectory": "SubDir", "InstallName": "Client.exe", "MutexName": "e21de365-4ad7-41b0-9c44-b9d3fb6bfbb5", "StartupKey": "Quasar Client Startup", "LogDirectoryName": "Logs", "ServerSignature": "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", "ServerCertificate": "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"}
Multi AV Scanner detection for submitted file
Source: V9fubyadY6.exe ReversingLabs: Detection: 65%
Yara detected Quasar RAT
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000003.00000002.2931138812.0000000000720000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002F36000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685423043.0000000002751000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002CA1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: V9fubyadY6.exe PID: 7468, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 7508, type: MEMORYSTR
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 100.0% probability
Machine Learning detection for sample
Source: V9fubyadY6.exe Joe Sandbox ML: detected
Uses 32bit PE files
Source: V9fubyadY6.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: unknown HTTPS traffic detected: 195.201.57.90:443 -> 192.168.2.4:49732 version: TLS 1.2
Source: V9fubyadY6.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Networking
barindex
Suricata IDS alerts for network traffic
Source: Network traffic Suricata IDS: 2027619 - Severity 1 - ET MALWARE Observed Malicious SSL Cert (Quasar CnC) : 164.90.236.65:5520 -> 192.168.2.4:49730
Source: Network traffic Suricata IDS: 2035595 - Severity 1 - ET MALWARE Generic AsyncRAT Style SSL Cert : 164.90.236.65:5520 -> 192.168.2.4:49730
C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: 164.90.236.65
Yara detected Generic Downloader
Source: Yara match File source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49730 -> 164.90.236.65:5520
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 195.201.57.90 195.201.57.90
Source: Joe Sandbox View IP Address: 195.201.57.90 195.201.57.90
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: DIGITALOCEAN-ASNUS DIGITALOCEAN-ASNUS
JA3 SSL client fingerprint seen in connection with other malware
Source: Joe Sandbox View JA3 fingerprint: 3b5074b1b5d032e5620f69f9f700ff0e
May check the online IP address of the machine
Source: unknown DNS query: name: ipwho.is
Uses a known web browser user agent for HTTP communication
Source: global traffic HTTP traffic detected: GET / HTTP/1.1User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0Host: ipwho.isConnection: Keep-Alive
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown TCP traffic detected without corresponding DNS query: 164.90.236.65
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic HTTP traffic detected: GET / HTTP/1.1User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0Host: ipwho.isConnection: Keep-Alive
Source: global traffic DNS traffic detected: DNS query: ipwho.is
Source: RegAsm.exe, 00000003.00000002.2934021204.0000000000F81000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en&c
Source: RegAsm.exe, 00000003.00000002.2934675940.0000000001012000.00000004.00000020.00020000.00000000.sdmp, 77EC63BDA74BD0D0E0426DC8F80085060.3.dr String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
Source: RegAsm.exe, 00000003.00000002.2935399171.0000000002EEA000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://ipwho.is
Source: RegAsm.exe, 00000003.00000002.2935399171.0000000002EEA000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://ipwho.isd
Source: RegAsm.exe, 00000003.00000002.2935399171.0000000002F36000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://schemas.datacontract.org/2004/07/
Source: RegAsm.exe, 00000003.00000002.2935399171.0000000002F36000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://schemas.datacontract.org/2004/07/d
Source: RegAsm.exe, 00000003.00000002.2935399171.0000000002CA1000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
Source: V9fubyadY6.exe, 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, V9fubyadY6.exe, 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp String found in binary or memory: https://api.ipify.org/
Source: RegAsm.exe, 00000003.00000002.2935399171.0000000002ED7000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://ipwho.is
Source: V9fubyadY6.exe, 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, V9fubyadY6.exe, 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2935399171.0000000002ED7000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp String found in binary or memory: https://ipwho.is/
Source: V9fubyadY6.exe, 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, V9fubyadY6.exe, 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp String found in binary or memory: https://stackoverflow.com/q/11564914/23354;
Source: V9fubyadY6.exe, 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, V9fubyadY6.exe, 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2935399171.0000000002D27000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp String found in binary or memory: https://stackoverflow.com/q/14436606/23354
Source: V9fubyadY6.exe, 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, V9fubyadY6.exe, 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp String found in binary or memory: https://stackoverflow.com/q/2152978/23354sCannot
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49732
Source: unknown Network traffic detected: HTTP traffic on port 49732 -> 443
Source: unknown HTTPS traffic detected: 195.201.57.90:443 -> 192.168.2.4:49732 version: TLS 1.2

E-Banking Fraud
barindex
Yara detected Quasar RAT
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000003.00000002.2931138812.0000000000720000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002F36000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685423043.0000000002751000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002CA1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: V9fubyadY6.exe PID: 7468, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 7508, type: MEMORYSTR

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE Matched rule: Detects QuasarRAT malware Author: Florian Roth
Source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE Matched rule: Detects executables containing common artifcats observed in infostealers Author: ditekSHen
Source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE Matched rule: Detects Quasar infostealer Author: ditekshen
Source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Detects QuasarRAT malware Author: Florian Roth
Source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Detects executables containing common artifcats observed in infostealers Author: ditekSHen
Source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Detects Quasar infostealer Author: ditekshen
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE Matched rule: Detects QuasarRAT malware Author: Florian Roth
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE Matched rule: Detects executables containing common artifcats observed in infostealers Author: ditekSHen
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE Matched rule: Detects Quasar infostealer Author: ditekshen
Source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE Matched rule: Detects QuasarRAT malware Author: Florian Roth
Source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE Matched rule: Detects executables containing common artifcats observed in infostealers Author: ditekSHen
Source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE Matched rule: Detects Quasar infostealer Author: ditekshen
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE Matched rule: Detects QuasarRAT malware Author: Florian Roth
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE Matched rule: Detects executables containing common artifcats observed in infostealers Author: ditekSHen
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE Matched rule: Detects Quasar infostealer Author: ditekshen
Detected potential crypto function
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 3_2_02C8F03C 3_2_02C8F03C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 3_2_0796A620 3_2_0796A620
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Code function: 3_2_07966D88 3_2_07966D88
Sample file is different than original file name gathered from version info
Source: V9fubyadY6.exe, 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: OriginalFilenameClient.exe. vs V9fubyadY6.exe
Source: V9fubyadY6.exe, 00000000.00000002.1684271354.0000000000A3E000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: OriginalFilenameclr.dllT vs V9fubyadY6.exe
Source: V9fubyadY6.exe, 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: OriginalFilenameClient.exe. vs V9fubyadY6.exe
Source: V9fubyadY6.exe, 00000000.00000002.1685423043.0000000002751000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: OriginalFilenameClient.exe. vs V9fubyadY6.exe
Source: V9fubyadY6.exe Binary or memory string: OriginalFilenamemagnify.exe4 vs V9fubyadY6.exe
Uses 32bit PE files
Source: V9fubyadY6.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Yara signature match
Source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE Matched rule: MAL_QuasarRAT_May19_1 date = 2019-05-27, hash1 = 0644e561225ab696a97ba9a77583dcaab4c26ef0379078c65f9ade684406eded, author = Florian Roth, description = Detects QuasarRAT malware, reference = https://blog.ensilo.com/uncovering-new-activity-by-apt10
Source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_GENInfoStealer author = ditekSHen, description = Detects executables containing common artifcats observed in infostealers
Source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_QuasarStealer author = ditekshen, description = Detects Quasar infostealer, clamav_sig = MALWARE.Win.Trojan.QuasarStealer
Source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: MAL_QuasarRAT_May19_1 date = 2019-05-27, hash1 = 0644e561225ab696a97ba9a77583dcaab4c26ef0379078c65f9ade684406eded, author = Florian Roth, description = Detects QuasarRAT malware, reference = https://blog.ensilo.com/uncovering-new-activity-by-apt10
Source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_GENInfoStealer author = ditekSHen, description = Detects executables containing common artifcats observed in infostealers
Source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_QuasarStealer author = ditekshen, description = Detects Quasar infostealer, clamav_sig = MALWARE.Win.Trojan.QuasarStealer
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE Matched rule: MAL_QuasarRAT_May19_1 date = 2019-05-27, hash1 = 0644e561225ab696a97ba9a77583dcaab4c26ef0379078c65f9ade684406eded, author = Florian Roth, description = Detects QuasarRAT malware, reference = https://blog.ensilo.com/uncovering-new-activity-by-apt10
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_GENInfoStealer author = ditekSHen, description = Detects executables containing common artifcats observed in infostealers
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_QuasarStealer author = ditekshen, description = Detects Quasar infostealer, clamav_sig = MALWARE.Win.Trojan.QuasarStealer
Source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE Matched rule: MAL_QuasarRAT_May19_1 date = 2019-05-27, hash1 = 0644e561225ab696a97ba9a77583dcaab4c26ef0379078c65f9ade684406eded, author = Florian Roth, description = Detects QuasarRAT malware, reference = https://blog.ensilo.com/uncovering-new-activity-by-apt10
Source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_GENInfoStealer author = ditekSHen, description = Detects executables containing common artifcats observed in infostealers
Source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_QuasarStealer author = ditekshen, description = Detects Quasar infostealer, clamav_sig = MALWARE.Win.Trojan.QuasarStealer
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE Matched rule: MAL_QuasarRAT_May19_1 date = 2019-05-27, hash1 = 0644e561225ab696a97ba9a77583dcaab4c26ef0379078c65f9ade684406eded, author = Florian Roth, description = Detects QuasarRAT malware, reference = https://blog.ensilo.com/uncovering-new-activity-by-apt10
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_GENInfoStealer author = ditekSHen, description = Detects executables containing common artifcats observed in infostealers
Source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_QuasarStealer author = ditekshen, description = Detects Quasar infostealer, clamav_sig = MALWARE.Win.Trojan.QuasarStealer
Source: V9fubyadY6.exe, by-unknown-------------------------.cs Base64 encoded string: 'QzpcV2luZG93c1xNaWNyb3NvZnQuTkVUXEZyYW1ld29ya1x2NC4wLjMwMzE5XFJlZ0FzbS5leGU='
Source: classification engine Classification label: mal100.troj.evad.winEXE@7/3@1/2
Source: C:\Users\user\Desktop\V9fubyadY6.exe File created: C:\Users\user\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\V9fubyadY6.exe.log Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Mutant created: NULL
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\e21de365-4ad7-41b0-9c44-b9d3fb6bfbb5
Source: V9fubyadY6.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: V9fubyadY6.exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 50.01%
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Users\user\Desktop\V9fubyadY6.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: V9fubyadY6.exe ReversingLabs: Detection: 65%
Source: unknown Process created: C:\Users\user\Desktop\V9fubyadY6.exe "C:\Users\user\Desktop\V9fubyadY6.exe"
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: aclayers.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: mpr.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: sfc.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: sfc_os.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: version.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: msasn1.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: secur32.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: schannel.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: mskeyprotect.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: ntasn1.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: ncrypt.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: ncryptsslp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: gpapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: cryptnet.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: winnsi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: winhttp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: ondemandconnroutehelper.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: dhcpcsvc6.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: dhcpcsvc.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: webio.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: dnsapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: rasadhlp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: fwpuclnt.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: cabinet.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: rasapi32.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: rasman.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: rtutils.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: ondemandconnroutehelper.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: wbemcomn.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CF4CC405-E2C5-4DDD-B3CE-5E7582D8C9FA}\InprocServer32 Jump to behavior
Source: V9fubyadY6.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: V9fubyadY6.exe Static PE information: Virtual size of .text is bigger than: 0x100000
Source: V9fubyadY6.exe Static file information: File size 3310080 > 1048576
Source: V9fubyadY6.exe Static PE information: Raw size of .text is bigger than: 0x100000 < 0x327800
Source: V9fubyadY6.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Hooking and other Techniques for Hiding and Protection
barindex
Hides that the sample has been downloaded from the Internet (zone.identifier)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe:Zone.Identifier read attributes | delete Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory allocated: 2530000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory allocated: 2750000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory allocated: 25A0000 memory reserve | memory write watch Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Memory allocated: 2B30000 memory reserve | memory write watch Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Memory allocated: 2CA0000 memory reserve | memory write watch Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Memory allocated: 4CA0000 memory reserve | memory write watch Jump to behavior
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\V9fubyadY6.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Window / User API: threadDelayed 691 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Window / User API: threadDelayed 406 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\V9fubyadY6.exe TID: 7488 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe TID: 7592 Thread sleep time: -30000s >= -30000s Jump to behavior
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_BaseBoard
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_BIOS
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe WMI Queries: IWbemServices::ExecQuery - root\cimv2 : SELECT * FROM Win32_Processor
Source: C:\Users\user\Desktop\V9fubyadY6.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: RegAsm.exe, 00000003.00000002.2942848671.0000000005609000.00000004.00000020.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2942848671.00000000055C0000.00000004.00000020.00020000.00000000.sdmp, RegAsm.exe, 00000003.00000002.2942848671.0000000005540000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process information queried: ProcessInformation Jump to behavior
Enables debug privileges
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process token adjusted: Debug Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
barindex
.NET source code references suspicious native API functions
Source: V9fubyadY6.exe, by-unknown-------------------------.cs Reference to suspicious API methods: ReadProcessMemory(by_002Dunknown_FFFD_D83E_DD70_D83E_DD29_D83D_DD29_D83D_DC98_FFFD_FE0F_FFFD_FFFD_D83E_DE1C_FFFD_FFFD_FFFD_FFFD_200D_FFFD_FFFD_FFFD_D83D_DE35.ProcessHandle, num3 + 4 + 4, ref by_002Dunknown_FE0F_FFFD_FFFD_FFFD_FFFD_D83D_DCAB_FFFD_200D_FE0F_FFFD_FFFD_FFFD_D83D_DD14_FFFD_D83D_DCAB_FFFD_D83E_DFF3_FFFD_FFFD_FFFD_FFFD, 4, ref by_002Dunknown_D83D_DE3F_FFFD_D83E_DDE8_FE0F_D83D_DD29_FFFD_FE0F_FFFD_FE0F_FFFD_FFFD_FFFD_FFFD_D83E_DE35_FFFD_D83C_DCA3_FFFD_200D_FFFD_FFFD)
Source: V9fubyadY6.exe, by-unknown-------------------------.cs Reference to suspicious API methods: VirtualAllocEx(by_002Dunknown_FFFD_D83E_DD70_D83E_DD29_D83D_DD29_D83D_DC98_FFFD_FE0F_FFFD_FFFD_D83E_DE1C_FFFD_FFFD_FFFD_FFFD_200D_FFFD_FFFD_FFFD_D83D_DE35.ProcessHandle, num2, num4, 12288, 64)
Source: V9fubyadY6.exe, by-unknown-------------------------.cs Reference to suspicious API methods: WriteProcessMemory(by_002Dunknown_FFFD_D83E_DD70_D83E_DD29_D83D_DD29_D83D_DC98_FFFD_FE0F_FFFD_FFFD_D83E_DE1C_FFFD_FFFD_FFFD_FFFD_200D_FFFD_FFFD_FFFD_D83D_DE35.ProcessHandle, num6, by_002Dunknown_FFFD_FE0F_FFFD_FFFD_FFFD_FE0F_FFFD_200D_FFFD_D83E_DD15_FFFD_26A7_FFFD_FFFD_FFFD_D83E_DE35_FFFD_FFFD_FE0F_FFFD_FFFD_FFFD_2642, num5, ref by_002Dunknown_D83D_DE3F_FFFD_D83E_DDE8_FE0F_D83D_DD29_FFFD_FE0F_FFFD_FE0F_FFFD_FFFD_FFFD_FFFD_D83E_DE35_FFFD_D83C_DCA3_FFFD_200D_FFFD_FFFD)
Allocates memory in foreign processes
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory allocated: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 protect: page execute and read and write Jump to behavior
Injects a PE file into a foreign processes
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 value starts with: 4D5A Jump to behavior
Writes to foreign memory regions
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 400000 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 402000 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 720000 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: 722000 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe base: D46008 Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32 Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe #system32 Jump to behavior
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\V9fubyadY6.exe Queries volume information: C:\Users\user\Desktop\V9fubyadY6.exe VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.ServiceModel\v4.0_4.0.0.0__b77a5c561934e089\System.ServiceModel.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Security\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Security.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Data.SqlXml\v4.0_4.0.0.0__b77a5c561934e089\System.Data.SqlXml.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\SMDiagnostics\v4.0_4.0.0.0__b77a5c561934e089\SMDiagnostics.dll VolumeInformation Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.ServiceModel.Internals\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Internals.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\V9fubyadY6.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information
barindex
Yara detected Quasar RAT
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000003.00000002.2931138812.0000000000720000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002F36000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685423043.0000000002751000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002CA1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: V9fubyadY6.exe PID: 7468, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 7508, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Quasar RAT
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 3.2.RegAsm.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3d901d0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.V9fubyadY6.exe.3a72ba0.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000003.00000002.2931138812.0000000000720000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002F36000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685423043.0000000002751000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2935399171.0000000002CA1000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000003.00000002.2931138812.0000000000402000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000003754000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1685559780.0000000004154000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: V9fubyadY6.exe PID: 7468, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: RegAsm.exe PID: 7508, type: MEMORYSTR
windows-stand
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1544043 Sample: V9fubyadY6.exe Startdate: 28/10/2024 Architecture: WINDOWS Score: 100 21 ipwho.is 2->21 27 Suricata IDS alerts for network traffic 2->27 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 8 other signatures 2->33 7 V9fubyadY6.exe 3 2->7         started        signatures3 process4 file5 19 C:\Users\user\AppData\...\V9fubyadY6.exe.log, CSV 7->19 dropped 35 Writes to foreign memory regions 7->35 37 Allocates memory in foreign processes 7->37 39 Injects a PE file into a foreign processes 7->39 11 RegAsm.exe 15 2 7->11         started        15 RegAsm.exe 7->15         started        17 RegAsm.exe 7->17         started        signatures6 process7 dnsIp8 23 164.90.236.65, 49730, 5520 DIGITALOCEAN-ASNUS United States 11->23 25 ipwho.is 195.201.57.90, 443, 49732 HETZNER-ASDE Germany 11->25 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->41 signatures9
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
164.90.236.65
 unknown United States
14061 DIGITALOCEAN-ASNUS true
195.201.57.90
 ipwho.is Germany
24940 HETZNER-ASDE false

Contacted Domains

Name IP Active
ipwho.is 195.201.57.90 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
164.90.236.65 true
    		unknown
    https://ipwho.is/ false
      		unknown