Windows Analysis Report
voj5cnRxyy.exe

Overview

General Information

Sample name: voj5cnRxyy.exe
renamed because original name is a hash value
Original sample name: 3da0670c583abb45648e3f0c6ab5089e.exe
Analysis ID: 1481497
MD5: 3da0670c583abb45648e3f0c6ab5089e
SHA1: 5ac7e03ff02e77a5dcb094165759ad8fcec72b88
SHA256: 68021ca2722cb5eadaed2cd5b9c46903d01077dad0ebafdcef2de6d9e0664d67
Tags: exenjratRAT
Infos:

Detection

Njrat
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
Yara detected Njrat
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Contains functionality to log keystrokes (.Net Source)
Disables zone checking for all users
Machine Learning detection for sample
Modifies the windows firewall
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Abnormal high CPU Usage
Allocates memory with a write watch (potentially for evading sandboxes)
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)
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
NjRAT RedPacket Security describes NJRat as "a remote access trojan (RAT) has capabilities to log keystrokes, access the victim's camera, steal credentials stored in browsers, open a reverse shell, upload/download files, view the victim's desktop, perform process, file, and registry manipulations, and capabilities to let the attacker update, uninstall, restart, close, disconnect the RAT and rename its campaign ID. Through the Command & Control (CnC) server software, the attacker has capabilities to create and configure the malware to spread through USB drives."It is supposedly popular with actors in the Middle East. Similar to other RATs, many leaked builders may be backdoored.
  • AQUATIC PANDA
  • Earth Lusca
  • Operation C-Major
  • The Gorgon Group
 https://malpedia.caad.fkie.fraunhofer.de/details/win.njrat

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: voj5cnRxyy.exe Avira: detected
Found malware configuration
Source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp Malware Configuration Extractor: Njrat {"Host": "troia23.duckdns.org", "Port": "1177", "Version": "0.7d", "Campaign ID": "Lammer", "Install Name": "Trojan.exe", "Install Dir": "TEMP", "Network Seprator": "|'|'|"}
Multi AV Scanner detection for submitted file
Source: voj5cnRxyy.exe ReversingLabs: Detection: 97%
Yara detected Njrat
Source: Yara match File source: dump.pcap, type: PCAP
Source: Yara match File source: voj5cnRxyy.exe, type: SAMPLE
Source: Yara match File source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: voj5cnRxyy.exe PID: 6240, type: MEMORYSTR
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 99.7% probability
Machine Learning detection for sample
Source: voj5cnRxyy.exe Joe Sandbox ML: detected
Uses 32bit PE files
Source: voj5cnRxyy.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: C:\Users\user\Desktop\voj5cnRxyy.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dll Jump to behavior
Source: voj5cnRxyy.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Networking
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Uses dynamic DNS services
Source: unknown DNS query: name: troia23.duckdns.org
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49730 -> 18.229.140.246:1177
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: AMAZON-02US AMAZON-02US
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Code function: 0_2_00CBA09A recv, 0_2_00CBA09A
Source: global traffic DNS traffic detected: DNS query: troia23.duckdns.org

Key, Mouse, Clipboard, Microphone and Screen Capturing
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Contains functionality to log keystrokes (.Net Source)
Source: voj5cnRxyy.exe, kl.cs .Net Code: VKCodeToUnicode

E-Banking Fraud
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Yara detected Njrat
Source: Yara match File source: dump.pcap, type: PCAP
Source: Yara match File source: voj5cnRxyy.exe, type: SAMPLE
Source: Yara match File source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: voj5cnRxyy.exe PID: 6240, type: MEMORYSTR

System Summary
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Malicious sample detected (through community Yara rule)
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: Windows_Trojan_Njrat_30f3c220 Author: unknown
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: Detects malware from disclosed CN malware set Author: Florian Roth
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: Identify njRat Author: Brian Wallace @botnet_hunter
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: detect njRAT in memory Author: JPCERT/CC Incident Response Group
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: Detects NjRAT / Bladabindi Author: ditekSHen
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Njrat_30f3c220 Author: unknown
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: Detects malware from disclosed CN malware set Author: Florian Roth
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: Identify njRat Author: Brian Wallace @botnet_hunter
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: detect njRAT in memory Author: JPCERT/CC Incident Response Group
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: Detects NjRAT / Bladabindi Author: ditekSHen
Source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Windows_Trojan_Njrat_30f3c220 Author: unknown
Source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Identify njRat Author: Brian Wallace @botnet_hunter
Source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: detect njRAT in memory Author: JPCERT/CC Incident Response Group
Abnormal high CPU Usage
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process Stats: CPU usage > 49%
Detected potential crypto function
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Code function: 0_2_00EA22D8 0_2_00EA22D8
Sample file is different than original file name gathered from version info
Source: voj5cnRxyy.exe, 00000000.00000002.4117069363.0000000000A6E000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: OriginalFilenamemscorwks.dllT vs voj5cnRxyy.exe
Uses 32bit PE files
Source: voj5cnRxyy.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Yara signature match
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: Windows_Trojan_Njrat_30f3c220 reference_sample = 741a0f3954499c11f9eddc8df7c31e7c59ca41f1a7005646735b8b1d53438c1b, os = windows, severity = x86, creation_date = 2021-06-13, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Njrat, fingerprint = d15e131bca6beddcaecb20fffaff1784ad8a33a25e7ce90f7450d1a362908cc4, id = 30f3c220-b8dc-45a1-bcf0-027c2f76fa63, last_modified = 2021-10-04
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: CN_disclosed_20180208_c date = 2018-02-08, hash1 = 17475d25d40c877284e73890a9dd55fccedc6a5a071c351a8c342c8ef7f9cea7, author = Florian Roth, description = Detects malware from disclosed CN malware set, reference = https://twitter.com/cyberintproject/status/961714165550342146, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: njrat1 date = 2015-05-27, author = Brian Wallace @botnet_hunter, description = Identify njRat, author_email = bwall@ballastsecurity.net
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: Njrat hash1 = d5f63213ce11798879520b0e9b0d1b68d55f7727758ec8c120e370699a41379d, author = JPCERT/CC Incident Response Group, description = detect njRAT in memory, rule_usage = memory scan
Source: voj5cnRxyy.exe, type: SAMPLE Matched rule: MALWARE_Win_NjRAT author = ditekSHen, description = Detects NjRAT / Bladabindi
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Njrat_30f3c220 reference_sample = 741a0f3954499c11f9eddc8df7c31e7c59ca41f1a7005646735b8b1d53438c1b, os = windows, severity = x86, creation_date = 2021-06-13, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Njrat, fingerprint = d15e131bca6beddcaecb20fffaff1784ad8a33a25e7ce90f7450d1a362908cc4, id = 30f3c220-b8dc-45a1-bcf0-027c2f76fa63, last_modified = 2021-10-04
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: CN_disclosed_20180208_c date = 2018-02-08, hash1 = 17475d25d40c877284e73890a9dd55fccedc6a5a071c351a8c342c8ef7f9cea7, author = Florian Roth, description = Detects malware from disclosed CN malware set, reference = https://twitter.com/cyberintproject/status/961714165550342146, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: njrat1 date = 2015-05-27, author = Brian Wallace @botnet_hunter, description = Identify njRat, author_email = bwall@ballastsecurity.net
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: Njrat hash1 = d5f63213ce11798879520b0e9b0d1b68d55f7727758ec8c120e370699a41379d, author = JPCERT/CC Incident Response Group, description = detect njRAT in memory, rule_usage = memory scan
Source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE Matched rule: MALWARE_Win_NjRAT author = ditekSHen, description = Detects NjRAT / Bladabindi
Source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Windows_Trojan_Njrat_30f3c220 reference_sample = 741a0f3954499c11f9eddc8df7c31e7c59ca41f1a7005646735b8b1d53438c1b, os = windows, severity = x86, creation_date = 2021-06-13, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Njrat, fingerprint = d15e131bca6beddcaecb20fffaff1784ad8a33a25e7ce90f7450d1a362908cc4, id = 30f3c220-b8dc-45a1-bcf0-027c2f76fa63, last_modified = 2021-10-04
Source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: njrat1 date = 2015-05-27, author = Brian Wallace @botnet_hunter, description = Identify njRat, author_email = bwall@ballastsecurity.net
Source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY Matched rule: Njrat hash1 = d5f63213ce11798879520b0e9b0d1b68d55f7727758ec8c120e370699a41379d, author = JPCERT/CC Incident Response Group, description = detect njRAT in memory, rule_usage = memory scan
Source: classification engine Classification label: mal100.phis.troj.spyw.evad.winEXE@4/1@1/1
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Code function: 0_2_04D92662 AdjustTokenPrivileges, 0_2_04D92662
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Code function: 0_2_04D9262B AdjustTokenPrivileges, 0_2_04D9262B
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Mutant created: NULL
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Mutant created: \Sessions\1\BaseNamedObjects\bcb4c719d2ef301534574d61226c5663
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\.net clr networking
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:1856:120:WilError_03
Source: voj5cnRxyy.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: voj5cnRxyy.exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.79%
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: voj5cnRxyy.exe ReversingLabs: Detection: 97%
Source: unknown Process created: C:\Users\user\Desktop\voj5cnRxyy.exe "C:\Users\user\Desktop\voj5cnRxyy.exe"
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process created: C:\Windows\SysWOW64\netsh.exe netsh firewall add allowedprogram "C:\Users\user\Desktop\voj5cnRxyy.exe" "voj5cnRxyy.exe" ENABLE
Source: C:\Windows\SysWOW64\netsh.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process created: C:\Windows\SysWOW64\netsh.exe netsh firewall add allowedprogram "C:\Users\user\Desktop\voj5cnRxyy.exe" "voj5cnRxyy.exe" ENABLE Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: dnsapi.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: rasadhlp.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: fwpuclnt.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: wbemcomn.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: shfolder.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: avicap32.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: msvfw32.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: winmm.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Section loaded: winmm.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: ifmon.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: mprapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: rasmontr.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: rasapi32.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: fwpuclnt.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: rasman.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: mfc42u.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: rasman.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: authfwcfg.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: fwpolicyiomgr.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: firewallapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: dnsapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: fwbase.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: dhcpcmonitor.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: dot3cfg.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: dot3api.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: onex.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: eappcfg.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: ncrypt.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: eappprxy.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: ntasn1.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: fwcfg.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: hnetmon.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: netshell.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: nlaapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: netsetupapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: netiohlp.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: dhcpcsvc.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: winnsi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: nshhttp.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: httpapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: nshipsec.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: activeds.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: polstore.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: winipsec.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: adsldpc.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: nshwfp.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: cabinet.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: p2pnetsh.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: p2p.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: rpcnsh.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: whhelper.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: winhttp.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: wlancfg.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: wlanapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: wshelper.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: wevtapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: peerdistsh.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: wcmapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: rmclient.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: mobilenetworking.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: slc.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: sppc.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: gpapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: ktmw32.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: mprmsg.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Section loaded: msasn1.dll Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CF4CC405-E2C5-4DDD-B3CE-5E7582D8C9FA}\InprocServer32 Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe File opened: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorrc.dll Jump to behavior
Source: voj5cnRxyy.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: C:\Users\user\Desktop\voj5cnRxyy.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9672_none_d08f9da24428a513\MSVCR80.dll Jump to behavior
Source: voj5cnRxyy.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation
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.NET source code contains potential unpacker
Source: voj5cnRxyy.exe, OK.cs .Net Code: Plugin System.Reflection.Assembly.Load(byte[])
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Memory allocated: D80000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Memory allocated: 2AB0000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Memory allocated: DD0000 memory commit | memory reserve | memory write watch Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Window / User API: threadDelayed 434 Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Window / User API: threadDelayed 3802 Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Window / User API: threadDelayed 5223 Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Window / User API: foregroundWindowGot 1764 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\voj5cnRxyy.exe TID: 6232 Thread sleep count: 434 > 30 Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe TID: 6232 Thread sleep time: -434000s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe TID: 1360 Thread sleep count: 3802 > 30 Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe TID: 6232 Thread sleep count: 5223 > 30 Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe TID: 6232 Thread sleep time: -5223000s >= -30000s Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: voj5cnRxyy.exe, 00000000.00000002.4117069363.0000000000AE5000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dllW
Source: netsh.exe, 00000001.00000002.1731351108.000000000102A000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll[
Source: voj5cnRxyy.exe, 00000000.00000002.4117069363.0000000000AE5000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAWJ
Enables debug privileges
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.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: voj5cnRxyy.exe, kl.cs Reference to suspicious API methods: MapVirtualKey(a, 0u)
Source: voj5cnRxyy.exe, kl.cs Reference to suspicious API methods: GetAsyncKeyState(num2)
Source: voj5cnRxyy.exe, OK.cs Reference to suspicious API methods: capGetDriverDescriptionA(wDriver, ref lpszName, 100, ref lpszVer, 100)
Source: voj5cnRxyy.exe, 00000000.00000002.4118267766.0000000002DDE000.00000004.00000800.00020000.00000000.sdmp, voj5cnRxyy.exe, 00000000.00000002.4118267766.0000000002DDA000.00000004.00000800.00020000.00000000.sdmp, voj5cnRxyy.exe, 00000000.00000002.4118267766.0000000002B2D000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Program Manager
Source: voj5cnRxyy.exe, 00000000.00000002.4118267766.0000000002DDE000.00000004.00000800.00020000.00000000.sdmp, voj5cnRxyy.exe, 00000000.00000002.4118267766.0000000002DDA000.00000004.00000800.00020000.00000000.sdmp, voj5cnRxyy.exe, 00000000.00000002.4118267766.0000000002B2D000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: Program Manager@9
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\netsh.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Lowering of HIPS / PFW / Operating System Security Settings
barindex
Disables zone checking for all users
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Registry value created: HKEY_CURRENT_USER\Environment SEE_MASK_NOZONECHECKS Jump to behavior
Modifies the windows firewall
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process created: C:\Windows\SysWOW64\netsh.exe netsh firewall add allowedprogram "C:\Users\user\Desktop\voj5cnRxyy.exe" "voj5cnRxyy.exe" ENABLE
Uses netsh to modify the Windows network and firewall settings
Source: C:\Users\user\Desktop\voj5cnRxyy.exe Process created: C:\Windows\SysWOW64\netsh.exe netsh firewall add allowedprogram "C:\Users\user\Desktop\voj5cnRxyy.exe" "voj5cnRxyy.exe" ENABLE

Stealing of Sensitive Information
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Yara detected Njrat
Source: Yara match File source: dump.pcap, type: PCAP
Source: Yara match File source: voj5cnRxyy.exe, type: SAMPLE
Source: Yara match File source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: voj5cnRxyy.exe PID: 6240, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Njrat
Source: Yara match File source: dump.pcap, type: PCAP
Source: Yara match File source: voj5cnRxyy.exe, type: SAMPLE
Source: Yara match File source: 0.0.voj5cnRxyy.exe.3d0000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000000.1660713867.00000000003D2000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: voj5cnRxyy.exe PID: 6240, 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: 1481497 Sample: voj5cnRxyy.exe Startdate: 25/07/2024 Architecture: WINDOWS Score: 100 16 troia23.duckdns.org 2->16 20 Found malware configuration 2->20 22 Malicious sample detected (through community Yara rule) 2->22 24 Antivirus / Scanner detection for submitted sample 2->24 28 7 other signatures 2->28 8 voj5cnRxyy.exe 3 4 2->8         started        signatures3 26 Uses dynamic DNS services 16->26 process4 dnsIp5 18 troia23.duckdns.org 18.229.140.246, 1177, 49730 AMAZON-02US United States 8->18 30 Disables zone checking for all users 8->30 32 Uses netsh to modify the Windows network and firewall settings 8->32 34 Modifies the windows firewall 8->34 12 netsh.exe 2 8->12         started        signatures6 process7 process8 14 conhost.exe 12->14         started       
  • 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
18.229.140.246
 troia23.duckdns.org United States
16509 AMAZON-02US true

Contacted Domains

Name IP Active
troia23.duckdns.org 18.229.140.246 true