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Windows
Analysis Report
Nowe zam#U00f3wienie - 0072291855.pdf (243KB).com.exe
Overview
General Information
Sample name: | Nowe zam#U00f3wienie - 0072291855.pdf (243KB).com.exerenamed because original name is a hash value |
Original sample name: | Nowe zamwienie - 0072291855.pdf (243KB).com.exe |
Analysis ID: | 1567376 |
MD5: | 96493f8a0252e4e492de924d83db5a8a |
SHA1: | 09dad264469e86a858f0183ed6e5bfe2d53781f4 |
SHA256: | e14c8cd3613b5d94cd5ca407fd329b61954add690c779edbd41b362d035f7879 |
Tags: | comexeuser-abuse_ch |
Infos: | |
Detection
Quasar
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Antivirus detection for dropped file
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Yara detected AntiVM3
Yara detected Quasar RAT
.NET source code contains potential unpacker
AI detected suspicious sample
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Abnormal high CPU Usage
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
Drops PE files
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
PE / OLE file has an invalid certificate
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
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Add Scheduled Task Parent
Sigma detected: Suspicious Schtasks From Env Var Folder
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- Nowe zam#U00f3wienie - 0072291855.pdf (243KB).com.exe (PID: 7756 cmdline:
"C:\Users\ user\Deskt op\Nowe za m#U00f3wie nie - 0072 291855.pdf (243KB).c om.exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A) - powershell.exe (PID: 7956 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\Des ktop\Nowe zam#U00f3w ienie - 00 72291855.p df (243KB) .com.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 7964 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 8020 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\EPhabVg Xw.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 8060 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - schtasks.exe (PID: 8068 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\EPha bVgXw" /XM L "C:\User s\user\App Data\Local \Temp\tmp8 70B.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 8088 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - Nowe zam#U00f3wienie - 0072291855.pdf (243KB).com.exe (PID: 7180 cmdline:
"C:\Users\ user\Deskt op\Nowe za m#U00f3wie nie - 0072 291855.pdf (243KB).c om.exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A) - Nowe zam#U00f3wienie - 0072291855.pdf (243KB).com.exe (PID: 7248 cmdline:
"C:\Users\ user\Deskt op\Nowe za m#U00f3wie nie - 0072 291855.pdf (243KB).c om.exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A) - Nowe zam#U00f3wienie - 0072291855.pdf (243KB).com.exe (PID: 7268 cmdline:
"C:\Users\ user\Deskt op\Nowe za m#U00f3wie nie - 0072 291855.pdf (243KB).c om.exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A) - schtasks.exe (PID: 6772 cmdline:
"schtasks" /create / tn "Outloo ks" /sc ON LOGON /tr "C:\Users\ user\AppDa ta\Roaming \WindowsUp dates\outl ooks.exe" /rl HIGHES T /f MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 4612 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - outlooks.exe (PID: 2596 cmdline:
"C:\Users\ user\AppDa ta\Roaming \WindowsUp dates\outl ooks.exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A) - powershell.exe (PID: 2988 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\Windows Updates\ou tlooks.exe " MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 1080 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 5652 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\EPhabVg Xw.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 3556 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - schtasks.exe (PID: 3892 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\EPha bVgXw" /XM L "C:\User s\user\App Data\Local \Temp\tmpA 8BC.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 6084 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - outlooks.exe (PID: 2968 cmdline:
"C:\Users\ user\AppDa ta\Roaming \WindowsUp dates\outl ooks.exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A) - schtasks.exe (PID: 3248 cmdline:
"schtasks" /create / tn "Outloo ks" /sc ON LOGON /tr "C:\Users\ user\AppDa ta\Roaming \WindowsUp dates\outl ooks.exe" /rl HIGHES T /f MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 3476 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
- EPhabVgXw.exe (PID: 5332 cmdline:
C:\Users\u ser\AppDat a\Roaming\ EPhabVgXw. exe MD5: 96493F8A0252E4E492DE924D83DB5A8A) - schtasks.exe (PID: 4844 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\EPha bVgXw" /XM L "C:\User s\user\App Data\Local \Temp\tmpD A5B.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 4080 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - EPhabVgXw.exe (PID: 8132 cmdline:
"C:\Users\ user\AppDa ta\Roaming \EPhabVgXw .exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A)
- outlooks.exe (PID: 6220 cmdline:
C:\Users\u ser\AppDat a\Roaming\ WindowsUpd ates\outlo oks.exe MD5: 96493F8A0252E4E492DE924D83DB5A8A) - powershell.exe (PID: 4464 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\Windows Updates\ou tlooks.exe " MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 7464 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 7800 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\EPhabVg Xw.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 3776 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - schtasks.exe (PID: 1624 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\EPha bVgXw" /XM L "C:\User s\user\App Data\Local \Temp\tmpD CBC.tmp" MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 6772 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - outlooks.exe (PID: 7196 cmdline:
"C:\Users\ user\AppDa ta\Roaming \WindowsUp dates\outl ooks.exe" MD5: 96493F8A0252E4E492DE924D83DB5A8A)
- cleanup
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. |
{"Version": "1.4.1", "Host:Port": "Zyg.ydns.eu:5829;Opy.ydns.eu:5829;", "SubDirectory": "WindowsUpdates", "InstallName": "outlooks.exe", "MutexName": "9c58b2ba-07eb-415a-b48b-21bbb68d32285e", "StartupKey": "Outlooks", "Tag": "JEKWU", "LogDirectoryName": "Logs", "ServerSignature": "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", "ServerCertificate": "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"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
Click to see the 13 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
MAL_QuasarRAT_May19_1 | Detects QuasarRAT malware | Florian Roth |
| |
INDICATOR_SUSPICIOUS_GENInfoStealer | Detects executables containing common artifcats observed in infostealers | ditekSHen |
| |
MALWARE_Win_QuasarStealer | Detects Quasar infostealer | ditekshen |
| |
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
Click to see the 18 entries |
System Summary |
---|
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Persistence and Installation Behavior |
---|
Source: | Author: Joe Security: |
⊘No Suricata rule has matched
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AV Detection |
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Source: | Avira: |
Source: | Avira URL Cloud: |
Source: | Avira: | ||
Source: | Avira: |
Source: | Malware Configuration Extractor: |