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Windows
Analysis Report
Dd5DwDCHJD.exe
Overview
General Information
Sample name: | Dd5DwDCHJD.exerenamed because original name is a hash value |
Original sample name: | 6d6c9c719e2f757442374af378c343a7.exe |
Analysis ID: | 1582962 |
MD5: | 6d6c9c719e2f757442374af378c343a7 |
SHA1: | a58a2aa6dae2dbdf64472614985cac2adce4eddb |
SHA256: | 444c97f6db0626069965d9e4ddb4bf315326954c51b123b3dc7d64084e7fb646 |
Tags: | exeQuasarRATRATuser-abuse_ch |
Infos: | |
Detection
Quasar
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
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: Fodhelper UAC Bypass
Suricata IDS alerts for network traffic
UAC bypass detected (Fodhelper)
Yara detected Quasar RAT
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Sigma detected: Bypass UAC via Fodhelper.exe
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Uses cmd line tools excessively to alter registry or file data
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)
HTTP GET or POST without a user agent
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
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: Suspicious Add Scheduled Task Parent
Sigma detected: Suspicious Reg Add Open Command
Sigma detected: Suspicious Schtasks From Env Var Folder
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Uses reg.exe to modify the Windows registry
Yara signature match
Classification
- System is w10x64
- Dd5DwDCHJD.exe (PID: 7324 cmdline:
"C:\Users\ user\Deskt op\Dd5DwDC HJD.exe" MD5: 6D6C9C719E2F757442374AF378C343A7) - schtasks.exe (PID: 7360 cmdline:
"schtasks" /create / tn "$77-cm d" /sc ONL OGON /tr " C:\Users\u ser\AppDat a\Roaming\ $77-cmd\Cl ient.exe" /rl HIGHES T /f MD5: 76CD6626DD8834BD4A42E6A565104DC2) - conhost.exe (PID: 7368 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - cmd.exe (PID: 7480 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\User s\user\App Data\Roami ng\$77-cmd \UACBypass 1.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 7488 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - reg.exe (PID: 7528 cmdline:
reg add "H KCU\Softwa re\Classes \ms-settin gs\shell\o pen\comman d" /ve /d "C:\Users\ user\AppDa ta\Roaming \$77-cmd\C lient.exe" /f MD5: 227F63E1D9008B36BDBCC4B397780BE4) - reg.exe (PID: 7544 cmdline:
reg add "H KCU\Softwa re\Classes \ms-settin gs\shell\o pen\comman d" /v "Del egateExecu te" /f MD5: 227F63E1D9008B36BDBCC4B397780BE4) - fodhelper.exe (PID: 7560 cmdline:
fodhelper. exe MD5: 85018BE1FD913656BC9FF541F017EACD) - Client.exe (PID: 7616 cmdline:
"C:\Users\ user\AppDa ta\Roaming \$77-cmd\C lient.exe" MD5: 6D6C9C719E2F757442374AF378C343A7) - timeout.exe (PID: 7576 cmdline:
timeout /t 2 /nobrea k MD5: 100065E21CFBBDE57CBA2838921F84D6) - reg.exe (PID: 7728 cmdline:
reg delete "HKCU\Sof tware\Clas ses\ms-set tings\shel l\open\com mand" /f MD5: 227F63E1D9008B36BDBCC4B397780BE4) - cmd.exe (PID: 7744 cmdline:
cmd /c del "C:\Users \user\AppD ata\Roamin g\$77-cmd\ UACBypass1 .bat" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - cmd.exe (PID: 7760 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\User s\user\App Data\Roami ng\$77-cmd \UACBypass 2.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 7768 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - reg.exe (PID: 7856 cmdline:
reg delete "HKCU\Sof tware\Clas ses\ms-set tings\shel l\open\com mand" /f MD5: 227F63E1D9008B36BDBCC4B397780BE4) - reg.exe (PID: 7892 cmdline:
reg add "H KCU\Softwa re\Classes \ms-settin gs\shell\o pen\comman d" /ve /d "C:\Users\ user\AppDa ta\Roaming \$77-cmd\I nstall.exe " /f MD5: 227F63E1D9008B36BDBCC4B397780BE4) - reg.exe (PID: 7908 cmdline:
reg add "H KCU\Softwa re\Classes \ms-settin gs\shell\o pen\comman d" /v "Del egateExecu te" /f MD5: 227F63E1D9008B36BDBCC4B397780BE4) - fodhelper.exe (PID: 7932 cmdline:
fodhelper. exe MD5: 85018BE1FD913656BC9FF541F017EACD) - timeout.exe (PID: 7948 cmdline:
timeout /t 2 /nobrea k MD5: 100065E21CFBBDE57CBA2838921F84D6) - reg.exe (PID: 8024 cmdline:
reg delete "HKCU\Sof tware\Clas ses\ms-set tings\shel l\open\com mand" /f MD5: 227F63E1D9008B36BDBCC4B397780BE4) - cmd.exe (PID: 8040 cmdline:
cmd /c del "C:\Users \user\AppD ata\Roamin g\$77-cmd\ UACBypass2 .bat" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - cmd.exe (PID: 7776 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\User s\user\App Data\Roami ng\$77-cmd \Melt.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 7804 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - timeout.exe (PID: 7868 cmdline:
timeout /t 5 /nobrea k MD5: 100065E21CFBBDE57CBA2838921F84D6)
- Client.exe (PID: 7452 cmdline:
C:\Users\u ser\AppDat a\Roaming\ $77-cmd\Cl ient.exe MD5: 6D6C9C719E2F757442374AF378C343A7) - schtasks.exe (PID: 7656 cmdline:
"schtasks" /create / tn "$77-cm d" /sc ONL OGON /tr " C:\Users\u ser\AppDat a\Roaming\ $77-cmd\Cl ient.exe" /rl HIGHES T /f MD5: 76CD6626DD8834BD4A42E6A565104DC2) - conhost.exe (PID: 7672 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
- 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": "1.4.2", "Host:Port": "193.31.28.181:4004;", "SubDirectory": "$77-cmd", "InstallName": "Client.exe", "MutexName": "704ccf6d-01bf-4037-a807-12a60509b1a4", "StartupKey": "$77-cmd", "Tag": "Office04", "LogDirectoryName": "$77-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_GenericDownloader_1 | Yara detected Generic Downloader | 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 |
|
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_GenericDownloader_1 | Yara detected Generic Downloader | 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 |
|
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 |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_GenericDownloader_1 | Yara detected Generic Downloader | 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 |
|
Privilege Escalation |
---|
Source: | Author: Joe Security: |
System Summary |
---|
Source: | Author: E.M. Anhaus (originally from Atomic Blue Detections, Tony Lambert), oscd.community: |
Source: | Author: Jonathan Cheong, oscd.community: |
Source: | Author: Jonathan Cheong, oscd.community: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: frack113: |
Source: | Author: Florian Roth (Nextron Systems): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-01-01T05:57:09.322571+0100 | 2035595 | 1 | Domain Observed Used for C2 Detected | 193.31.28.181 | 4004 | 192.168.2.4 | 49731 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-01-01T05:57:09.322571+0100 | 2027619 | 1 | Domain Observed Used for C2 Detected | 193.31.28.181 | 4004 | 192.168.2.4 | 49731 | TCP |
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Show All Signature Results
AV Detection |
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Source: | Avira: |
Source: | Avira: |
Source: | Malware Configuration Extractor: |