General
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Target
R0X-Built.bat
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Size
409KB
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Sample
240504-fvjmcaea4s
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MD5
baed4bf822391e30e4dbe2ae0ea3fcfe
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SHA1
d978134771b65bace600644691b4d30c893920e8
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SHA256
5ded8a15f37933b10dc5f2daea6c7ebbee3017da22d53f875acfa5882a318b6d
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SHA512
b428424cfe003421a7c0a5d21a06709e80ee35d8c0f0501be19d8250fad27c72fcd98b9290510de0dc1147915751383a2908f075592eb4f2b8258e090cf2c452
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SSDEEP
6144:OMS2pJAJcC0B6ezDDORUjySfNr3FHg60x4gQRbcdVsmAklsGEUGka9mC:jpyJcC+VzDDORm1rUQyiklFEUGka9mC
Behavioral task
behavioral1
Sample
R0X-Built.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
R0X-Built.exe
Resource
win10v2004-20240419-en
Malware Config
Extracted
quasar
3.1.5
Slave
centre-clan.gl.at.ply.gg:40354
$Sxr-HfroCBO1JCip2IbHKX
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encryption_key
2mXe0Epj621bYEM4YYhW
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install_name
$srr-powershell.exe
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log_directory
Logs
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reconnect_delay
1000
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startup_key
$srr-mstha
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subdirectory
Windows
Targets
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Target
R0X-Built.bat
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Size
409KB
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MD5
baed4bf822391e30e4dbe2ae0ea3fcfe
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SHA1
d978134771b65bace600644691b4d30c893920e8
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SHA256
5ded8a15f37933b10dc5f2daea6c7ebbee3017da22d53f875acfa5882a318b6d
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SHA512
b428424cfe003421a7c0a5d21a06709e80ee35d8c0f0501be19d8250fad27c72fcd98b9290510de0dc1147915751383a2908f075592eb4f2b8258e090cf2c452
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SSDEEP
6144:OMS2pJAJcC0B6ezDDORUjySfNr3FHg60x4gQRbcdVsmAklsGEUGka9mC:jpyJcC+VzDDORm1rUQyiklFEUGka9mC
Score10/10-
Quasar payload
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Suspicious use of NtCreateProcessExOtherParentProcess
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Downloads MZ/PE file
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1