Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
23/07/2024, 08:35
Static task
static1
Behavioral task
behavioral1
Sample
AZZASEC ransom.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
AZZASEC ransom.exe
Resource
win10v2004-20240709-en
General
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Target
AZZASEC ransom.exe
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Size
9.9MB
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MD5
58c99b69a533a2f2c58c53b663d407c0
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SHA1
a0b2b5bc95ecf1a2aabe89f4166f50262b1e0291
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SHA256
7036181775ecf476e0af9bc6725930be34d036d5dbfa6d7e9812054446baaae6
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SHA512
cbb71a2517cf21c18f8206cccf267bc5c69742f93f2957c9bc8a4433fcb1e90a951b423872e3c766ce03bbe79ec2a0bc7e1d67a102d85b80bd4961c25d2fdc65
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SSDEEP
196608:Ka3uLcyUJybGVJ0S8PfnBfP/tdpAxecpKLtorx41UarML30PEyyh8KgQ3UTLYdlt:H8cyU8GVmS+fBXVMxHCtMx4+QMLgKtk
Malware Config
Signatures
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ vYtzIm0SDgeCYX5eq8g7.exe AZZASEC ransom.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ vYtzIm0SDgeCYX5eq8g7.exe AZZASEC ransom.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 18 ip-api.com -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Cry.img" AZZASEC ransom.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 1624 AZZASEC ransom.exe Token: SeBackupPrivilege 3620 vssvc.exe Token: SeRestorePrivilege 3620 vssvc.exe Token: SeAuditPrivilege 3620 vssvc.exe Token: 33 2096 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 2096 AUDIODG.EXE -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\AZZASEC ransom.exe"C:\Users\Admin\AppData\Local\Temp\AZZASEC ransom.exe"1⤵
- Drops startup file
- Sets desktop wallpaper using registry
- Suspicious use of AdjustPrivilegeToken
PID:1624
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3620
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3c0 0x4101⤵
- Suspicious use of AdjustPrivilegeToken
PID:2096