General
- Target k3t05Da.exe
- Size 5.9MB
- Sample250322-qf5alstset
- SHA256 fb0fe7e716caf3e0dcb1fbb6824466f807aa85295bfc7ed7046febf3331dab88
- MD5 5cfc96efa07e34454e5a80a3c0202c98
- SHA1 65804d32dc3694e8ec185051809a8342cf5d5d99
- SHA512 1965ddab497907e3bf24f656f1085117c3f57c830e11c54068914df9d41de477eb6d23154ee0b7bd7781081aa7046390c9eccc2c80dbdfd3eb2693eef4ea1e01
- SSDEEP 98304:vWRINcH5pNN/N91h2eDZQjL7sU8I5DKBWoClkRGJewd8Y3evBQ9LtYVrEx3/o6EU:ORINg9GeDVI5DKBWZlkgJedYs6LtYdEV
- MD5 SHA1 SHA512 SSDEEP
Behavioral task
behavioral1
Sample
k3t05Da.exe
Resource
win7-20241023-en
19 signatures
150 seconds
Malware Config
Extracted
Language
-
ps1
Deobfuscated
Source
URLs
-
ps1.dropper
http://196.251.91.42/up/uploads/encryption02.jpg
-
exe.dropper
http://196.251.91.42/up/uploads/encryption02.jpg
Extracted
Family
-
xworm
Version
-
5.0
C2
-
httpss.myvnc.com:1907
Mutex
-
xWIArEKzuXpfRVkJ
Attributes
-
install_file
USB.exe
aes.plain
Targets
-
- Target k3t05Da.exe
- Size 5.9MB
- SHA256 fb0fe7e716caf3e0dcb1fbb6824466f807aa85295bfc7ed7046febf3331dab88
- MD5 5cfc96efa07e34454e5a80a3c0202c98
- SHA1 65804d32dc3694e8ec185051809a8342cf5d5d99
- SHA512 1965ddab497907e3bf24f656f1085117c3f57c830e11c54068914df9d41de477eb6d23154ee0b7bd7781081aa7046390c9eccc2c80dbdfd3eb2693eef4ea1e01
- SSDEEP 98304:vWRINcH5pNN/N91h2eDZQjL7sU8I5DKBWoClkRGJewd8Y3evBQ9LtYVrEx3/o6EU:ORINg9GeDVI5DKBWZlkgJedYs6LtYdEV
- MD5 SHA1 SHA512 SSDEEP
-
Detect Xworm Payload
-
Xworm family
-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
-
Blocklisted process makes network request
-
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Drops startup file
-
Loads dropped DLL
-
Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
-
Checks whether UAC is enabled
-
Suspicious use of SetThreadContext
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
2PowerShell
2Scheduled Task/Job
1Scheduled Task
1