General
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Target
AntiRat V2.5.exe
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Size
8.9MB
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Sample
241230-qyx91sypdz
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MD5
5a0f8ab08873918de26eb71833b3ebcb
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SHA1
096d95d6e90c54c2154061a86c4b70f19efdfa7e
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SHA256
d9cd34ec3e983b19bcef251abae332d6bf3bbebc5f913502687d199f3c62111b
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SHA512
e41298934f21d637fdef528ddd6c412b19d8b23319d4cf81567ac316d7184e58b0b00675b24c348867ff384c6fdd04d4b6429360de3af8d8cc2531bd00504a27
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SSDEEP
196608:gaqLTcXPlNKwjlJ0NravK74kpoTyxZhAPecAipuLzhITYvaCymlne:xqLYtjH0NgOZpoTyxZKPKiSNu/Cy4e
Static task
static1
Behavioral task
behavioral1
Sample
AntiRat V2.5.exe
Resource
win10ltsc2021-20241211-en
Behavioral task
behavioral2
Sample
AntiRat V2.5.exe
Resource
win11-20241007-en
Malware Config
Extracted
xworm
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Install_directory
%AppData%
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install_file
svchost.exe
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pastebin_url
https://pastebin.com/raw/76WgDu7L
Extracted
xworm
5.0
GDUwGHZfCCU9BtC6
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Install_directory
%AppData%
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install_file
USB.exe
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pastebin_url
https://pastebin.com/raw/pv132qGS
Targets
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Target
AntiRat V2.5.exe
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Size
8.9MB
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MD5
5a0f8ab08873918de26eb71833b3ebcb
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SHA1
096d95d6e90c54c2154061a86c4b70f19efdfa7e
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SHA256
d9cd34ec3e983b19bcef251abae332d6bf3bbebc5f913502687d199f3c62111b
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SHA512
e41298934f21d637fdef528ddd6c412b19d8b23319d4cf81567ac316d7184e58b0b00675b24c348867ff384c6fdd04d4b6429360de3af8d8cc2531bd00504a27
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SSDEEP
196608:gaqLTcXPlNKwjlJ0NravK74kpoTyxZhAPecAipuLzhITYvaCymlne:xqLYtjH0NgOZpoTyxZKPKiSNu/Cy4e
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Detect Xworm Payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Xworm family
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Downloads MZ/PE file
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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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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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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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