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Behavioral task
behavioral1
Sample
Nitro Tools.exe
Resource
win7-20240729-en
General
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Target
Nitro Tools.rar
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Size
82KB
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MD5
7460868214131fe4bc500c47c5f4b2fd
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SHA1
b3e620e61b573737e26eafc0b42588227802722d
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SHA256
4adaffe46ccae1425c54b81f87fcb56b7f66760b5d5f0ae3328e72c934bbb3c8
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SHA512
3c2f5f4af969997b8939222daa16010435e97e57da110b64a61e13bc3d8d32d54bed31478bc0fbec8479c143b1d4234b43c9d8814c473b5e29f95c690cccc94e
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SSDEEP
1536:WQ5EgwfR8sOVflllq9yZvBX1xKjFogPrU+b2zajL:WQ5NwmHVflllq9yHFxKjnTU42z+
Malware Config
Extracted
umbral
https://discordapp.com/api/webhooks/1281243540256591944/Hvm3cR-qlME8rmsZEzAd9Bcccgxn-2QEXALCjrbq5rrzjv2Aw7afNK5Xd_8l5UgqnCuL
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule static1/unpack001/Nitro Tools.exe family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Nitro Tools.exe
Files
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Nitro Tools.rar.rar
Password: 123
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Nitro Tools.exe.exe windows:4 windows x86 arch:x86
Password: 123
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 228KB - Virtual size: 228KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ