Behavioral task
behavioral1
Sample
FnClient.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
FnClient.exe
Resource
win10v2004-20241007-en
General
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Target
FnClient.exe
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Size
1.6MB
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MD5
794aff3545f0ea50584adc40dd2f0896
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SHA1
6130d56bf9ba1cbe320f0b24141b0c9491584d3f
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SHA256
18888fdc50df5f29587b1c83cb5a217d4837f5fb31b74b010e2337de4b5da988
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SHA512
d7d9ca25f7535f10232b715ef5662f7316c512dc7da1036d3a31e77922fcaa30e5066fcf7142c743147e2d9aebdbf778be0390512a6f397c692118d7f11f1239
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SSDEEP
12288:ofUX9SOQjN9wr5jpvkP3bap3WUkv9wO4ngeA4EoELzXKlfGba5hvMNGcxzY5Sqax:hAbIfIgJGRg85sPDr/VkJ4UB
Malware Config
Signatures
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Chaos Ransomware 1 IoCs
resource yara_rule sample family_chaos -
Chaos family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource FnClient.exe
Files
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FnClient.exe.exe windows:4 windows x86 arch:x86
Password: alfred
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 1.5MB - Virtual size: 1.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 99KB - Virtual size: 98KB
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