Behavioral task
behavioral1
Sample
YashmaClients.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
YashmaClients.exe
Resource
win10v2004-20250217-en
General
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Target
YashmaClients.exe
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Size
129KB
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MD5
15fba1967c6bcd09520811dfe34a159b
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SHA1
dec383511b8f764f3222798586ee22f0fda0331c
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SHA256
a83e19610aa006d4789bb38e18b609538befb16a1df30e1205e0c38aeda089e4
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SHA512
f2990e7c548f0bb18e84aeff62a38ce5d97046b44313dfda948d51efe4eac7c855b71437b57cb2e9f48453a27570559c3d6ab8349be1fdbaac44b2ef79f9dc59
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SSDEEP
768:x7zxAmU2NJ1KQxJPho9aT3e82hQfMCwRhOF15utoS:xND3x7Pq9m3ZsA/wCFLS
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 YashmaClients.exe
Files
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YashmaClients.exe.exe windows:4 windows x86 arch:x86
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: 24KB - Virtual size: 24KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 104KB - Virtual size: 103KB
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