Behavioral task
behavioral1
Sample
YashmaClient.exe
Resource
win11-20250210-en
General
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Target
YashmaClient.exe
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Size
130KB
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MD5
6a5d6de74af2307b9ddb8e7e0a05aec3
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SHA1
a9bb545b11c8b4415359fead7a92ea848f508530
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SHA256
4e44d16e3c4274d3a49d8562299659b7177632e484ca7ba3c0d7a95bc44d686a
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SHA512
bffc0eed72576ac2b0d68410db02d76369bd937d9a4767cc0edd021343cf8f0a81af9813cb0038726ff61ac274f81ae4144f3717148807ba5973b7103408f8f2
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SSDEEP
768:w7zxAmCgnegjDho9Ws82FOfMCwRhOF15utoS:wNCRADq9W3cS/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 YashmaClient.exe
Files
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YashmaClient.exe.exe windows:4 windows x86 arch:x86
Password: 123
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: 25KB - 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