Behavioral task
behavioral1
Sample
koko.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
koko.exe
Resource
win10v2004-20240802-en
General
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Target
koko.exe
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Size
6.9MB
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MD5
4bedf848cbe4b5b7b1af3cd7c4d5db7c
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SHA1
868c500f51222967634dcb705e7ba42d6657abfa
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SHA256
c6d52bd7c0aaadc67bcf433212a04ec2c470a592fbd11fa58af4a5118cddbac8
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SHA512
e3b0d999be6207035797faf168bf6d4f92a3468cb4592fecb73c2570ad9bdaa1146a4126a4a10ca3ab3fd6346f9fbeb9f5def635748259ec21cd668720fd43ee
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SSDEEP
49152:XC/xZL1qpiEHgA+R9ZafOKD+8PhBwYHd/bXx0P8oYK4dxQ27:
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 koko.exe
Files
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koko.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: 6.9MB - Virtual size: 6.9MB
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