Behavioral task
behavioral1
Sample
koala.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
koala.exe
Resource
win10v2004-20240508-en
General
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Target
koala.exe
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Size
16KB
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MD5
607bf2b302c3941815dc159e356f06fd
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SHA1
3d86bfc813a47dbede8f9420de418b2143e791e4
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SHA256
f4967fd913dc43ba20eeda786ce3da4119df5d86b4536c3b68f44c2ed09e42bf
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SHA512
1317171b290e0e0fc667d9b4210a34744e0b21416c56a7e56bc747851c6f1db375eb014b752ef304cd6527c5b288e49840ccf663b4a6e607afd1717653b095ea
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SSDEEP
192:fXiJtJHunl2t90RGfWYQy3G8dcInaoVE66XwsXglbr5i7amDC/sBHvWjJ1T5Fx/X:fCul2tpOfGG2vn+wH87Tc8HuLTUX
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 koala.exe
Files
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koala.exe.exe windows:4 windows x86 arch:x86
Password: infected
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: 13KB - Virtual size: 13KB
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