Static task
static1
Behavioral task
behavioral1
Sample
Koteyka.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Koteyka.exe
Resource
win10v2004-20230915-en
General
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Target
Koteyka.exe
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Size
508KB
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MD5
54c8253793fb9c83ce6c553a54f83f2f
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SHA1
507ffaf3cdc0e88f2095e793f1247090c80ee55d
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SHA256
ecfe4ca5768942e56a2b0e4e8214dd371af3245ac08b7ebb870ab442b42a5b2f
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SHA512
2b8490a921d55dd5946cc1c38f7cb1fdbba8c313912626b80d2b97a1566bdcd13dd5edc8fd4e00bb906b5adea1b056c143e7e936c93a1300889f03564d24358e
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SSDEEP
12288:CbNFalBz+LpvtuXq15/M9TsWlULX1aFpPDQ:CxF6+LpvtSq34TsxbUPM
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Koteyka.exe
Files
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Koteyka.exe.exe windows:4 windows x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 414KB - Virtual size: 413KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 7KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 3KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 16B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 25KB - Virtual size: 25KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 51KB - Virtual size: 51KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ