Behavioral task
behavioral1
Sample
CB.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
CB.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
SMT.free.exe
Resource
win7-20241010-en
Behavioral task
behavioral4
Sample
SMT.free.exe
Resource
win10v2004-20241007-en
General
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Target
Sumatracit.zip
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Size
2.2MB
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MD5
754411d8c8e0441ebe4999d79a68a608
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SHA1
d9f0c3e045778239d1f02308eb63fe5aa4ad3916
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SHA256
fedbe20bf622ff00e485c808729ade33e349b5257cf8cefe14fb6f554c4790c2
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SHA512
4383c03f7d9d78efca621ba3ff688c5219f399d9576509c94969257b8219edb86177a4a03ee1bbf02113e98e0328be2112631bfad4f2d35d7bec4e2b5363d2e6
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SSDEEP
49152:Q5B29AAcuNBoRyE88+TNGEf6IwNeLl1BjFS4VZH2:z9AAlNB9EUrImRAJ
Malware Config
Signatures
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resource yara_rule static1/unpack001/SMT.free.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/CB.exe unpack001/SMT.free.exe
Files
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Sumatracit.zip.zip
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CB.exe.exe windows:6 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
Size: - Virtual size: 2.0MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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SMT.free.exe.exe windows:6 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 1.8MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 1.0MB - Virtual size: 1.0MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 68KB - Virtual size: 72KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE