Behavioral task
behavioral1
Sample
B5js43xaX2.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
B5js43xaX2.exe
Resource
win10v2004-20231023-en
General
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Target
575ba03c44749d5adfa5fac858769e150b70861586320883e02b2a802c27f732.zip.zip
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Size
26.8MB
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MD5
280d09f3b2c4fe0862f3cc3c98c891d8
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SHA1
a9cffb4abeae32e9fa22aa53a899b1453ce566c9
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SHA256
75589cdbd01804cd5a3c9537a85b67de5e06858d2770baf5f20c53da076257bc
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SHA512
4c84a885697d595b8bdee1cddb822d5e90a3bc286c6e37ae09c1741b0517aabbe9c13009c431532e4837c42fcf54983885f09d97e4fa46839995826d434cd4fb
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SSDEEP
786432:oVTB3ZyKpnDpweoQikDJzFMLGLkPPkmZDUFTQ8R2XhRq:oFjyKpnDpwBRkDpmLGLkDZIRmq
Malware Config
Signatures
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resource yara_rule static1/unpack002/B5js43xaX2.exe themida -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack002/B5js43xaX2.exe
Files
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575ba03c44749d5adfa5fac858769e150b70861586320883e02b2a802c27f732.zip.zip.zip
Password: infected
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575ba03c44749d5adfa5fac858769e150b70861586320883e02b2a802c27f732.zip.zip
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B57J/BR.ini
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B57J/CN.ini
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B57J/EL.ini
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B57J/ES.ini
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B57J/FN.ini
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B57J/Font/VN.dds
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B57J/Font/br.ttf
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B57J/Font/en.ttf
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B57J/Font/kr.otf
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B57J/Font/sc.otf
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B57J/Font/tr.ttf
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B57J/GR.ini
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B57J/KR.ini
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B57J/PL.ini
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B57J/RU.ini
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B57J/TUR.ini
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B57J/TW.ini
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B57J/VN.ini
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B5js43xaX2.exe.exe windows:6 windows x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
Size: 109KB - Virtual size: 168KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
Size: 18KB - Virtual size: 64KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 5.1MB - Virtual size: 9.7MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Size: 5KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 1KB - Virtual size: 33KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.idata Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 4KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.themida Size: - Virtual size: 11.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.boot Size: 7.4MB - Virtual size: 7.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 16B - Virtual size: 4KB
IMAGE_SCN_MEM_READ