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Static task
static1
Behavioral task
behavioral1
Sample
LETTER OF AUTHORIZATION.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
LETTER OF AUTHORIZATION.exe
Resource
win10v2004-20241007-en
General
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Target
20012025_1552_20012025_LETTER OF AUTHORIZATION.zip
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Size
604KB
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MD5
d76d2911f884df8dab209a9e399bccf6
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SHA1
7dbf3c8e920e9f532d69d467f5563b756cf773dc
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SHA256
fe6402cb56844ea02e9d99b45ec657bf4716b5d61fa057894f811e665366571d
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SHA512
063a4e6203a95686381c419985317ada14b5fcc3532746e63b2d9281bafff1f246af9d42468faf079cc5c9d73a9d0cc6fd7db57ad67cf76a99cd9932f17a1a45
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SSDEEP
12288:ZWqCIW3Ll4g/ozVp0LqkOplsk+xL9rOLmJaeBym2AWyaKCWzah8q8kfHXu:ZTCIa4g/owOHsVxZOAWyyWMFDPe
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/LETTER OF AUTHORIZATION.exe
Files
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20012025_1552_20012025_LETTER OF AUTHORIZATION.zip.zip
Password: infected
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LETTER OF AUTHORIZATION.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: 1.2MB - Virtual size: 1.2MB
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