Static task
static1
Behavioral task
behavioral1
Sample
Brass.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Brass.exe
Resource
win10v2004-20230915-en
General
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Target
Brass.exe
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Size
6.9MB
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MD5
b573e450330a6902434ff6d9f10f1143
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SHA1
57c08cd1529a7558592aab0dd3b09993ce51681f
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SHA256
d1d94828df6e7fdddaddeaf98eb4dbd16b9c36c298ce6ee559d799baa7aaa4cb
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SHA512
1b6c3586871234f692b770b78ee8d6d7c2bbcd213f6fadf807cc62a56fb75bf9320f47b1965c964f734bb2dfadf78adf8f05dea816a0ed301d40c26dee766015
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SSDEEP
49152:yep5NzlkJ7z9cqPGGq6zT5A0lV/V2sW3eT/AntV/Zny9dVq9PH29eeYKcx42IKqj:yeg7NGG2HMvcm2IPqDRnvCSyx
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Brass.exe
Files
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Brass.exe.exe windows:4 windows x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE
Sections
.text Size: 6.7MB - Virtual size: 6.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 200KB - Virtual size: 200KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ