Behavioral task
behavioral1
Sample
Stealer.exe
Resource
win7-20240611-en
General
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Target
Stealer.exe
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Size
227KB
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MD5
1d9aea272c24a72800c6448b30883296
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SHA1
f2bf74dbaca750d00fc3e62a525fc16b26b8ce8b
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SHA256
3aa5fd9be59e523761738140b7a5906a3672a3b75827dad09911e3280f98680d
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SHA512
14925fd6f85f4f58a8bd10937d7326b4cf44ed8fb11d3333ba5f7c1f2755c5d005dc8dca9edb5a03b81b5e86c50f267bf779633c1241719cb39bac5e122b07b5
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SSDEEP
6144:+loZM+rIkd8g+EtXHkv/iD4eBVnrRiK1ZwBzOur8xb8e1mLi:ooZtL+EP8eBVnrRiK1ZwBzOurwF
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1251854334958768129/Qc0gSKGki_m9TD54GA864n0n2l78BtMFU8dE4edCHdyQKtk6l_zlVzuyD5jVgzOL3fTo
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Stealer.exe
Files
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Stealer.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
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
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 224KB - Virtual size: 224KB
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