Behavioral task
behavioral1
Sample
dmbral.exe
Resource
win7-20240708-en
General
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Target
dmbral.exe
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Size
227KB
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MD5
5bf15d22b81f8487a3ba892c44b48e80
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SHA1
b1e36876f0e7788a646844f08f32a0d17ae335bf
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SHA256
3ee237cbbcd082d1668f330d6c2aff90e4d965b343aca348d64a3c23cf394b67
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SHA512
f7889333a476acb65a5a9a5e4076d9060471a28dfda46e67955c849f54b13c74aafa408de9ed9b6c4f3be7b8990c873407927fdd87afee7ef7b6a0a7d9e3c6f2
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SSDEEP
6144:eloZM+rIkd8g+EtXHkv/iD4Sf5pBPUonVWvRsY9w4b8e1mBii:IoZ1L+EP8Sf5pBPUonVWvRsY9hO
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1301414253722603540/jg-6zDziHcOTDOKtI8ajj94GfsHIjqSlAXLi1SgBHImM2bg01nh8sCJuz98O7QdqPpkO
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 dmbral.exe
Files
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dmbral.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