Behavioral task
behavioral1
Sample
8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
Resource
win7-20240903-en
General
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Target
8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
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Size
231KB
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MD5
f70b5e56a09af292d4e909c547f9c8c0
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SHA1
577883bdbe8dc9582e15e7a1212b1fe432bafce3
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SHA256
8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067de
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SHA512
e54ccb56aa6473abd3530493933d5164f2dff02076e0f03443382f02d177a52e318d8d0f432e6a3fb5620eaffd09f2dbf6ccbf9698ba149b149c594fa162d879
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SSDEEP
6144:xloZM+rIkd8g+EtXHkv/iD4+Ocip3cw/oeHp0AVO0b8e1mMi:DoZtL+EP8+Ocip3cw/oeHp0AVji
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1326652489054818346/f_cBTMEYAkXYcTbEkW-MUwYrefMORTfuoofsZ5ymJ5yR8BQpohmaCuB-PwAuIP1xAUKw
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 8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
Files
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8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.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: 228KB - Virtual size: 228KB
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