Behavioral task
behavioral1
Sample
91a8f24b813ec8f33e1222a9996cdfe5c4c0dd56cb922a113a87953878b065a9.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
91a8f24b813ec8f33e1222a9996cdfe5c4c0dd56cb922a113a87953878b065a9.exe
Resource
win10v2004-20240709-en
General
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Target
91a8f24b813ec8f33e1222a9996cdfe5c4c0dd56cb922a113a87953878b065a9
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Size
231KB
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MD5
4889fe4c6bc9c53e9e53983517727fa8
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SHA1
3964bac164a7cdc3a0cddd46f8d3aab5e568b515
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SHA256
91a8f24b813ec8f33e1222a9996cdfe5c4c0dd56cb922a113a87953878b065a9
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SHA512
f44368d7406db49db31b13f578e968a053e100d49cd2dbf05dabe3a4f3e9412e8fd2ce6ac0c363f34091f5e7af78769ca0cc1b6020f7e8e9a313813a575c7100
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SSDEEP
6144:BloZM0rIkd8g+EtXHkv/iD4i/QClL8e1m+cOi:zoZDL+EP8IpHE
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1267404483273425028/k8YQeawmuuhmsYpDBs-Q6wJ2H_HeFS9SmCMW95XmRdznY1Eahh4m5w0agoLNs5B1b65I
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 91a8f24b813ec8f33e1222a9996cdfe5c4c0dd56cb922a113a87953878b065a9
Files
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91a8f24b813ec8f33e1222a9996cdfe5c4c0dd56cb922a113a87953878b065a9.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