General
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Target
vJxj.exe
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Size
227KB
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MD5
945f3e693c8465494fcb4d208498b4c2
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SHA1
8750e7c46ba29ddf303ce39a00b915317c6695b5
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SHA256
492f241ed1af18331729e305f0c4943366cc399532898554f7169571e34fa2e2
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SHA512
be19a393984e5699170f094c33c2876708d6d8f58910c40b0ced63e5b07bb72447dd6c7bda64d53a5b6b60ecbe1f5afd23e5c32f24efddf775bad839f0c3869e
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SSDEEP
6144:+loZMDXU9Zx0kt8X0/PSCsMmp+LSQPL4eBECDjaTC3b8e1m7i:ooZnf0kkPzp+LSQPL4eBECDjash
Malware Config
Extracted
umbral
https://canary.discord.com/api/webhooks/1318187599499624529/392m_fSg3L-8l8reFwCm0wtrkfQw5MU51p7maoLRwJXOEUKy4rdUcSw4xShjUwdIjAge
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 vJxj.exe
Files
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vJxj.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