General
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Target
Loader (123).zip
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Size
88KB
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MD5
8af750e77d942f7c6ad712b3fc0e116a
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SHA1
a345976cbd735bba51a8f7531896b10bbf6c2dc9
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SHA256
6a4fcfa665df00fc6999864ba0979baf7b702366bee72f25e54ab8497ddf4ed4
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SHA512
7680b16288d7061ab73bd3415a3275d3d8468eff3e9fe93ed3d62e2717811fdb92c0c1a347827a52a08a4cfa7aa9beb1ee06f1d257c1b7a46846d969fd80ff69
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SSDEEP
1536:EPznw5/Ir67Z296c3qYLfP+lGk3xyOr+/dBsfGwqU/CHujqFd7egBBIfnbK:EPz8Ar61oJ6SWgk3x3r+/Y5l/CHDVE+
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1329920564365885513/QoIgOCKNLFA4sABul_Bes4LgikBk1Yiy5mBgCkfBzaW0yujdTDakv5W_NAeetx1oEHur
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule static1/unpack001/Loader.exe family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Loader.exe
Files
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Loader (123).zip.zip
Password: 123
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Loader.exe.exe windows:4 windows x86 arch:x86
Password: 123
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: 227KB - Virtual size: 226KB
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