Behavioral task
behavioral1
Sample
upx.exe
Resource
win10v2004-20240802-en
General
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Target
upx.exe
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Size
232KB
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MD5
4f64d4d9289bdfcf55fe7a4de0e07f27
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SHA1
9981fb1876461216a376558f41fa67ba4bc64aba
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SHA256
8b8e99eb8ab351e0c1d45aac62784d4e941eb4816ec00736704c564c670555da
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SHA512
78a60559439a7b0d16fcb926c8ba16531cbaf34fdc47f0abdc236921e6f196fe829118cd8ee252c3699486a849a5ffcb2744f3ef802ed8f39369388f1b9c326b
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SSDEEP
6144:9loZM+rIkd8g+EtXHkv/iD43jn0BPUon4WvRsY90vb8e1mnxFi:foZtL+EP83jn0BPUon4WvRsY9uYm
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1281530185321156663/D5zfp8fwZ0airaU9qx4oZzemQX8eWe_A9whpSCBsH5minNFS7aRp31EvssVYVENCN25Q
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 upx.exe
Files
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upx.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: 229KB - Virtual size: 229KB
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