Behavioral task
behavioral1
Sample
bf1ddaef01c54156875f83d24de19811476ad618bf126460a764c0cb13bcf3b7.exe
Resource
win7-20240705-en
General
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Target
92fe53ca6c8f1a424db45bb3f7cdfe56.bin
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Size
90KB
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MD5
9308a86f49ca2eae9ddda090342aad27
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SHA1
30802c146864a248927106168c01ad583441c223
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SHA256
a83df6ed601d8ad1235d1b76af4019e95a24dab4aa64ee7e1267d661e64d18d4
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SHA512
46334047221599167d28eeb72e22432df1258b90172d5f9a0375a8b14d6639748ea8a51aebcc111cb75c4e3a47e39eda1bd6038b8e501353ecc50086f82bfa85
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SSDEEP
1536:/dDzLwk/kFPLmgcpJxzJJDun65G+blF03ZurQqeWfarYP9jl0msKrEtWTsgmPG8v:QLmzd9JDk65G+5wynJP9GmPGWxmP7t9
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1272960886117498900/YDNHOw3Kos6nSkhyh1-x7wdT3ReBATEXF8kthHRm5wmUtVhzhv3W6IJn4x78vB7KKS5f
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule static1/unpack001/bf1ddaef01c54156875f83d24de19811476ad618bf126460a764c0cb13bcf3b7.exe family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/bf1ddaef01c54156875f83d24de19811476ad618bf126460a764c0cb13bcf3b7.exe
Files
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92fe53ca6c8f1a424db45bb3f7cdfe56.bin.zip
Password: infected
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bf1ddaef01c54156875f83d24de19811476ad618bf126460a764c0cb13bcf3b7.exe.exe windows:4 windows x86 arch:x86
Password: infected
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: 225KB - Virtual size: 225KB
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