Behavioral task
behavioral1
Sample
3818bc71c250768baec123373d2e873428509f7dcef12a56f4d428d488661c71.exe
Resource
win7-20230712-en
General
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Target
0c6f57e34c60e926869925974c0ba0c6.bin
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Size
89KB
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MD5
30301cfd31e65640329de95984022f51
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SHA1
bd7bde87004e7291ac1625f1533c616c4b6fc97a
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SHA256
1ea8814db986f6d071798b5d8087d4816ce27120543d3460ffc21afa07499ecc
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SHA512
4fe3c7b89e98c7ee898075004e095a99cc5d9c47639223313df5e905519e87e8678a6988578319f68a16a4ad53ded993688ff2d70e24dcedcbcab2e0af39089a
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SSDEEP
1536:BTK7U7yDPiV0sUOAJ67uPdYrG4YJzgTjiZ8Hka71soBv0j3Pa22Xnr4L/3c4CTjR:BTKI7RTY6SPdYi4YJzedmNjHaQk4Cz
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1143115606330200074/pyKgc8H0hMiolN7TnRv_a5UZxMEV9hMyMPcyMEE79xLCjkKRbFA2ce8qYJuxmfb_M-83
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule static1/unpack001/3818bc71c250768baec123373d2e873428509f7dcef12a56f4d428d488661c71.exe family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/3818bc71c250768baec123373d2e873428509f7dcef12a56f4d428d488661c71.exe
Files
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0c6f57e34c60e926869925974c0ba0c6.bin.zip
Password: infected
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3818bc71c250768baec123373d2e873428509f7dcef12a56f4d428d488661c71.exe.exe windows 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: 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