Behavioral task
behavioral1
Sample
3S.exe
Resource
win7-20230712-en
General
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Target
3S.exe
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Size
227KB
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MD5
0c6f57e34c60e926869925974c0ba0c6
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SHA1
c2c96e1a4da5fe008796801569ebdfcde4d3c07b
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SHA256
3818bc71c250768baec123373d2e873428509f7dcef12a56f4d428d488661c71
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SHA512
70281ccd28331260e0808d00a0965753e4f8d9c4b8a0e211abd97556429ad7cb3a647a017f53a8d111468639fe9c05e0022cb034f6069b6b9fff214d389ac193
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SSDEEP
6144:+loZM+rIkd8g+EtXHkv/iD4n6rk/1+mplsl3ySX6Eb8e1mai:ooZtL+EP8n6rk/1+mplsl3ySX30
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 sample family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 3S.exe
Files
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3S.exe.exe windows 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