Behavioral task
behavioral1
Sample
executor.exe
Resource
win7-20240221-en
General
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Target
executor.exe
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Size
230KB
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MD5
6d36622e437d5f0bbeb1e43ee49ffe35
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SHA1
98751d0a048e319fec614ae26c1c78c86a048300
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SHA256
7561ef67b210e8d30d71700ca0288c5d391adc968988db16eeac209b7cb5941e
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SHA512
10f21503c75bded2ce97b260792581d7abf7f633d29cff93251957dad2fd184911160e1dbac19d7325703d0163a2b34e728be07de273dcbbbe87f41da6a1f13e
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SSDEEP
6144:lloZM+rIkd8g+EtXHkv/iD40naJUBPUonXWvRsY9Mcb8e1mh5ui:noZtL+EP80naJUBPUonXWvRsY95OD
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1250415107909877781/1IHWX-A_B5LAE4exMzEQBSl89081t9nd5M3o6kddoQT_fkImb8DiRCDij_A_dYoEuLQh
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 executor.exe
Files
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executor.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: 228KB - Virtual size: 227KB
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