General
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Target
RC7.exe
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Size
232KB
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MD5
d59f28e91f0758221b66e6f5c4cc793c
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SHA1
5cf89331e57cabba6b6844ee0d1ee3bb5916c7a2
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SHA256
839498d96202c30898aefe9567bf03a5612f437829886b3d6db1839c9d058466
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SHA512
ee27b92796473a021a104581d950438a367a37dd7214b73ef70af59cccfe64e6460a38fabc7a2e9f1a77194e99902e280823701499f8212a7df64151f10bf642
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SSDEEP
6144:RloZM+rIkd8g+EtXHkv/iD4o3l8rRiK1ewBzOuraAb8e1mw4i:joZtL+EP8o3l8rRiK1ewBzOur/hB
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1262147610945257512/-Xu4FqLQWfZqO1H3sHq_KSG7s3qtQIL5BdKpMFImGF_9c9qqUxPhCF93j4QPRYy0qrxt
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 RC7.exe
Files
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RC7.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: 225KB - Virtual size: 225KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 5KB
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