Behavioral task
behavioral1
Sample
591be99ca233dc0bfb5e64b9fc22309c7019f401375aa2fcf0fc87ef3789c371N.exe
Resource
win7-20240903-en
General
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Target
591be99ca233dc0bfb5e64b9fc22309c7019f401375aa2fcf0fc87ef3789c371N.exe
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Size
231KB
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MD5
6666c618cfef7187d04f9eb7d0cda700
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SHA1
3a3ae164b936113dd895dc1d6bf69ff8e13b4ebe
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SHA256
591be99ca233dc0bfb5e64b9fc22309c7019f401375aa2fcf0fc87ef3789c371
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SHA512
10b100b9c8d173a1d340e76325b2a52273ef9121c2b560f80d26e785606e60a5a291d9df3f80b442b0ab9e0a5368344881beca4236d604021a74a78ba1acc3ce
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SSDEEP
6144:RloZM9rIkd8g+EtXHkv/iD4vhjKEKtFuYr20VJg1Jb8e1mti:joZOL+EP8vhjKEKtFuYr20VJgPr
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1327206784108068875/wzjvx_5jjHa7l3Jym0vEqbJGwBZ_PiZ2-3fjL-iIU9GxWktZs0oQfJSna-a2M5Mce2pb
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 591be99ca233dc0bfb5e64b9fc22309c7019f401375aa2fcf0fc87ef3789c371N.exe
Files
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591be99ca233dc0bfb5e64b9fc22309c7019f401375aa2fcf0fc87ef3789c371N.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: 228KB
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