Behavioral task
behavioral1
Sample
PeerDistAD.exe
Resource
win7-20240221-en
General
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Target
PeerDistAD.exe
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Size
229KB
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MD5
afa8bb7e6708d4b5c056079f642b65f9
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SHA1
3cadcd7a2da0bc26fd7912f46bdc692e51752913
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SHA256
9041042642f5c0b67443490fc595aaaa1858c3a8582602969f1af568cad398e9
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SHA512
46392d04c3827a9f1602685bae2b10a69306839ce3af5b51889a70925e48654e0b8793ae4f68a4ce94f7c7dc71d0d69f0437583417b32cef9619024294351ed4
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SSDEEP
6144:lloZM+rIkd8g+EtXHkv/iD4Z/kJ2U7X8+toGnnGr8+cI8e1mAi:noZtL+EP8Z/kJ2U7X8+toGnnGr8S6
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1218255752314097764/pf1l_fyX4Y944q-tMNsmbSq2cfDBpqCBXuTvF0vyF76tkTcn3FOYasjrq_iM6NffJOYF
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 PeerDistAD.exe
Files
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PeerDistAD.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: 227KB - Virtual size: 226KB
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