Behavioral task
behavioral1
Sample
12eab714a3f392af46c79bb9eb28155b97d6456350f40f8b85b630de71c5c57c.exe
Resource
win7-20240221-en
General
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Target
12eab714a3f392af46c79bb9eb28155b97d6456350f40f8b85b630de71c5c57c
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Size
228KB
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MD5
cd60f2c4d6616cf3e5785c07526be795
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SHA1
cc463a67d382c6bc11a05d1bfe41031b64d2c39c
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SHA256
12eab714a3f392af46c79bb9eb28155b97d6456350f40f8b85b630de71c5c57c
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SHA512
d255801159dfaf6c3f1d2cc19c9fab3421e04fff84aa2078043745d69a026cebf0dc6e8080174182f555cfe34b755035c0d2adfeeb322e0ff708a4d577c21536
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SSDEEP
6144:MloZMzrIkd8g+EtXHkv/iD4IB2kxfEY3Omfh8ItUlLb8e1muyi:KoZcL+EP8IB2kxfEY3Omfh8ItUlP
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1217801123927162921/dgMvVtiWuB8DS8tdYGE33IGFk9YmbGNpXPqXFPoCA8ikryGBR6W28cmbr1v_cxCZqdBI
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Detects executables attemping to enumerate video devices using WMI 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice -
Detects executables containing possible sandbox analysis VM names 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_SandboxComputerNames -
Detects executables containing possible sandbox analysis VM usernames 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_SandboxUserNames -
Detects executables containing possible sandbox system UUIDs 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_SandboxSystemUUIDs -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 12eab714a3f392af46c79bb9eb28155b97d6456350f40f8b85b630de71c5c57c
Files
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12eab714a3f392af46c79bb9eb28155b97d6456350f40f8b85b630de71c5c57c.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: 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