Static task
static1
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
Umbral.exe
Resource
win10v2004-20231023-en
General
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Target
Umbral.exe
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Size
682KB
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MD5
2fb9c890c2d6abfdb5e0c49e1ec3f48c
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SHA1
5667450a5bbd390be708e716a70246b85ecee77f
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SHA256
8e0c46a44be6fb8ea35eb053fa6507e5a61fe6ae9f548361c6719d7181b8be89
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SHA512
b26286d0f8bf774f1e9131fdd24c71cfdb86c16450ad2581ec010aa147d4fd0ee5991534a17aa6ffbf1484cf90e8c498f96b1e3d0dad1a42b8b06a4796134720
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SSDEEP
12288:R6jYEG2ZVW1UY9mT1ST060SuGeaa9qN0qF6XaSDO625:4lrW6Y9mTMQsF6KSid
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Umbral.exe
Files
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Umbral.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
op6xV Size: 272KB - Virtual size: 272KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.text Size: 405KB - Virtual size: 405KB
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
.lJcg Size: 512B - Virtual size: 134B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
A54BB24B Size: 512B - Virtual size: 16B
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.null Size: 512B - Virtual size: 276B
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