Behavioral task
behavioral1
Sample
Stealer.exe
Resource
win7-20230831-en
General
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Target
Stealer.exe
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Size
229KB
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MD5
9d111f599bfe2042d86271055504b779
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SHA1
979fb5839449b4d68eca7efcff1f0459bec67f92
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SHA256
e6cc46237ceba579e5594cfbab67ea20f8e486a4a4cd54c06d018a3adbc62c39
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SHA512
548688111015f77422f2c7d37537c5cfbb640e00da5a38584c5b6f3b9720a73009f5b7e865e7153c9519db0bdcf1e0b9662737fa9503c2c5029044fe3e814458
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SSDEEP
6144:lloZMzrIkd8g+EtXHkv/iD4CmHYtxdI8e1mT+i:noZcL+EP8LIxEIz
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1163125491176308877/Qme2pRSu-AgphjPzpYgmOzHq9nWT3zyl17XkzmvmtqkHMs7rnLWWXBZaDMpqqtxL-is2
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 Stealer.exe
Files
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Stealer.exe.exe windows:4 windows 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