Behavioral task
behavioral1
Sample
test.exe
Resource
win7-20241023-en
General
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Target
test.exe
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Size
231KB
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MD5
79dbb36ad4aa16d2ba9b0dc335c29663
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SHA1
2806cf13d56759fe3015c7b7ba2b4f0439dce3f0
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SHA256
fd88f68339f4a1f2f3892667bd5026d60a327d7f3ebe492a09901aa566bc66f5
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SHA512
1ae155087e5c1a2c8fc9f44eb3c43bcf4d0f4b4d4a5b56f8b49140db51e1f4a488d2ea917c0731ffb2f182401dbe18682d5571ca0fb09e9e67622bd017bb61f7
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SSDEEP
6144:9loZMprIkd8g+EtXHkv/iD4iXptbhS6FgAxDeebVfBb8e1m3oi:foZCL+EP8iXptbhS6FgAxDeebVxa
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1351374291261718571/m5LIIWlqorXnzT48pitTuxfMUMetQJ52rJhbTqyDfIywVmJ3ZnM3iUIHTa3R0uTiMSFB
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 test.exe
Files
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test.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