Behavioral task
behavioral1
Sample
kdmapper.exe
Resource
win7-20240611-en
General
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Target
kdmapper.exe
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Size
231KB
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MD5
37b9493c936d00a87335d9032eebbb18
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SHA1
f8099a772a38828ca950f1095d6d2aa2cf4687cc
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SHA256
f948429a846cab7bfa48e4ca3a9d6214cc51be06fea654ad11fb53b5bb9e2b73
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SHA512
9a40291fd227cfe02008c35d4d6f512e0f2136c48c1797e6266fcd494ae72c12987dca30358f9a61915b1700eff4a0a18a5f5a69284cd23d532925f1ab3da782
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SSDEEP
6144:RloZMLrIkd8g+EtXHkv/iD4bJE3U69VewbGkFZwnkb8e1mki:joZ0L+EP8bJE3U69VewbGkFZw02
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1245161606078267454/2tFUmxkNmqUe2GIZBXmqdKOdpHUqoVlnwgh1OCbXJiFehEaFxvqwVQugRpkuySUIJxIn
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 kdmapper.exe
Files
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kdmapper.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: 228KB - Virtual size: 228KB
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