Behavioral task
behavioral1
Sample
Ro-exec/loader.exe
Resource
win10v2004-20240709-en
General
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Target
krampus.rar
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Size
66KB
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MD5
ba74fc6a6e3dac97bbc706a8e393e9d1
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SHA1
91539f9825d74097460a284991c14ae5973fcfed
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SHA256
52800e6981347749a39aa5a1e74e87dd91fa40b2ec4eb16eb1abbafa4a1d976a
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SHA512
07c5117f7c34a8bbade060c60f584105187817f8e1cfaacad4c20f5318332842e61fcb1c33476aa0e7af4dcad97618390287d62664c89be5c15f42b5593b7119
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SSDEEP
1536:lQUqgFIsoYAqRQ36tvaOapJmA+mMA9iCEoQ3EPuUO:lQgF/oYdxZaOapXd9Bfu3
Malware Config
Extracted
xworm
5.0
wd6jhrWNYWQZnbJt
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Install_directory
%AppData%
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install_file
svchost.exe
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pastebin_url
https://pastebin.com/raw/tAs3dppD
Signatures
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Detect Xworm Payload 1 IoCs
resource yara_rule static1/unpack001/Ro-exec/loader.exe family_xworm -
Xworm family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Ro-exec/loader.exe
Files
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krampus.rar.rar
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Ro-exec/READ ME (ro-exec).txt
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Ro-exec/ezdebug.png.png
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Ro-exec/loader.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 33KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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