Behavioral task
behavioral1
Sample
Xworm.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Xworm.exe
Resource
win10v2004-20240419-en
General
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Target
Xworm.exe
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Size
3.1MB
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MD5
8bc1f61243de401d9bed16e5b914fe4e
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SHA1
900017643f4adf3f530c5cb86f24dce1259f02ae
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SHA256
c766cfd840fac6e66078f350a01fb95efb599feede4705bdf0be98b94751be5c
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SHA512
649e6aa3bf6a7ba394928fb67246cc615a03539f80c6811f718c3585192a238efb4a28c8324cd0a3067ac456cf8f183af289efd5c044cf14f82a9e54e20179af
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SSDEEP
49152:BvMY52fyaSZOrPWluWBuGG5g5hcS/dBxRGoGd1STHHB72eh2NT:Bv152fyaSZOrPWluWBDG5g5hB/a
Malware Config
Extracted
quasar
1.4.1
Hawa Slave
127.0.0.1:4782
c043154e-c770-47c9-83a7-6cfcfe2e8a81
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encryption_key
89EA4FFE5F728FABCCAA501D85497C89A98F95CB
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install_name
powershell.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
svchost
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Xworm.exe
Files
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Xworm.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: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
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