Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240903-en
General
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Target
Client-built.exe
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Size
348KB
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MD5
492eb44f539caa20141bd7d84783d821
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SHA1
6586778be19a5a4caf0e29b61cace38467ba7367
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SHA256
44f270569724153f8cc32905397c86d5b37285b34b1ee0df31cd195b2fa4c74a
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SHA512
a9e2528e54328cade71762185b221699e32b6c4f48c53562bfe950ee704395d399fdd757b4edb496bfb1b8694c69f6da153ce797c58dd9579d5774a86aed7a8f
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SSDEEP
6144:xI6bPXhLApfp9CpZPBbinJjNKOOlr7H7PAGm:GmhApUZgnJIvH7PAGm
Malware Config
Extracted
quasar
1.3.0.0
Meedo
2.tcp.eu.ngrok.io:8080
QSR_MUTEX_NQUsVoNfuuCMRLITRA
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encryption_key
stf5wT9i1WRQevpAlPN0
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install_name
win.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Runtime
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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 Client-built.exe
Files
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Client-built.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: 344KB - Virtual size: 344KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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