Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10v2004-20241007-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
c9c5e0626761e6dfdbe01941e8f8b332
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SHA1
6222bf847ba1b324bc291867abcf3fe2d3d76400
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SHA256
cd86c5503176eec0bc6209d504366ffdbe9d18167460aa2784a2f720e8c5bd6d
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SHA512
2328286dd003d413f38c2f6d8afc3933cfbf18774d1b26b7d40fe97537c7cd34d76e3b43492f5d0628464877beb78e524cee3941f9312e23356fdd5e7192bc2c
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SSDEEP
49152:Dvkt62XlaSFNWPjljiFa2RoUYIsCmwLoRdJFTHHB72eh2NT:Dv462XlaSFNWPjljiFXRoUYIsCmO
Malware Config
Extracted
quasar
1.4.1
Office04
98.218.3.74:4800
366cc5a6-9875-43f5-b406-b422373aa69b
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encryption_key
13765B0E8E4F6CB0053DA8B5123C9FA10F47987B
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
bob
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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: 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