Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20230831-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
c1e994a25762de2f670f5755cd52e30a
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SHA1
c085ac5fc6c32dcc4925f05eacf1d2d7c7e2567a
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SHA256
38a96c3ff97d6ef93c1ea99c660642e537129035b7dd7ca209873ce95081eda3
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SHA512
74815a0af108d39f157877d0081916ad1d1f6402be6449a8c22cb71842920cf2881a93fb16a2b8177e2d2e73f9bb28673be52ab6b04e6e96fc3768ba24d73c73
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SSDEEP
49152:fvmI22SsaNYfdPBldt698dBcjHsgfTpGNvJ4LxGd8cTHHB72eh2NT:fvr22SsaNYfdPBldt6+dBcjHJGOV
Malware Config
Extracted
quasar
1.4.1
XD
DonBaguette-43001.portmap.io:43001
770cfd6a-1f35-4de5-a9a2-ab894e876f1d
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encryption_key
0DD70E740CE6303F73E56E72D07F3605281C7192
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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
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 Client-built.exe
Files
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Client-built.exe.exe windows:4 windows 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