Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240705-en
General
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Target
Client-built.exe
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Size
3.4MB
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MD5
58587e08cc617fb97526bfbac57b62e8
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SHA1
bd38f26aa6541b07a510d0a064b5c7235c9c8a5b
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SHA256
7a85eb78ce7c9487c6d2aa0ffcb569687accf73377cc1e6ce8123a15345cd7aa
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SHA512
b0ecdbe15b1fd4d2e190c285c14d1e454e9192105698f0d89952999a13b2b238128326eaf243e29c13c8d1c1e8372c7b6d735c92374921e2740fdd91d91da525
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SSDEEP
49152:k6LFXL5Z8hlPKxXava0n+g5I2j1THHB72eh2NT1Yq:k6p5Z8hlPKxXava0+KOY
Malware Config
Extracted
quasar
1.4.1
RAN
147.185.221.22:10340
541c4371-7091-40eb-8fd1-2973b63dd560
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encryption_key
45428D99D260D9C913112BDB878C52EA244CE0DB
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install_name
Windows Host Process.exe
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log_directory
Windows-Logs
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reconnect_delay
3000
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startup_key
Windows Host Process
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subdirectory
Windows
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: 234KB - Virtual size: 233KB
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