Behavioral task
behavioral1
Sample
Client.exe
Resource
win7-20231215-en
General
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Target
Client.exe
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Size
3.1MB
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MD5
74da408d3e8448efca3934fa65e06244
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SHA1
77cc478ce7dc1b15bf4d8f8bd1f865810ec36dd8
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SHA256
93f4ec6466dcaee98fcc1cfef832f2709f650204d46e506c3a7e8d1524b22ab1
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SHA512
bf998f0ead6402637cc8ab354c5e32e8681fabf92c7b807999c40927c8e48e15f148f2d6e7b2011d146430ae68a3d8d6e3d3599f626fa76bccbce59a55d38547
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SSDEEP
49152:OvnI22SsaNYfdPBldt698dBcjHlsRJ6lbR3LoGd6THHB72eh2NT:OvI22SsaNYfdPBldt6+dBcjHlsRJ63
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.26:4782
299afefd-a27f-434c-a610-4fc0123e1956
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encryption_key
F67EA4CFAE36451627913052B16A82FAC47C8E15
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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
Quasar Client Startup
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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.exe
Files
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Client.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