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General
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Target
Client-built.exe
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Size
3.1MB
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MD5
d5f77af0c3259e8dfe5f630031ec4a34
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SHA1
97345887a00ae86149ffe649bb8b8210d3d89f29
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SHA256
9e17c6b9d15cd1ff039cd7aac08fe41a07522469a0b2cd9826b4695529d3594f
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SHA512
e93d86be4df1e3de06916d861f34817613c69890400136ae98bc9fc49bccf22caa69872e51f5f630584adbb6b0cfc364724c557c43161a887c98d0ee63eddd0c
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SSDEEP
49152:mvFt62XlaSFNWPjljiFa2RoUYIxixNESEHk/iHLoGdmTHHB72eh2NT:mv362XlaSFNWPjljiFXRoUYIAxCr
Malware Config
Extracted
quasar
1.4.1
slave
192.168.0.1:7680
fe472357-144d-4a3a-8e1d-9ef513643cc1
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encryption_key
5E806E3CE72868F0BCCBB7C901531979B646D78D
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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
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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