General
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Target
Client-built.exe
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Size
3.1MB
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MD5
ff109ac27955a98afb5654e2a60ae88c
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SHA1
c211375bd068d5fa44975af3e37bb39f80ed2b03
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SHA256
68b52e3b8059ac395391480ee05380bc45f150356e03e92bf99ba5ffb202f08b
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SHA512
8bed75e15768bce51b52828dd443249c2b6c3c426f880b57df0958477a986786b5fa99739356e72f94f03b026ac3ca64c699dd6511079f51bc037f4598aea358
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SSDEEP
49152:evkt62XlaSFNWPjljiFa2RoUYIEuW/QBxB2oGdhTHHB72eh2NT:ev462XlaSFNWPjljiFXRoUYIs/v
Malware Config
Extracted
quasar
1.4.1
Office04
98.218.3.74:4782
50e9068f-e8d9-4363-bf89-859954325430
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encryption_key
3F9AC61EC3C7AFC94074BECB23299DD92BEDC742
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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