General
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Target
Client-built.exe
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Size
3.1MB
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MD5
aef93f1ada23ca5c7f2b0ab37cdf6332
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SHA1
3a4744c2479a901bd6ed2f374a72c1d0fedeb7ef
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SHA256
721ad1696a3326da0fa7ba0aab224555337dea8d12b91fefe2e9b98299d012f4
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SHA512
a1fa3615d9156626bbf56f2b591e18a064eff9b7d5d33b28c610705ae3b219a44cbe61bc5b4ad416d99ad799a028e5b70aef6732ff84e6bfcc7838012fbfb686
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SSDEEP
49152:KvyI22SsaNYfdPBldt698dBcjHW63bwwearKOoGd0UNTHHB72eh2NT:Kvf22SsaNYfdPBldt6+dBcjHvUwXE
Malware Config
Extracted
quasar
1.4.1
get ran<3
147.185.221.23:16979
b2fffcaa-162c-41dd-9bdb-7a5cc2e91689
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encryption_key
1E88A98FD1D3B7400AC4FF93631C3EF95BB1B803
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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-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