General
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Target
Client-built.exe
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Size
3.1MB
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MD5
d9d2f3f3c982bc80c1bcb48a57c9d50b
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SHA1
ceae970e826fe18f86334df80e369eb048855f46
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SHA256
03055e3bc47f74cb752766066d37bbc32a7d727e8e8de1de1f780c438d9fb1f7
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SHA512
48ed7dc971f134a0f7dd651157ae74a71ea393b458a19f20cbf1e17a017eb5ab18bf083ca46ff7e950ceb7daebe52484ada180fa19fdd1a00d2863977904dd3b
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SSDEEP
49152:SvyI22SsaNYfdPBldt698dBcjHxwWEGzvk/ZSMoGdkdETHHB72eh2NT:Svf22SsaNYfdPBldt6+dBcjHxwZlU
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.116:4782
97ed6976-1ac2-4546-9b3d-21da0d014a4b
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encryption_key
9C4EA8E0DF89BE6122CBCA3F1DCCDAE968F75366
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
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