General
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Target
Client-built.exe
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Size
3.1MB
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MD5
cb303e914569c62b60c9a5a76bc5541e
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SHA1
083465ccd4440106b6c389d566cd027df3ce6229
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SHA256
40738b4229f48e129ff256c7b37b1005c95647d63b63cc99b59fe75694df314a
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SHA512
546f0c00b09a1f66e6430d9444cfeb4d18a5f58591e5e0170918edb14bfda6ca3d914b21ade2a15788a5662854ebb959aa79f176cf29497e184384781e53b958
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SSDEEP
49152:CvyI22SsaNYfdPBldt698dBcjH//j4hKboGddGOTHHB72eh2NT:Cvf22SsaNYfdPBldt6+dBcjHnj4hmt
Malware Config
Extracted
quasar
1.4.1
Office04
205.234.193.208:4782
5b5f36aa-c2fa-4faa-b00e-9ae4a219120b
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encryption_key
187ACE5C73483AF98BF5C2E3407DF08D3AA8F22B
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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