General
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Target
ImageLoggerBuilder.exe
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Size
3.1MB
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MD5
32ee83c0da0f7c355e7600bfe40cfe89
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SHA1
9616e83a0cf27f21a561f0d3ea292254b9b685d2
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SHA256
e15a03db8ad4475fcc712d10500810aca8f925512b39c5bad6f1c1a20c6f785d
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SHA512
e5ddad8f8640ed1b514fd6f9c1817e18290ba1bcc8654f150b31fe817065f99028f79cfeea6e4145a701b38fa21b7f8b3f14c11e4084f3650957e6e424975088
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SSDEEP
49152:mvyI22SsaNYfdPBldt698dBcjHbemDmzKKoGd1THHB72eh2NT:mvf22SsaNYfdPBldt6+dBcjHbemU
Malware Config
Extracted
quasar
1.4.1
Office04
Aynamit-58285.portmap.io:58285
7d6c4039-1882-4ac3-8711-9edc060091eb
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encryption_key
B414A2AEA68C8F212513170411C6C2ACB8A1A963
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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 ImageLoggerBuilder.exe
Files
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ImageLoggerBuilder.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