General
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Target
Client-built.exe
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Size
3.1MB
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MD5
cc4f42c9e614d30943e6a641bf152b3e
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SHA1
d17cd99e858bc19fa6610c38625bb0acc98285da
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SHA256
4de42e0496a9862f14414c78d4d6b655aca55fb2064ece559ba8c36a8d9d6979
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SHA512
0625ca8d497b7b9b8196c26be4c5964e53c33017f599cfd770bfedb1352fbc473db13761103fe96c39e7f483c9a3ffd97070ddc3c266929c3a2d0dfbc8d0f62d
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SSDEEP
49152:rveI22SsaNYfdPBldt698dBcjHf9gKMcroGdulTHHB72eh2NT:rvT22SsaNYfdPBldt6+dBcjHVgKMQ
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.100.78:4782
e6857516-29c9-4956-99ed-473a1d549175
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encryption_key
D799753C7C07E74DE68398F5B1F1AD3AEE613FDC
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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