General
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Target
app.exe
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Size
3.1MB
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MD5
96725e16e199ccabc7df0991ff45cb77
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SHA1
6a7a99e359c24a57073a86bd097ce21e38053c77
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SHA256
3a9f968d8a167cb185e8076147504f71f3888e8fdf107d19953d279d99610818
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SHA512
0ef3aeb4c996a3aa27e9fa00f9f8fecf668ba8d8b736e9452ea6b060054cfbf38b0dd063112a618cfb2f050b6ad593e6f161bafc9514b7a0c44359b87498ae90
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SSDEEP
49152:uvWI22SsaNYfdPBldt698dBcjHfLxNESE4k/imLoGd0THHB72eh2NT:uv722SsaNYfdPBldt6+dBcjHTxDo
Malware Config
Extracted
quasar
1.4.1
Mine
142.126.66.84:7000
a655642f-990d-4dee-888d-99ce58fc79b2
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encryption_key
92470F4731518ABFA77DC89068544FB7E7B7C459
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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 app.exe
Files
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app.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