General
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Target
PVO Autojoiner.exe
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Size
3.1MB
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MD5
723bc2697fd72e80b2805cdee9fc3fb0
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SHA1
50bc5d7e3839170ffd589edcf87e5218620925e2
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SHA256
a2ca5a4b0b160064ba09cee8fad4597f1764e2e4e884702c7faaeb8e8bd0448d
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SHA512
0bfd01aaa610b9828f66b1cb45ed2eac12f048ff0bc9f41882d5bfc6170159d84657ec06c0f26e540a22099f0354ae7650c98d4088e422398edd2cbcdf4f8acf
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SSDEEP
49152:Cvkt62XlaSFNWPjljiFa2RoUYIn4Lwmzh9oGdv+THHB72eh2NT:Cv462XlaSFNWPjljiFXRoUYIn4L1
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.2.37:4782
d7750a6e-0b05-4172-9502-40fc6e008c4f
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encryption_key
84BD8B9E6A3C677EC428D3A04B23825F9633D0D9
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install_name
Powershell.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Powershell
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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 PVO Autojoiner.exe
Files
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PVO Autojoiner.exe.exe windows:4 windows x86 arch:x86
Password: 7890
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