Analysis
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max time kernel
181s -
max time network
187s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
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submitted
25-11-2022 22:26
General
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Target
yichun_wmn.exe
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Size
1.2MB
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MD5
6c1c3e867357b1fc3f79071ed029f133
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SHA1
8ed4718de573dc38633195b584d256cb059f47ce
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SHA256
7f252e395d7fa74a869f6f21e414a195135cfb930bfb15fcb48c8575053767e3
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SHA512
93a9e34ada8d010a1c43812f22c2e5dbf4761bc08411e64e173502b43be00d0ca80974ee075ea0deeb9707d58365a3631875f263490612ee5e0929abf9498993
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SSDEEP
24576:F2B3IFaREHU1LNJ71SuA1zW0jhFG4Q/+3/tliFHEVA3fRrgnG3J:F2iU1LNKXXjCm3/OFGufMm
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
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UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Loads dropped DLL 1 IoCs
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of SetWindowsHookEx 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\yichun_wmn.exe"C:\Users\Admin\AppData\Local\Temp\yichun_wmn.exe"1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
42KB
MD5d7d0661ef693c8aceebcc52ffc620c9b
SHA19b6f144ab58736d7ae685985727572a008d28fbe
SHA256dbeceadf49a2e2a33af612d08938cd78951eea7038e09952c032bd70dd25a1f4
SHA512babed456f3b994ce915a310d29b303dfb870c6474a750fc04f695d71fa51394869c2e578d5d33e750c83ee161b77c1a1e459b5e9813b12e83bd7ab8f2b080c6a
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Filesize
8KB
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Filesize
280KB