Analysis
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max time kernel
44s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 07:29
Static task
static1
Behavioral task
behavioral1
Sample
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe
Resource
win10v2004-20220812-en
General
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Target
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe
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Size
177KB
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MD5
85d12cca6fe4acfe9f8c084b1b11cb7f
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SHA1
db9fccb5297821adc2cfc0f90b56c1bd0db99106
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SHA256
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7
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SHA512
8eeaca9eb07c8da6339e441a12e0812dcd577329694c0e12ce1c4e9b7dd4df2b07aae41387434528d2fed23b02e667ff6af472a798fe04517819085155d2b236
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SSDEEP
1536:UzgGrlZdaFC0eeDLdNRhRAeAZoNbr9rhoyK6vIg7pIVfB4nTEo+xo:U8y30e0Ld3boyK6h4fBRbo
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-84491331\\1p17r8.exe" 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\2p2qrrt = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-84491331\\1p17r8.exe" 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe -
Drops desktop.ini file(s) 1 IoCs
Processes:
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exedescription ioc process File created C:\RECYCLER\S-1-5-21-0243556031-888888379-781862338-84491331\Desktop.ini 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe -
Modifies WinLogon 2 TTPs 1 IoCs
Processes:
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-84491331\\1p17r8.exe" 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exedescription pid process target process PID 1352 set thread context of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exepid process 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 1696 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exedescription pid process target process PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1352 wrote to memory of 1696 1352 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe PID 1696 wrote to memory of 1360 1696 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe Explorer.EXE PID 1696 wrote to memory of 1360 1696 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe Explorer.EXE PID 1696 wrote to memory of 1360 1696 8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe"C:\Users\Admin\AppData\Local\Temp\8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe"C:\Users\Admin\AppData\Local\Temp\8e75399ed6d56e8b467b0a2fb22f6350fab20845b527e77a75ff9e144ffd8da7.exe"3⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1696-54-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1696-57-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1696-55-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1696-59-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1696-58-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1696-60-0x0000000000401920-mapping.dmp
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memory/1696-62-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB