Analysis
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max time kernel
42s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
25-09-2022 16:53
Static task
static1
Behavioral task
behavioral1
Sample
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe
Resource
win10v2004-20220901-en
General
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Target
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe
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Size
780KB
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MD5
712e164996f8a491ca08dd3eb4b5b16a
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SHA1
07fbb42d5168e3ce7f0aedb437e0a1cbca59ea5d
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SHA256
2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921
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SHA512
5ba44f6528907c94c0fb650dbdc0bfe7923e096961f05865f7a4ffab523d2c3e7d1bed095b69ce02cad5e830b7a5f4dccfd2e7a00ff291556259dd884023f078
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SSDEEP
12288:N8St0dbGh7Qzq95i05ymO63rcBaIiICzVcZLMAdGFRaTdlIG3pct1v1Ru9IZRtI:N8S6wNQm9hdoYVIChchnGahutXRjhI
Malware Config
Extracted
C:\Users\Admin\Desktop\how_to_recover.html
hanta@420blaze.it<br/>
http-equiv="X-UA-Compatible"
Signatures
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Disables Task Manager via registry modification
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Drops startup file 1 IoCs
Processes:
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HANTA.exe HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\hanta_ransom = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\HANTA.exe\"" HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wall.jpg" HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1700 1212 WerFault.exe HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe -
Modifies Control Panel 2 IoCs
Processes:
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\Desktop\WallpaperStyle = "1" HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\Desktop\TileWallpaper = "0" HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exepid process 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exedescription pid process Token: SeDebugPrivilege 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exedescription pid process target process PID 1212 wrote to memory of 1700 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe WerFault.exe PID 1212 wrote to memory of 1700 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe WerFault.exe PID 1212 wrote to memory of 1700 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe WerFault.exe PID 1212 wrote to memory of 1700 1212 HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Agent.gen-2756b78e9d72257067b63018ed3de4524812c60c72211288698ec78dcfc08921.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1212 -s 57362⤵
- Program crash
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1212-54-0x0000000000030000-0x00000000000FC000-memory.dmpFilesize
816KB
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memory/1212-55-0x00000000005E0000-0x00000000005E6000-memory.dmpFilesize
24KB
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memory/1212-56-0x0000000004730000-0x00000000047EE000-memory.dmpFilesize
760KB
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memory/1212-57-0x00000000004A0000-0x00000000004A6000-memory.dmpFilesize
24KB
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memory/1212-58-0x0000000075E11000-0x0000000075E13000-memory.dmpFilesize
8KB
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memory/1700-59-0x0000000000000000-mapping.dmp