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Analysis
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max time kernel
119s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05/11/2024, 08:59
Behavioral task
behavioral1
Sample
977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe
Resource
win7-20240903-en
General
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Target
977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe
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Size
110KB
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MD5
ad2948036226162a59dc834bc1e14d60
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SHA1
8c7ad8bfab90cb7c1d154ceb7718009207caa62a
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SHA256
977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4
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SHA512
75a811ad021e50e55aacdf4b689358af4ee93fbd03274cd58a1c6561f4bbd0a24dbe5964873d171c210c131c8c0afaaa4c315ec59762fc704cad14d1a61e1159
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SSDEEP
1536:IiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:IiyvRmDLs/ZrwWJjAqGcRJ2hg
Malware Config
Signatures
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Tinba family
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A388EA99 = "C:\\Users\\Admin\\AppData\\Roaming\\A388EA99\\bin.exe" winver.exe -
resource yara_rule behavioral2/memory/4280-0-0x0000000000400000-0x000000000041E000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 3404 2076 WerFault.exe 87 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2076 winver.exe 2076 winver.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3436 Explorer.EXE Token: SeCreatePagefilePrivilege 3436 Explorer.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2076 winver.exe -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3436 Explorer.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4280 wrote to memory of 2076 4280 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe 87 PID 4280 wrote to memory of 2076 4280 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe 87 PID 4280 wrote to memory of 2076 4280 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe 87 PID 4280 wrote to memory of 2076 4280 977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe 87 PID 2076 wrote to memory of 3436 2076 winver.exe 56 PID 2076 wrote to memory of 2556 2076 winver.exe 44
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2556
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3436 -
C:\Users\Admin\AppData\Local\Temp\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe"C:\Users\Admin\AppData\Local\Temp\977ce1ef29b147ac14519b3077ff04bb583cf370614cc3f7f69e794ba82087d4N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4280 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2076 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 3524⤵
- Program crash
PID:3404
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2076 -ip 20761⤵PID:4072