Analysis
- max time kernel
120s - max time network
123s - platform
windows10_x64 - resource
win10v20210410 - submitted
08/05/2021, 06:54
Static task
static1
Behavioral task
behavioral1
Sample
34d8fd324a2531af7dfc714984c991cf.exe
Resource
win7v20210408
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
34d8fd324a2531af7dfc714984c991cf.exe
Resource
win10v20210410
0 signatures
0 seconds
General
- Target 34d8fd324a2531af7dfc714984c991cf.exe
- Size 877KB
- Sample210508-q438dbhvra
- SHA256 f0cda71528dfdf5b3fbc8af58a61aef5f9d6432c0359ab8d9df62209e6ce6d01
- MD5 34d8fd324a2531af7dfc714984c991cf
- SHA1 4b3842146c947fd23b79d1cce0f56aeb4b2fcbec
- SHA512 a38b60a0ffd28e923dab04f41b17c4e8a7d5dd5cc13d3b9c2590cdd0f298abe40cdf89fbc392a709759d65bc05e06bfbdcda3ce80a169da41f3bccebbea044b9
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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raccoon
Botnet
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1d76a465540f6a904ac9f1310fe3a3824b5b4549
Attributes
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url4cnc
https://tttttt.me/kokajakprozak
rc4.plain
rc4.plain
Signatures
- Deletes Windows Defender Definitions 2 TTPs 1 IoCs
Uses mpcmdrun utility to delete all AV definitions.
pid Process 3152 mpcmdrun.exe - Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
description pid Process procid_target PID 1160 created 2816 1160 WerFault.exe 87 - Disables Task Manager via registry modification
- Downloads MZ/PE file
- Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts updatewin2.exe - Executes dropped EXE 4 IoCs
pid Process 524 updatewin1.exe 2564 updatewin2.exe 1124 updatewin1.exe 2816 5.exe - Modifies file permissions 1 TTPs 1 IoCs
pid Process 2552 icacls.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e0de8109-4a76-4637-8cea-0591a8efacab\\34d8fd324a2531af7dfc714984c991cf.exe\" --AutoStart" 34d8fd324a2531af7dfc714984c991cf.exe - Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 8 api.2ip.ua 9 api.2ip.ua 17 api.2ip.ua - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1892 set thread context of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 2808 set thread context of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 5 IoCs
pid pid_target Process procid_target 664 2816 WerFault.exe 87 1660 2816 WerFault.exe 87 1664 2816 WerFault.exe 87 1372 2816 WerFault.exe 87 1160 2816 WerFault.exe 87 -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 34d8fd324a2531af7dfc714984c991cf.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 34d8fd324a2531af7dfc714984c991cf.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 872 34d8fd324a2531af7dfc714984c991cf.exe 872 34d8fd324a2531af7dfc714984c991cf.exe 8 34d8fd324a2531af7dfc714984c991cf.exe 8 34d8fd324a2531af7dfc714984c991cf.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 664 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1660 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1664 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe 1372 WerFault.exe - Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeRestorePrivilege 664 WerFault.exe Token: SeBackupPrivilege 664 WerFault.exe Token: SeDebugPrivilege 664 WerFault.exe Token: SeDebugPrivilege 1660 WerFault.exe Token: SeDebugPrivilege 1664 WerFault.exe Token: SeDebugPrivilege 1372 WerFault.exe Token: SeDebugPrivilege 1160 WerFault.exe Token: SeDebugPrivilege 2364 powershell.exe Token: SeDebugPrivilege 512 powershell.exe Token: SeDebugPrivilege 1960 powershell.exe - Suspicious use of WriteProcessMemory 52 IoCs
description pid Process procid_target PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 1892 wrote to memory of 872 1892 34d8fd324a2531af7dfc714984c991cf.exe 74 PID 872 wrote to memory of 2552 872 34d8fd324a2531af7dfc714984c991cf.exe 77 PID 872 wrote to memory of 2552 872 34d8fd324a2531af7dfc714984c991cf.exe 77 PID 872 wrote to memory of 2552 872 34d8fd324a2531af7dfc714984c991cf.exe 77 PID 872 wrote to memory of 2808 872 34d8fd324a2531af7dfc714984c991cf.exe 78 PID 872 wrote to memory of 2808 872 34d8fd324a2531af7dfc714984c991cf.exe 78 PID 872 wrote to memory of 2808 872 34d8fd324a2531af7dfc714984c991cf.exe 78 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 2808 wrote to memory of 8 2808 34d8fd324a2531af7dfc714984c991cf.exe 80 PID 8 wrote to memory of 524 8 34d8fd324a2531af7dfc714984c991cf.exe 83 PID 8 wrote to memory of 524 8 34d8fd324a2531af7dfc714984c991cf.exe 83 PID 8 wrote to memory of 524 8 34d8fd324a2531af7dfc714984c991cf.exe 83 PID 8 wrote to memory of 2564 8 34d8fd324a2531af7dfc714984c991cf.exe 84 PID 8 wrote to memory of 2564 8 34d8fd324a2531af7dfc714984c991cf.exe 84 PID 8 wrote to memory of 2564 8 34d8fd324a2531af7dfc714984c991cf.exe 84 PID 524 wrote to memory of 1124 524 updatewin1.exe 85 PID 524 wrote to memory of 1124 524 updatewin1.exe 85 PID 524 wrote to memory of 1124 524 updatewin1.exe 85 PID 8 wrote to memory of 2816 8 34d8fd324a2531af7dfc714984c991cf.exe 87 PID 8 wrote to memory of 2816 8 34d8fd324a2531af7dfc714984c991cf.exe 87 PID 8 wrote to memory of 2816 8 34d8fd324a2531af7dfc714984c991cf.exe 87 PID 1124 wrote to memory of 2364 1124 updatewin1.exe 94 PID 1124 wrote to memory of 2364 1124 updatewin1.exe 94 PID 1124 wrote to memory of 2364 1124 updatewin1.exe 94 PID 1124 wrote to memory of 512 1124 updatewin1.exe 96 PID 1124 wrote to memory of 512 1124 updatewin1.exe 96 PID 1124 wrote to memory of 512 1124 updatewin1.exe 96 PID 512 wrote to memory of 1960 512 powershell.exe 98 PID 512 wrote to memory of 1960 512 powershell.exe 98 PID 512 wrote to memory of 1960 512 powershell.exe 98 PID 1124 wrote to memory of 3152 1124 updatewin1.exe 100 PID 1124 wrote to memory of 3152 1124 updatewin1.exe 100 PID 1124 wrote to memory of 1820 1124 updatewin1.exe 102 PID 1124 wrote to memory of 1820 1124 updatewin1.exe 102 PID 1124 wrote to memory of 1820 1124 updatewin1.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe"C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1892 -
C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe"C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe"2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:872 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\e0de8109-4a76-4637-8cea-0591a8efacab" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2552
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C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe"C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe"C:\Users\Admin\AppData\Local\Temp\34d8fd324a2531af7dfc714984c991cf.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:8 -
C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\updatewin1.exe"C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\updatewin1.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:524 -
C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\updatewin1.exe"C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\updatewin1.exe" --Admin6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command Set-ExecutionPolicy -Scope CurrentUser RemoteSigned7⤵
- Suspicious use of AdjustPrivilegeToken
PID:2364
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -NoProfile -ExecutionPolicy Bypass -Command "& {Start-Process PowerShell -ArgumentList '-NoProfile -ExecutionPolicy Bypass -File ""C:\Users\Admin\AppData\Local\script.ps1""' -Verb RunAs}"7⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:512 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\script.ps18⤵
- Suspicious use of AdjustPrivilegeToken
PID:1960
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C:\Program Files\Windows Defender\mpcmdrun.exe"C:\Program Files\Windows Defender\mpcmdrun.exe" -removedefinitions -all7⤵
- Deletes Windows Defender Definitions
PID:3152
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat""7⤵PID:1820
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C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\updatewin2.exe"C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\updatewin2.exe"5⤵
- Drops file in Drivers directory
- Executes dropped EXE
PID:2564
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C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\5.exe"C:\Users\Admin\AppData\Local\55008c59-e80c-48be-90c1-9cd63ef8188f\5.exe"5⤵
- Executes dropped EXE
PID:2816 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 7486⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:664
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 8486⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1660
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 8966⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1664
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 9086⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1372
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 8366⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:1160
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