Analysis

  • max time kernel
    164s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2022, 16:00

General

  • Target
    3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4.exe
  • Size 1016KB
  • Sample221121-tf4kvsge84
  • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 4 IoCs
  • UAC bypass 3 TTPs 13 IoCs
  • Adds policy Run key to start application 2 TTPs 30 IoCs
  • Disables RegEdit via registry modification 6 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 64 IoCs
  • Checks whether UAC is enabled 1 TTPs 8 IoCs
  • Looks up external IP address via web service 7 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 32 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 32 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4.exe
    "C:\Users\Admin\AppData\Local\Temp\3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\grrfdxtjqbb.exe
      "C:\Users\Admin\AppData\Local\Temp\grrfdxtjqbb.exe" "c:\users\admin\appdata\local\temp\3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4.exe*"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4224
      • C:\Users\Admin\AppData\Local\Temp\yiqqxln.exe
        "C:\Users\Admin\AppData\Local\Temp\yiqqxln.exe" "-C:\Users\Admin\AppData\Local\Temp\xqhqgdoavzpunqpq.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:4644
      • C:\Users\Admin\AppData\Local\Temp\yiqqxln.exe
        "C:\Users\Admin\AppData\Local\Temp\yiqqxln.exe" "-C:\Users\Admin\AppData\Local\Temp\xqhqgdoavzpunqpq.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System policy modification
        PID:3984
    • C:\Users\Admin\AppData\Local\Temp\grrfdxtjqbb.exe
      "C:\Users\Admin\AppData\Local\Temp\grrfdxtjqbb.exe" "c:\users\admin\appdata\local\temp\3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4.exe"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:4600

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ayuidfvmmvqaygkqqtrnb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ayuidfvmmvqaygkqqtrnb.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        eyqarpbokpgmgkkmi.exe

        • Path C:\Users\Admin\AppData\Local\Temp\eyqarpbokpgmgkkmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        grrfdxtjqbb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\grrfdxtjqbb.exe
        • Size 320KB
        • SHA256 cceb499ff7d0b20ec81afaf7e52d7ee9bef1f9c3716774e226e8251519616640
        • MD5 SHA1 SHA512 SSDEEP

        grrfdxtjqbb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\grrfdxtjqbb.exe
        • Size 320KB
        • SHA256 cceb499ff7d0b20ec81afaf7e52d7ee9bef1f9c3716774e226e8251519616640
        • MD5 SHA1 SHA512 SSDEEP

        grrfdxtjqbb.exe

        • Path C:\Users\Admin\AppData\Local\Temp\grrfdxtjqbb.exe
        • Size 320KB
        • SHA256 cceb499ff7d0b20ec81afaf7e52d7ee9bef1f9c3716774e226e8251519616640
        • MD5 SHA1 SHA512 SSDEEP

        lidqklaqpxraxehmlnkf.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lidqklaqpxraxehmlnkf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        nibmedqebhzgbghkhh.exe

        • Path C:\Users\Admin\AppData\Local\Temp\nibmedqebhzgbghkhh.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        rqncybsklvrcbkpwxbaxmi.exe

        • Path C:\Users\Admin\AppData\Local\Temp\rqncybsklvrcbkpwxbaxmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        xqhqgdoavzpunqpq.exe

        • Path C:\Users\Admin\AppData\Local\Temp\xqhqgdoavzpunqpq.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        yiqqxln.exe

        • Path C:\Users\Admin\AppData\Local\Temp\yiqqxln.exe
        • Size 704KB
        • SHA256 c8389454a15c9fea797215a8b3446b7edd6481b6c820330f8443134ce27cd38d
        • MD5 SHA1 SHA512 SSDEEP

        yiqqxln.exe

        • Path C:\Users\Admin\AppData\Local\Temp\yiqqxln.exe
        • Size 704KB
        • SHA256 c8389454a15c9fea797215a8b3446b7edd6481b6c820330f8443134ce27cd38d
        • MD5 SHA1 SHA512 SSDEEP

        yiqqxln.exe

        • Path C:\Users\Admin\AppData\Local\Temp\yiqqxln.exe
        • Size 704KB
        • SHA256 c8389454a15c9fea797215a8b3446b7edd6481b6c820330f8443134ce27cd38d
        • MD5 SHA1 SHA512 SSDEEP

        yuoatthwubucyegkijf.exe

        • Path C:\Users\Admin\AppData\Local\Temp\yuoatthwubucyegkijf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        ayuidfvmmvqaygkqqtrnb.exe

        • Path C:\Windows\SysWOW64\ayuidfvmmvqaygkqqtrnb.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        eyqarpbokpgmgkkmi.exe

        • Path C:\Windows\SysWOW64\eyqarpbokpgmgkkmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        lidqklaqpxraxehmlnkf.exe

        • Path C:\Windows\SysWOW64\lidqklaqpxraxehmlnkf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        nibmedqebhzgbghkhh.exe

        • Path C:\Windows\SysWOW64\nibmedqebhzgbghkhh.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        rqncybsklvrcbkpwxbaxmi.exe

        • Path C:\Windows\SysWOW64\rqncybsklvrcbkpwxbaxmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        xqhqgdoavzpunqpq.exe

        • Path C:\Windows\SysWOW64\xqhqgdoavzpunqpq.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        yuoatthwubucyegkijf.exe

        • Path C:\Windows\SysWOW64\yuoatthwubucyegkijf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        ayuidfvmmvqaygkqqtrnb.exe

        • Path C:\Windows\ayuidfvmmvqaygkqqtrnb.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        ayuidfvmmvqaygkqqtrnb.exe

        • Path C:\Windows\ayuidfvmmvqaygkqqtrnb.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        ayuidfvmmvqaygkqqtrnb.exe

        • Path C:\Windows\ayuidfvmmvqaygkqqtrnb.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        eyqarpbokpgmgkkmi.exe

        • Path C:\Windows\eyqarpbokpgmgkkmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        eyqarpbokpgmgkkmi.exe

        • Path C:\Windows\eyqarpbokpgmgkkmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        eyqarpbokpgmgkkmi.exe

        • Path C:\Windows\eyqarpbokpgmgkkmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        lidqklaqpxraxehmlnkf.exe

        • Path C:\Windows\lidqklaqpxraxehmlnkf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        lidqklaqpxraxehmlnkf.exe

        • Path C:\Windows\lidqklaqpxraxehmlnkf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        lidqklaqpxraxehmlnkf.exe

        • Path C:\Windows\lidqklaqpxraxehmlnkf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        nibmedqebhzgbghkhh.exe

        • Path C:\Windows\nibmedqebhzgbghkhh.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        nibmedqebhzgbghkhh.exe

        • Path C:\Windows\nibmedqebhzgbghkhh.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        nibmedqebhzgbghkhh.exe

        • Path C:\Windows\nibmedqebhzgbghkhh.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        rqncybsklvrcbkpwxbaxmi.exe

        • Path C:\Windows\rqncybsklvrcbkpwxbaxmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        rqncybsklvrcbkpwxbaxmi.exe

        • Path C:\Windows\rqncybsklvrcbkpwxbaxmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        rqncybsklvrcbkpwxbaxmi.exe

        • Path C:\Windows\rqncybsklvrcbkpwxbaxmi.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        xqhqgdoavzpunqpq.exe

        • Path C:\Windows\xqhqgdoavzpunqpq.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        xqhqgdoavzpunqpq.exe

        • Path C:\Windows\xqhqgdoavzpunqpq.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        xqhqgdoavzpunqpq.exe

        • Path C:\Windows\xqhqgdoavzpunqpq.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        yuoatthwubucyegkijf.exe

        • Path C:\Windows\yuoatthwubucyegkijf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        yuoatthwubucyegkijf.exe

        • Path C:\Windows\yuoatthwubucyegkijf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP

        yuoatthwubucyegkijf.exe

        • Path C:\Windows\yuoatthwubucyegkijf.exe
        • Size 1016KB
        • SHA256 3657fbab055c2d7891943a2764492ac2d681a5f332073a9483407c0543db7aa4
        • MD5 SHA1 SHA512 SSDEEP