Overview

overview

10

Static

static

7117ab5db2...d0.exe

windows7-x64

10

7117ab5db2...d0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    153s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 12:25

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General

  • Target
    7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0.exe
  • Size 288KB
  • Sample221107-pl3hjafec5
  • SHA256 7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
evasionpersistenceransomwarespywarestealertrojanupx

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 2 TTPs 3 IoCs
    evasion
  • Modifies security service 2 TTPs 3 IoCs
    evasion
  • UAC bypass 3 TTPs 1 IoCs
    evasiontrojan
  • Windows security bypass 2 TTPs 6 IoCs
    evasiontrojan
  • Disables Task Manager via registry modification
    evasion
  • Executes dropped EXE 4 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0.exe
    "C:\Users\Admin\AppData\Local\Temp\7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4684 -s 456
      2⤵
      • Program crash
      PID:4708
    • C:\Users\Admin\AppData\Local\Temp\7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0.exe
      C:\Users\Admin\AppData\Local\Temp\7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0.exe
      2⤵
      • Checks computer location settings
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Users\Admin\AppData\Local\Temp\SzfBlVkq.exe
        "C:\Users\Admin\AppData\Local\Temp\SzfBlVkq.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 456
          4⤵
          • Program crash
          PID:4896
        • C:\Users\Admin\AppData\Local\Temp\SzfBlVkq.exe
          C:\Users\Admin\AppData\Local\Temp\SzfBlVkq.exe
          4⤵
          • Modifies WinLogon for persistence
          • Modifies firewall policy service
          • Modifies security service
          • UAC bypass
          • Windows security bypass
          • Executes dropped EXE
          • Checks computer location settings
          • Drops startup file
          • Windows security modification
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:2300
          • C:\Users\Admin\AppData\Local\Temp\rrDffnxNuq.exe
            "C:\Users\Admin\AppData\Local\Temp\rrDffnxNuq.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:204
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 204 -s 464
              6⤵
              • Program crash
              PID:480
            • C:\Users\Admin\AppData\Local\Temp\rrDffnxNuq.exe
              C:\Users\Admin\AppData\Local\Temp\rrDffnxNuq.exe
              6⤵
              • Executes dropped EXE
              • Modifies extensions of user files
              • Drops file in Program Files directory
              • Suspicious use of AdjustPrivilegeToken
              PID:760
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4684 -ip 4684
    1⤵
      PID:1596
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4664 -ip 4664
      1⤵
        PID:5048
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 204 -ip 204
        1⤵
          PID:3928

        Network

              MITRE ATT&CK Enterprise v6

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              Downloads

              SzfBlVkq.exe
              • Path C:\Users\Admin\AppData\Local\Temp\SzfBlVkq.exe
              • Size 288KB
              • SHA256 7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              SzfBlVkq.exe
              • Path C:\Users\Admin\AppData\Local\Temp\SzfBlVkq.exe
              • Size 288KB
              • SHA256 7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              SzfBlVkq.exe
              • Path C:\Users\Admin\AppData\Local\Temp\SzfBlVkq.exe
              • Size 288KB
              • SHA256 7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              rrDffnxNuq.exe
              • Path C:\Users\Admin\AppData\Local\Temp\rrDffnxNuq.exe
              • Size 288KB
              • SHA256 7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              rrDffnxNuq.exe
              • Path C:\Users\Admin\AppData\Local\Temp\rrDffnxNuq.exe
              • Size 288KB
              • SHA256 7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              rrDffnxNuq.exe
              • Path C:\Users\Admin\AppData\Local\Temp\rrDffnxNuq.exe
              • Size 288KB
              • SHA256 7117ab5db22813eabff9d16ffa86dc93478aa08ed2bc634263e2449459e105d0
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              eabf088805833cefc6c952a096e1f819_9be0bf4d-f8db-4af4-be85-dc38433c9501
              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2891029575-1462575-1165213807-1000\eabf088805833cefc6c952a096e1f819_9be0bf4d-f8db-4af4-be85-dc38433c9501
              • Size 49B
              • SHA256 d5a86e74eed43221d50ac91aab58eca2a9119ad224bc58d894c2467994afd033
              • MD5 SHA1 SHA512
              Submit Download

              memory/760-161-0x0000000000400000-0x000000000041D000-memory.dmp
              Download

              memory/760-159-0x0000000000400000-0x000000000041D000-memory.dmp
              Download

              memory/2300-152-0x0000000000400000-0x000000000041D000-memory.dmp
              Download

              memory/4684-132-0x0000000000BA0000-0x0000000000BA4000-memory.dmp
              Download

              memory/4932-148-0x0000000000400000-0x000000000041D000-memory.dmp
              Download

              memory/4932-138-0x0000000000400000-0x000000000041D000-memory.dmp
              Download

              memory/4932-137-0x0000000000400000-0x000000000041D000-memory.dmp
              Download

              memory/4932-136-0x0000000000400000-0x000000000041D000-memory.dmp
              Download

              memory/4932-134-0x0000000000400000-0x000000000041D000-memory.dmp
              Download