Analysis

  • max time kernel
    37s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 15:04

General

  • Target

    b4911217679701fd9f307170d4ce81a70467aa27126316644e202bd20d547551.exe

  • Size

    261KB

  • MD5

    abf33ab05d3f2b8c19018364def0861b

  • SHA1

    50b043c9ba3fa99ac3e968e2deedbd5323f21eff

  • SHA256

    b4911217679701fd9f307170d4ce81a70467aa27126316644e202bd20d547551

  • SHA512

    f0709f0dd6bdd5813a0a684ac603cecdb9e43614608d8b09450365c5b7d7176b5e440142d2e5e5806ab28e92f65e57f982589365b2780b5fe2742bb89c0cde1a

  • SSDEEP

    6144:MO8Ix8uaN7WmevRgAwlZpcz0t2YVFV+vTzs+OO2Mm:MO8I8WmevYo3YVz+vXsLO2/

Score
8/10

Malware Config

Signatures

  • Sets file execution options in registry 2 TTPs 2 IoCs
  • Checks for any installed AV software in registry 1 TTPs 2 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 7 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4911217679701fd9f307170d4ce81a70467aa27126316644e202bd20d547551.exe
    "C:\Users\Admin\AppData\Local\Temp\b4911217679701fd9f307170d4ce81a70467aa27126316644e202bd20d547551.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Sets file execution options in registry
      • Checks for any installed AV software in registry
      • Drops desktop.ini file(s)
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x64370839" /TR "C:\ProgramData\ghtsyuabnjagsfsha\rjrwzmzis.exe" /RL HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:1704
      • C:\Windows\SysWOW64\WerFault.exe
        "C:\Windows\SysWOW64\WerFault.exe"
        3⤵
          PID:1048

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Security Software Discovery

    1
    T1063

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1048-79-0x0000000077530000-0x00000000776B1000-memory.dmp
      Filesize

      1.5MB

    • memory/1048-78-0x0000000000180000-0x00000000001FA000-memory.dmp
      Filesize

      488KB

    • memory/1048-77-0x0000000077530000-0x00000000776B1000-memory.dmp
      Filesize

      1.5MB

    • memory/1048-76-0x0000000000180000-0x00000000001FA000-memory.dmp
      Filesize

      488KB

    • memory/1048-74-0x0000000000000000-mapping.dmp
    • memory/1592-55-0x00000000744B0000-0x0000000074A5B000-memory.dmp
      Filesize

      5.7MB

    • memory/1592-54-0x0000000074FB1000-0x0000000074FB3000-memory.dmp
      Filesize

      8KB

    • memory/1592-65-0x00000000744B0000-0x0000000074A5B000-memory.dmp
      Filesize

      5.7MB

    • memory/1704-73-0x0000000000000000-mapping.dmp
    • memory/1724-59-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1724-63-0x000000000040120A-mapping.dmp
    • memory/1724-69-0x00000000004C0000-0x000000000050B000-memory.dmp
      Filesize

      300KB

    • memory/1724-70-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1724-72-0x00000000000B0000-0x00000000000BB000-memory.dmp
      Filesize

      44KB

    • memory/1724-71-0x00000000004C0000-0x000000000050B000-memory.dmp
      Filesize

      300KB

    • memory/1724-66-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1724-62-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1724-75-0x00000000004C0000-0x000000000050B000-memory.dmp
      Filesize

      300KB

    • memory/1724-61-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1724-58-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1724-57-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1724-56-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB