Analysis

  • max time kernel
    115s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11-03-2021 13:03

General

  • Target

    CLEW enquiry 2021.PDF.exe

  • Size

    471KB

  • MD5

    54354bddb2f478a548edda9ff940f0d1

  • SHA1

    539d0510ce7e27cbf18e30952f6ae151cea8eb1e

  • SHA256

    6d72e21f8eed71f706041b12c6efaa66fd12ad213a48415f682a19b0f3e46f17

  • SHA512

    788866f1da8e8fcacefd58be1b144d23cdb69c0132648edf7a79f394d4eb7fe405deeab829be583674943ba2f2c3795da6aeabd6d4dbbf3d6233c04b590ce8dc

Malware Config

Extracted

Family

warzonerat

C2

79.134.225.26:3141

Signatures

  • WarzoneRat, AveMaria

    WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:548
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HLVbWXuQpLZcU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8AE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:300
    • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
      "{path}"
      2⤵
        PID:516
      • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
        "{path}"
        2⤵
          PID:460
        • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
          "{path}"
          2⤵
          • Loads dropped DLL
          PID:980

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/548-8-0x0000000007E00000-0x0000000007E72000-memory.dmp

        Filesize

        456KB

      • memory/548-9-0x0000000000A30000-0x0000000000A62000-memory.dmp

        Filesize

        200KB

      • memory/548-2-0x0000000073F20000-0x000000007460E000-memory.dmp

        Filesize

        6.9MB

      • memory/548-7-0x000000007EF40000-0x000000007EF41000-memory.dmp

        Filesize

        4KB

      • memory/548-6-0x0000000000350000-0x0000000000352000-memory.dmp

        Filesize

        8KB

      • memory/548-5-0x00000000049F0000-0x00000000049F1000-memory.dmp

        Filesize

        4KB

      • memory/548-3-0x0000000000250000-0x0000000000251000-memory.dmp

        Filesize

        4KB

      • memory/980-12-0x0000000000400000-0x000000000055E000-memory.dmp

        Filesize

        1.4MB

      • memory/980-14-0x0000000076071000-0x0000000076073000-memory.dmp

        Filesize

        8KB

      • memory/980-15-0x0000000000400000-0x000000000055E000-memory.dmp

        Filesize

        1.4MB

      • memory/980-16-0x0000000003260000-0x00000000032E4000-memory.dmp

        Filesize

        528KB