Analysis

  • max time kernel
    138s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05-03-2023 23:29

General

  • Target

    x2xFapxhdTcU.exe

  • Size

    138KB

  • MD5

    f24c263ecf54962af2a2ae5e7f5b139e

  • SHA1

    ae62b6a2729f55c70e682247b1eafe09c4e03890

  • SHA256

    e37964ebdb10d9e06d3aa47b5ca1500571e13f582d50add487110c7abb26a76c

  • SHA512

    efb571f03a200b2038f19dae2866e0e68e510b84b040b3a438cf6be2850ce7305cd1635fd9bac6321a7203a35492483dffa07b0d72308c659e3e724023ae691b

  • SSDEEP

    3072:+bvB5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/YI:+bvPS7BqjjYHdrqkL/

Malware Config

Extracted

Family

arrowrat

Botnet

JB0QWL

C2

antgobec.duckdns.org:1338

Mutex

3PDHTO

Signatures

  • ArrowRat

    Remote access tool with various capabilities first seen in late 2021.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 15 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\x2xFapxhdTcU.exe
    "C:\Users\Admin\AppData\Local\Temp\x2xFapxhdTcU.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1432
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1416
      • C:\Windows\system32\ctfmon.exe
        ctfmon.exe
        3⤵
          PID:2016
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
        2⤵
          PID:1764
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
          2⤵
            PID:768
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
            2⤵
              PID:804
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
              2⤵
                PID:1636
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
                2⤵
                  PID:900
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
                  2⤵
                    PID:520
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
                    2⤵
                      PID:836
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
                      2⤵
                        PID:588
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
                        2⤵
                          PID:1176
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" JB0QWL antgobec.duckdns.org 1338 3PDHTO
                          2⤵
                            PID:1340
                        • C:\Windows\system32\AUDIODG.EXE
                          C:\Windows\system32\AUDIODG.EXE 0x580
                          1⤵
                          • Suspicious use of AdjustPrivilegeToken
                          PID:1628

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/1416-56-0x0000000004060000-0x0000000004061000-memory.dmp

                          Filesize

                          4KB

                        • memory/1416-57-0x0000000004060000-0x0000000004061000-memory.dmp

                          Filesize

                          4KB

                        • memory/1416-61-0x0000000002AF0000-0x0000000002B00000-memory.dmp

                          Filesize

                          64KB

                        • memory/1432-54-0x0000000000E90000-0x0000000000EB8000-memory.dmp

                          Filesize

                          160KB