Analysis

  • max time kernel
    137s
  • 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 23:35

General

  • Target

    bJyy.exe

  • Size

    138KB

  • MD5

    bdc72c4851b8543f9f57215f1a3fc336

  • SHA1

    b04f8b232040200d68a75400c5e160d0f61387f7

  • SHA256

    59a734c5ae920f5791ace8728981fffe7c9f9270fe26c27c9482dde038dd398c

  • SHA512

    884be565c02616d79feea31aaa2d13926e9fe530ed656a31595d2f295c346867cf4f4c313350b695d3f8b30e56c625995e360e50820bccc605e915ab3cd68599

  • SSDEEP

    3072:6bvu5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/Y/:6bvqS7BqjjYHdrqkL/

Malware Config

Extracted

Family

arrowrat

Botnet

0XU9G7

C2

pandora2425.duckdns.org:2425

Mutex

JGLG6C

Signatures

  • ArrowRat

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

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Program crash 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of WriteProcessMemory 49 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\bJyy.exe
    "C:\Users\Admin\AppData\Local\Temp\bJyy.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2020
    • 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:1196
      • C:\Windows\system32\ctfmon.exe
        ctfmon.exe
        3⤵
          PID:1488
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
        2⤵
          PID:2032
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
          2⤵
            PID:2036
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
            2⤵
              PID:888
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
              2⤵
                PID:876
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
                2⤵
                  PID:960
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
                  2⤵
                    PID:268
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
                    2⤵
                      PID:768
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
                      2⤵
                        PID:1476
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
                        2⤵
                          PID:1472
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 0XU9G7 pandora2425.duckdns.org 2425 JGLG6C
                          2⤵
                            PID:1916
                          • C:\Windows\system32\WerFault.exe
                            C:\Windows\system32\WerFault.exe -u -p 2020 -s 668
                            2⤵
                            • Program crash
                            PID:1720
                        • C:\Windows\system32\AUDIODG.EXE
                          C:\Windows\system32\AUDIODG.EXE 0x54c
                          1⤵
                          • Suspicious use of AdjustPrivilegeToken
                          PID:1644

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/1196-55-0x0000000003EE0000-0x0000000003EE1000-memory.dmp

                          Filesize

                          4KB

                        • memory/1196-56-0x0000000003EE0000-0x0000000003EE1000-memory.dmp

                          Filesize

                          4KB

                        • memory/1196-60-0x0000000002B70000-0x0000000002B80000-memory.dmp

                          Filesize

                          64KB

                        • memory/2020-54-0x0000000001370000-0x0000000001398000-memory.dmp

                          Filesize

                          160KB