Overview

overview

10

Static

static

10

arrow/0caa...bd.exe

windows7-x64

10

arrow/0caa...bd.exe

windows10-2004-x64

10

arrow/150c...0a.exe

windows7-x64

10

arrow/150c...0a.exe

windows10-2004-x64

10

arrow/17a7...ff.exe

windows7-x64

10

arrow/17a7...ff.exe

windows10-2004-x64

10

arrow/2380...0c.exe

windows7-x64

10

arrow/2380...0c.exe

windows10-2004-x64

10

arrow/2fb8...ee.exe

windows7-x64

3

arrow/2fb8...ee.exe

windows10-2004-x64

7

arrow/3dbd...fb.exe

windows7-x64

10

arrow/3dbd...fb.exe

windows10-2004-x64

10

arrow/4a09...07.exe

windows7-x64

10

arrow/4a09...07.exe

windows10-2004-x64

10

arrow/4c4d...a5.exe

windows7-x64

3

arrow/4c4d...a5.exe

windows10-2004-x64

7

arrow/54a0...24.exe

windows7-x64

10

arrow/54a0...24.exe

windows10-2004-x64

10

arrow/59a7...8c.exe

windows7-x64

10

arrow/59a7...8c.exe

windows10-2004-x64

10

arrow/5a45...7c.exe

windows7-x64

10

arrow/5a45...7c.exe

windows10-2004-x64

10

arrow/5d57...92.exe

windows7-x64

10

arrow/5d57...92.exe

windows10-2004-x64

10

arrow/6540...5e.exe

windows7-x64

10

arrow/6540...5e.exe

windows10-2004-x64

10

arrow/8a3d...bc.exe

windows7-x64

10

arrow/8a3d...bc.exe

windows10-2004-x64

10

arrow/a192...71.exe

windows7-x64

10

arrow/a192...71.exe

windows10-2004-x64

7

arrow/b20d...3f.exe

windows7-x64

10

arrow/b20d...3f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    04-05-2023 12:31

Sharing

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General

  • Target

    arrow/b20df532e15674feb9da8728664caa14c6447f4473f2d64f6052de6af0737b3f.exe

  • Size

    158KB

  • MD5

    4952a2b2bd5b557db6798946e03b8264

  • SHA1

    80689d4742b237456dbaf2f5129a9452d18a02b4

  • SHA256

    b20df532e15674feb9da8728664caa14c6447f4473f2d64f6052de6af0737b3f

  • SHA512

    363178c39a43c7048a264a9d6aa0f64bc25a3b4ab752dd411dac40eef4acdec309d11ade25c6ae3e3ef50398d35ac36cecc302582ace0fd2b34b471e1f0b0bcd

  • SSDEEP

    3072:VbRJ+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPl8a8Y:VbR80ODhTEPgnjuIJzo+PPcfPt8

Score
10/10
arrowratclientpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

213.59.119.25:1337

Mutex

SBAyMWVxF

Signatures

  • ArrowRat

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

    ratarrowrat
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 15 IoCs
  • Suspicious use of SetWindowsHookEx 1 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\arrow\b20df532e15674feb9da8728664caa14c6447f4473f2d64f6052de6af0737b3f.exe
    "C:\Users\Admin\AppData\Local\Temp\arrow\b20df532e15674feb9da8728664caa14c6447f4473f2d64f6052de6af0737b3f.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1704
    • 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:1500
      • C:\Windows\system32\ctfmon.exe
        ctfmon.exe
        3⤵
          PID:588
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
        2⤵
          PID:1864
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
          2⤵
            PID:524
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
            2⤵
              PID:1620
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
              2⤵
                PID:1420
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
                2⤵
                  PID:1784
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
                  2⤵
                    PID:1528
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
                    2⤵
                      PID:292
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
                      2⤵
                        PID:1468
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
                        2⤵
                          PID:1640
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.59.119.25 1337 SBAyMWVxF
                          2⤵
                            PID:1600
                        • C:\Windows\system32\AUDIODG.EXE
                          C:\Windows\system32\AUDIODG.EXE 0x57c
                          1⤵
                          • Suspicious use of AdjustPrivilegeToken
                          PID:800

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        • memory/1500-56-0x0000000003F60000-0x0000000003F61000-memory.dmp

                          Filesize

                          4KB

                          Download

                        • memory/1500-58-0x0000000003F60000-0x0000000003F61000-memory.dmp

                          Filesize

                          4KB

                          Download

                        • memory/1500-62-0x0000000003A50000-0x0000000003A60000-memory.dmp

                          Filesize

                          64KB

                          Download

                        • memory/1704-54-0x00000000012F0000-0x000000000131E000-memory.dmp

                          Filesize

                          184KB

                          Download

                        • memory/1704-55-0x000000001B050000-0x000000001B0D0000-memory.dmp

                          Filesize

                          512KB

                          Download

                        • memory/1704-57-0x000000001B050000-0x000000001B0D0000-memory.dmp

                          Filesize

                          512KB

                          Download