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
    138s
  • max time network
    31s
  • 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/17a76858f5bba3812b8f429e261ba0e84baf8197fe1f4478aa6c7adc5d8dd6ff.exe

  • Size

    138KB

  • MD5

    fcc0c059b3a4b6f9f865fcde362b9acb

  • SHA1

    23edfe65a519d095ca11f3987bfe6de661953f49

  • SHA256

    17a76858f5bba3812b8f429e261ba0e84baf8197fe1f4478aa6c7adc5d8dd6ff

  • SHA512

    0ebd9972df18c0de58077dceaf0e9618e4e6c004d53775272c8db9613a8db90834e10a255213f55ff492ae489498cc9bdbecf386986cdb1d5a0d2cfe45785b43

  • SSDEEP

    3072:2bvt5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/YO:2bv7S7BqjjYHdrqkL/

Score
10/10
arrowratil61hbpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

IL61HB

C2

windowsii.duckdns.org:1338

Mutex

3W69EU

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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 17 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\17a76858f5bba3812b8f429e261ba0e84baf8197fe1f4478aa6c7adc5d8dd6ff.exe
    "C:\Users\Admin\AppData\Local\Temp\arrow\17a76858f5bba3812b8f429e261ba0e84baf8197fe1f4478aa6c7adc5d8dd6ff.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2040
    • 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:1708
      • C:\Windows\system32\ctfmon.exe
        ctfmon.exe
        3⤵
          PID:1676
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
        2⤵
          PID:932
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
          2⤵
            PID:1680
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
            2⤵
              PID:880
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
              2⤵
                PID:832
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
                2⤵
                  PID:796
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
                  2⤵
                    PID:1900
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
                    2⤵
                      PID:972
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
                      2⤵
                        PID:1904
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
                        2⤵
                          PID:336
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" IL61HB windowsii.duckdns.org 1338 3W69EU
                          2⤵
                            PID:1480
                        • C:\Windows\system32\AUDIODG.EXE
                          C:\Windows\system32\AUDIODG.EXE 0x554
                          1⤵
                          • Suspicious use of AdjustPrivilegeToken
                          PID:604

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        • memory/1708-55-0x0000000003CD0000-0x0000000003CD1000-memory.dmp

                          Filesize

                          4KB

                          Download

                        • memory/1708-56-0x0000000003CD0000-0x0000000003CD1000-memory.dmp

                          Filesize

                          4KB

                          Download

                        • memory/1708-60-0x0000000002780000-0x0000000002790000-memory.dmp

                          Filesize

                          64KB

                          Download

                        • memory/2040-54-0x0000000001260000-0x0000000001288000-memory.dmp

                          Filesize

                          160KB

                          Download