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
    146s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-05-2023 12:31

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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
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\arrow\b20df532e15674feb9da8728664caa14c6447f4473f2d64f6052de6af0737b3f.exe
    "C:\Users\Admin\AppData\Local\Temp\arrow\b20df532e15674feb9da8728664caa14c6447f4473f2d64f6052de6af0737b3f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:868
    • 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:3752
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2276
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2500

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133277369492134243.txt
      Filesize

      75KB

      MD5

      65019a5db517d9fb830d8a57406a03ea

      SHA1

      817faf2ffe8461f653519e7bd96e7ee75021c891

      SHA256

      3ae88b3a99e6b785bdb44760790bc03ac722ef5b673ad5b3ca49b5cc5eecf84f

      SHA512

      bcc985d3fa48efcbb4a334b1a341a6686ef6c69f237d6d9bdcd9885696d148519ab824b9150194d783cb03189c1cc00a483f1b73ebce323f1f6a303a05b8ea62

      Download Submit

    • memory/864-278-0x000001F06ADF0000-0x000001F06AE00000-memory.dmp

      Filesize

      64KB

      Download

    • memory/864-135-0x000001F06ADF0000-0x000001F06AE00000-memory.dmp

      Filesize

      64KB

      Download

    • memory/864-133-0x000001F06A930000-0x000001F06A95E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/868-148-0x0000000003210000-0x0000000003211000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2500-160-0x000001F3536F0000-0x000001F353710000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2500-156-0x000001F352FE0000-0x000001F353000000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2500-154-0x000001F353320000-0x000001F353340000-memory.dmp

      Filesize

      128KB

      Download

    • memory/3752-137-0x00000000050D0000-0x000000000516C000-memory.dmp

      Filesize

      624KB

      Download

    • memory/3752-143-0x00000000052F0000-0x0000000005300000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3752-142-0x00000000060B0000-0x0000000006100000-memory.dmp

      Filesize

      320KB

      Download

    • memory/3752-139-0x0000000005800000-0x0000000005866000-memory.dmp

      Filesize

      408KB

      Download

    • memory/3752-138-0x0000000005AB0000-0x0000000006054000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/3752-136-0x0000000005030000-0x00000000050C2000-memory.dmp

      Filesize

      584KB

      Download

    • memory/3752-134-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

      Download

    • memory/3752-306-0x00000000052F0000-0x0000000005300000-memory.dmp

      Filesize

      64KB

      Download