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
    144s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-05-2023 12:31

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General

  • Target

    arrow/5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe

  • Size

    138KB

  • MD5

    2f73fdfb8140276968f2c1b358e5edf0

  • SHA1

    160ec42cd31c98fdd91c8a837be32757b2b9af92

  • SHA256

    5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c

  • SHA512

    65c2ac40557d94cf715d720a3774547f10253fe00071cd6e1824f6304f02187e26184b7c064e8c5d0526bd8650e5854bae283cb080ea17ef3d007f28b0d477f3

  • SSDEEP

    3072:+bvY5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/Yh:+bvwS7BqjjYHdrqkL/

Score
10/10
arrowratojg36cpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

OJG36C

C2

mayo21.duckdns.org:2158

Mutex

NT7WTE

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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\arrow\5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
    "C:\Users\Admin\AppData\Local\Temp\arrow\5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2576
    • 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:4428
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
      2⤵
        PID:1612
    • 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:4452
    • 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:2184

    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\AppCache133277369538531390.txt
      Filesize

      75KB

      MD5

      30466909c6fd3bdb0f6d20f8bd1c4b39

      SHA1

      f0e015ecc6e6f60ac5871f2f62a0fff521d02932

      SHA256

      45d64a3ff61f03c84e611eeb213108e1de7877e8a802067698e518937ac08029

      SHA512

      5f84125cc967bd7ae3fc30026472ff15c5b41122ec36f776f7c2fef7f1b07319c51d1300b657e42f0a6f116f14371ce37b89821fe837867f5d06d11e25ec2909

      Download Submit

    • memory/1612-143-0x00000000061C0000-0x0000000006210000-memory.dmp

      Filesize

      320KB

      Download

    • memory/1612-136-0x0000000005070000-0x0000000005102000-memory.dmp

      Filesize

      584KB

      Download

    • memory/1612-137-0x0000000005230000-0x00000000052CC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/1612-138-0x0000000005A10000-0x0000000005FB4000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/1612-139-0x0000000005910000-0x0000000005976000-memory.dmp

      Filesize

      408KB

      Download

    • memory/1612-140-0x0000000005450000-0x0000000005460000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1612-134-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

      Download

    • memory/1612-300-0x0000000005450000-0x0000000005460000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2184-153-0x000002CC5BD00000-0x000002CC5BD20000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2184-156-0x000002CC5B9B0000-0x000002CC5B9D0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2184-158-0x000002CC5C0C0000-0x000002CC5C0E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2576-133-0x00000239318A0000-0x00000239318C8000-memory.dmp

      Filesize

      160KB

      Download

    • memory/4428-146-0x0000000000D30000-0x0000000000D31000-memory.dmp

      Filesize

      4KB

      Download