Overview

overview

10

Static

static

10

6aad7dead2...90.exe

windows7-x64

10

6aad7dead2...90.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-11-2024 19:44

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General

  • Target

    6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe

  • Size

    138KB

  • MD5

    348c70b182eb53d74fe080f57c7265bc

  • SHA1

    42e3e7c848fc8774dd7bd6be1e3bdfe98fc86e06

  • SHA256

    6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090

  • SHA512

    3b2c3f04443e76371fdd03aae0b4c846bcf585ad69d235ff595612f24a96607b7c44b5182a66c87b589044a5d3b2b77839c384b5ccc7fc65b8b10c40982ada12

  • SSDEEP

    3072:Jbvs5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/Yl:JbvES7BqjjYHdrqkL/

Score
10/10
arrowratbrasildiscoverypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

BRASIL

C2

chromedata.accesscam.org:1338

Mutex

imfoNeSSi

Signatures

  • ArrowRat

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

    ratarrowrat
  • Arrowrat family
    arrowrat
  • 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 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 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\6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
    "C:\Users\Admin\AppData\Local\Temp\6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • 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:1364
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
      2⤵
        PID:4624
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
        2⤵
          PID:2492
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
          2⤵
          • System Location Discovery: System Language Discovery
          PID:3100
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Suspicious use of SetWindowsHookEx
        PID:3652
      • 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:5004

      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\AppCache133750503198482712.txt
        Filesize

        75KB

        MD5

        a315b9920dc5269f2d2659f7509e3da3

        SHA1

        653deef95a660d58afd850202800863353a5a565

        SHA256

        df5de845d9126f302b6beebd1828f37e99c2d239de3a9b0dcae24ce6455f2d12

        SHA512

        626e558dafe1b041f00b0bfb0f56bb67c677b28f6bf1404d9a8c2adba2ba303dc8d179aecde8f9fff139b32d18811d5a067055d4d280c9018f6b606452915561

        Download Submit

      • memory/1364-14-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2276-0-0x00007FFB25743000-0x00007FFB25745000-memory.dmp

        Filesize

        8KB

        Download

      • memory/2276-1-0x000002AED4EF0000-0x000002AED4F18000-memory.dmp

        Filesize

        160KB

        Download

      • memory/3100-7-0x0000000005900000-0x0000000005966000-memory.dmp

        Filesize

        408KB

        Download

      • memory/3100-6-0x0000000005A40000-0x0000000005FE4000-memory.dmp

        Filesize

        5.6MB

        Download

      • memory/3100-5-0x00000000051D0000-0x000000000526C000-memory.dmp

        Filesize

        624KB

        Download

      • memory/3100-10-0x00000000061F0000-0x0000000006240000-memory.dmp

        Filesize

        320KB

        Download

      • memory/3100-4-0x0000000005070000-0x0000000005102000-memory.dmp

        Filesize

        584KB

        Download

      • memory/3100-2-0x0000000000400000-0x0000000000416000-memory.dmp

        Filesize

        88KB

        Download

      • memory/5004-20-0x00000255A1A20000-0x00000255A1A40000-memory.dmp

        Filesize

        128KB

        Download

      • memory/5004-50-0x00000255A19E0000-0x00000255A1A00000-memory.dmp

        Filesize

        128KB

        Download

      • memory/5004-51-0x00000255A1DF0000-0x00000255A1E10000-memory.dmp

        Filesize

        128KB

        Download