Overview

overview

10

Static

static

10

b766c8001c...02.exe

windows7-x64

10

b766c8001c...02.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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 02:24

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General

  • Target

    b766c8001cc928c65188a80a149d8eb11c59178b68cee4437659e67d2f02c402.exe

  • Size

    138KB

  • MD5

    6787bc47fb117dd9ee565060bf696218

  • SHA1

    e11600ca6afb97abbb9c42f1ded0d6afc6daef12

  • SHA256

    b766c8001cc928c65188a80a149d8eb11c59178b68cee4437659e67d2f02c402

  • SHA512

    506c26e3803d30983b8b4e925d5e78e3e27c953d708d5f1fbdbf79a0d2a23d2c299e7021e33c2feccba1de57e1de9ac1b3c6ad5e89bd0e67fdf617ad509105f4

  • SSDEEP

    3072:qbvc5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/YS:qbvUS7BqjjYHdrqkL/

Score
10/10
arrowratvenomhvncdiscoverypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

VenomHVNC

C2

84.17.59.86:10018

Mutex

IDgbBCwxP

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 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 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 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 10 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\b766c8001cc928c65188a80a149d8eb11c59178b68cee4437659e67d2f02c402.exe
    "C:\Users\Admin\AppData\Local\Temp\b766c8001cc928c65188a80a149d8eb11c59178b68cee4437659e67d2f02c402.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2112
    • 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:2164
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" VenomHVNC 84.17.59.86 10018 IDgbBCwxP
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2608
  • 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:1156
  • 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:2984

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\AppCache133717046707020748.txt
    Filesize

    75KB

    MD5

    c39cf645748369fad57b8f5a5f1fb555

    SHA1

    c78e7f19110b0689143223a8ea921505a8e938fc

    SHA256

    af30a297ec18fd63ffd4bb8f5cc72fe123a88b0c8455f986436079851e719ac5

    SHA512

    d4a1f85351726b347ea2ecf82016179563cecb9ce2df2140e2a808a0553b93ed3a6fcab60a510ecb3c8289b0b2ec04f8b2a043d86c772260033620ea2c3667f6

    Download Submit

  • memory/2112-0-0x00007FFA90343000-0x00007FFA90345000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2112-1-0x0000027D5D050000-0x0000027D5D078000-memory.dmp

    Filesize

    160KB

    Download

  • memory/2164-13-0x0000000003330000-0x0000000003331000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2608-5-0x00000000055A0000-0x000000000563C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/2608-6-0x0000000005D90000-0x0000000006334000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/2608-7-0x0000000005CD0000-0x0000000005D36000-memory.dmp

    Filesize

    408KB

    Download

  • memory/2608-10-0x0000000006590000-0x00000000065E0000-memory.dmp

    Filesize

    320KB

    Download

  • memory/2608-4-0x0000000005500000-0x0000000005592000-memory.dmp

    Filesize

    584KB

    Download

  • memory/2608-2-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

    Download

  • memory/2984-16-0x000002ADA7440000-0x000002ADA7540000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2984-17-0x000002ADA7440000-0x000002ADA7540000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2984-20-0x000002ADA8590000-0x000002ADA85B0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2984-15-0x000002ADA7440000-0x000002ADA7540000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2984-42-0x000002ADA8960000-0x000002ADA8980000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2984-30-0x000002ADA8550000-0x000002ADA8570000-memory.dmp

    Filesize

    128KB

    Download