Overview

overview

10

Static

static

10

btt.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 21:38

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    btt.exe

  • Size

    158KB

  • MD5

    72cabad77d69e7701af2d31218ac4b7e

  • SHA1

    e781c9c87a30163cdef9b5f6f419c27f26e8f271

  • SHA256

    7f8cb35c0290b33bcb49876680340b63061a3fc1558c372a42d87ec21c03ed66

  • SHA512

    709ad82ff09dc32dac22e8aa431833b885f8df4a2e61279fde90b7dad771d55b9a318372d645b8538dee0fdb4aeaed36c1408be00f27c102734aad8bb83a067c

  • SSDEEP

    3072:LbzQH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPjBO8Y:LbzQe0ODhTEPgnjuIJzo+PPcfPjM8

Score
10/10
arrowratclientpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

single-point.gl.at.ply.gg:48752

Mutex

NuBrONaJi

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
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\btt.exe
    "C:\Users\Admin\AppData\Local\Temp\btt.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4956
    • 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:3572
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /c taskkill /F /IM chrome.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4120
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /IM chrome.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4240
  • 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:5084
  • 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:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133643435502345459.txt
    Filesize

    75KB

    MD5

    0f5e6c082bd8f60409d8670ebe7191a4

    SHA1

    fca2669f81acdd9883df0d85c531fd22c7e3a281

    SHA256

    e59485ff3e0744735d163e19d99f6c35733735c62f12f2673c28336db616e8e9

    SHA512

    5433c400d5b5e4041bba894b7123ed47f38e364796cf9e96964262b829d10a3a2f0b5e4eca3784e0ff22d31e1c07bda2a1194115078766fc6dd6520fefa14e1d

    Download Submit

  • C:\Users\Admin\AppData\Roaming\temp0923
    Filesize

    10B

    MD5

    044839c51e88783250ca01e0ff4d3007

    SHA1

    d6aaef195a3f12d4754c035230c021887778fb77

    SHA256

    641a4ff58b91e6e2efbd742bb1f9a918a0055021ee8e1fdccbe3f5fcf0c5ad57

    SHA512

    00f498431ea9cda2d019c30679abd774e357f796535eb3df429069e1d2789265a0f4cc1159f332acbaa01a504ce61c3dcdeb645b5618a363d919b413bff24f2d

    Download Submit

  • memory/2152-2-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

    Download

  • memory/2152-3-0x0000000005830000-0x00000000058C2000-memory.dmp

    Filesize

    584KB

    Download

  • memory/2152-4-0x0000000005930000-0x00000000059CC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/2152-5-0x0000000006110000-0x00000000066B4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/2152-6-0x0000000006050000-0x00000000060B6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/2152-9-0x0000000006930000-0x0000000006980000-memory.dmp

    Filesize

    320KB

    Download

  • memory/2648-33-0x000002B7FDF00000-0x000002B7FDF20000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2648-18-0x000002AFFBE00000-0x000002AFFBF00000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2648-16-0x000002AFFBE00000-0x000002AFFBF00000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2648-21-0x000002B7FDF40000-0x000002B7FDF60000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2648-47-0x000002B7FE310000-0x000002B7FE330000-memory.dmp

    Filesize

    128KB

    Download

  • memory/3572-15-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4956-0-0x00000293AC490000-0x00000293AC4BE000-memory.dmp

    Filesize

    184KB

    Download

  • memory/4956-1-0x00007FF9F2B33000-0x00007FF9F2B35000-memory.dmp

    Filesize

    8KB

    Download