Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-12-2023 13:11

General

  • Target

    anydesk1.exe

  • Size

    23KB

  • MD5

    fd5525ee6851e2d72d505553c2f80a6f

  • SHA1

    3db8bff5294bf07795db1d03c0a2307590eb09f2

  • SHA256

    15d6b2c3c4164dfd7b6eb05593a7e0cc3ebebb6a4ad143938621300bb66cc2c2

  • SHA512

    e2ac5f4b10d38cc6378c6463f3eede7ee8fc4fb99c2787c14b1bf16637d0520e4043af55b4ecf10386ff3a40fae2bbb51ef326161a22f2b4ed4165c94c90a3ff

  • SSDEEP

    384:eI2SUwXh0ZbAzlRGCvkodj46hgHK0hrV5mRvR6JZlbw8hqIusZzZCq:RbhEkdvXRpcnuG

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\anydesk1.exe
    "C:\Users\Admin\AppData\Local\Temp\anydesk1.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\anydesk1.exe" "anydesk1.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      PID:5056

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

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Downloads

  • memory/3532-0-0x0000000074D70000-0x0000000075321000-memory.dmp
    Filesize

    5.7MB

  • memory/3532-1-0x0000000001450000-0x0000000001460000-memory.dmp
    Filesize

    64KB

  • memory/3532-2-0x0000000074D70000-0x0000000075321000-memory.dmp
    Filesize

    5.7MB

  • memory/3532-4-0x0000000074D70000-0x0000000075321000-memory.dmp
    Filesize

    5.7MB

  • memory/3532-5-0x0000000001450000-0x0000000001460000-memory.dmp
    Filesize

    64KB