Overview

overview

10

Static

static

10

op.exe

windows7-x64

10

op.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    277s
  • max time network
    302s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-05-2024 12:47

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General

  • Target

    op.exe

  • Size

    68KB

  • MD5

    d4c021f050296c309b84059bafa41332

  • SHA1

    f0df37f5f880969fcbba1f4f7d9ab7cdb3e596c5

  • SHA256

    a615aece52e909040876d9f88984d4a60499f2604dc181acc69aa241dd1e1ed2

  • SHA512

    27be42f79cbbf0c8a81c5a2decd0a393e27b0459bff9ed7b5f9b926e93da5f096efbfa6f473525db1d3269795c174506f544866a82774a4d5948bd644bb3aea7

  • SSDEEP

    1536:LObri+HdUrMuOGw+btMvnz7W7jqwaeAdKO2mIJ/1h1:LOnxdPuTw+bavfw6QO2mIJf1

Score
10/10
xwormrattrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    dllhost.exe

  • telegram

    https://api.telegram.org/bot6840593734:AAGeMJswJHfSYYy4WpS8cypmpzA8wfWUYMg/sendMessage?chat_id=1330099235

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\op.exe
    "C:\Users\Admin\AppData\Local\Temp\op.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "dllhost" /tr "C:\Users\Admin\AppData\Roaming\dllhost.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2304
  • C:\Users\Admin\AppData\Roaming\dllhost.exe
    C:\Users\Admin\AppData\Roaming\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4728
  • C:\Users\Admin\AppData\Roaming\dllhost.exe
    C:\Users\Admin\AppData\Roaming\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2892
  • C:\Users\Admin\AppData\Roaming\dllhost.exe
    C:\Users\Admin\AppData\Roaming\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3968
  • C:\Users\Admin\AppData\Roaming\dllhost.exe
    C:\Users\Admin\AppData\Roaming\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2936
  • C:\Users\Admin\AppData\Roaming\dllhost.exe
    C:\Users\Admin\AppData\Roaming\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\dllhost.exe.log
    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

    Download Submit

  • C:\Users\Admin\AppData\Roaming\dllhost.exe
    Filesize

    68KB

    MD5

    d4c021f050296c309b84059bafa41332

    SHA1

    f0df37f5f880969fcbba1f4f7d9ab7cdb3e596c5

    SHA256

    a615aece52e909040876d9f88984d4a60499f2604dc181acc69aa241dd1e1ed2

    SHA512

    27be42f79cbbf0c8a81c5a2decd0a393e27b0459bff9ed7b5f9b926e93da5f096efbfa6f473525db1d3269795c174506f544866a82774a4d5948bd644bb3aea7

    Download Submit

  • memory/4728-8-0x00007FFA50440000-0x00007FFA50F01000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4728-10-0x00007FFA50440000-0x00007FFA50F01000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5012-0-0x00007FFA50443000-0x00007FFA50445000-memory.dmp

    Filesize

    8KB

    Download

  • memory/5012-1-0x0000000000E20000-0x0000000000E38000-memory.dmp

    Filesize

    96KB

    Download

  • memory/5012-3-0x00007FFA50440000-0x00007FFA50F01000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5012-4-0x00007FFA50443000-0x00007FFA50445000-memory.dmp

    Filesize

    8KB

    Download

  • memory/5012-5-0x00007FFA50440000-0x00007FFA50F01000-memory.dmp

    Filesize

    10.8MB

    Download