Overview

overview

10

Static

static

10

2024-05-22...ar.exe

windows7-x64

10

2024-05-22...ar.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 01:35

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General

  • Target

    2024-05-22_1e06d1f23f474c5e6ba0f279d3d3dfac_hiddentear.exe

  • Size

    133KB

  • MD5

    1e06d1f23f474c5e6ba0f279d3d3dfac

  • SHA1

    307c847fafc7453a1050d85b6099b113a2790ef0

  • SHA256

    eb8721bfa1bcacc08b8a8712e6a7fc6d4b69776e8b592abef9539c2fc671df50

  • SHA512

    d1d5302d01fff58479385153160ab271b15f87c87cb5d7ab1df153d818ee9f109fcf8318c7622b068bb4344ab2261aca60c571e2e642d0f84e01bf15ade3c5fb

  • SSDEEP

    3072:J+oM/FJZdq/Fk96ytO/fXM+lmsolAIrRuw+mqv9j1MWLQI:C/FJaNk9Ts8+lDAA

Score
10/10
xwormpersistencerattrojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

103.161.170.251:7000

Mutex

O5WJMXQSSZKD5Ijn

Attributes
  • Install_directory

    %Temp%

  • install_file

    khiet.exe

  • telegram

    https://api.telegram.org/bot6833541180:AAEc_LLwKd7Jex1zaN5vTaLg13uuFjIHQEU/sendMessage?chat_id=5747667034

aes.plain

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Detects Windows executables referencing non-Windows User-Agents 2 IoCs
  • Detects executables using Telegram Chat Bot 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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 use of AdjustPrivilegeToken 3 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\2024-05-22_1e06d1f23f474c5e6ba0f279d3d3dfac_hiddentear.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-22_1e06d1f23f474c5e6ba0f279d3d3dfac_hiddentear.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "khiet" /tr "C:\Users\Admin\AppData\Local\Temp\khiet.exe"
      2⤵
      • Creates scheduled task(s)
      PID:4172
  • C:\Users\Admin\AppData\Local\Temp\khiet.exe
    C:\Users\Admin\AppData\Local\Temp\khiet.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3772
  • C:\Users\Admin\AppData\Local\Temp\khiet.exe
    C:\Users\Admin\AppData\Local\Temp\khiet.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\khiet.exe
    Filesize

    133KB

    MD5

    1e06d1f23f474c5e6ba0f279d3d3dfac

    SHA1

    307c847fafc7453a1050d85b6099b113a2790ef0

    SHA256

    eb8721bfa1bcacc08b8a8712e6a7fc6d4b69776e8b592abef9539c2fc671df50

    SHA512

    d1d5302d01fff58479385153160ab271b15f87c87cb5d7ab1df153d818ee9f109fcf8318c7622b068bb4344ab2261aca60c571e2e642d0f84e01bf15ade3c5fb

    Download Submit
  • memory/1708-0-0x0000000000830000-0x0000000000858000-memory.dmp
    Filesize

    160KB

    Download
  • memory/1708-1-0x00007FFE78D90000-0x00007FFE78F85000-memory.dmp
    Filesize

    2.0MB

    Download
  • memory/1708-6-0x00007FFE78D90000-0x00007FFE78F85000-memory.dmp
    Filesize

    2.0MB

    Download
  • memory/1708-7-0x00007FFE78D90000-0x00007FFE78F85000-memory.dmp
    Filesize

    2.0MB

    Download
  • memory/3772-10-0x00007FFE78D90000-0x00007FFE78F85000-memory.dmp
    Filesize

    2.0MB

    Download
  • memory/3772-12-0x00007FFE78D90000-0x00007FFE78F85000-memory.dmp
    Filesize

    2.0MB

    Download