Overview

overview

10

Static

static

10

download.exe

windows7-x64

10

download.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 10:55

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General

  • Target

    download.exe

  • Size

    81KB

  • MD5

    dc737cb6aefc2e14b47d8ac9ef3ad765

  • SHA1

    af53fd19ad1e52e4d8eebd1ff4870cd1f73956ff

  • SHA256

    42f805aa109b4f82ced6ee3b43b74fdfd7b7770cbced3a493a74d2470abf43ca

  • SHA512

    1892f201979aed4b302d95e6e9e6f2ca9ed21121fe067e26e74618e73228340fcc6bb17126c0ed717d354ad968e25ba8b255879d1619454084c7e3f795ea7b0b

  • SSDEEP

    1536:4fiCdy2/21CFLzR/jofU0WVUzT0bWg76uIUROLfcxj6VO3VhB2dZ:Wo2kiFosV80bVrIAOLCjoOFhO

Score
10/10
xwormpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:56855

actually-partly.gl.at.ply.gg:56855
Attributes
  • Install_directory

    %ProgramData%

  • install_file

    dllhost.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Xworm family
    xworm
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 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\download.exe
    "C:\Users\Admin\AppData\Local\Temp\download.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3272
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "dllhost" /tr "C:\ProgramData\dllhost.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1792
  • C:\ProgramData\dllhost.exe
    C:\ProgramData\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4092
  • C:\ProgramData\dllhost.exe
    C:\ProgramData\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2488
  • C:\ProgramData\dllhost.exe
    C:\ProgramData\dllhost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\dllhost.exe
    Filesize

    81KB

    MD5

    dc737cb6aefc2e14b47d8ac9ef3ad765

    SHA1

    af53fd19ad1e52e4d8eebd1ff4870cd1f73956ff

    SHA256

    42f805aa109b4f82ced6ee3b43b74fdfd7b7770cbced3a493a74d2470abf43ca

    SHA512

    1892f201979aed4b302d95e6e9e6f2ca9ed21121fe067e26e74618e73228340fcc6bb17126c0ed717d354ad968e25ba8b255879d1619454084c7e3f795ea7b0b

    Download Submit

  • 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

  • memory/3272-0-0x00007FFA81943000-0x00007FFA81945000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3272-1-0x0000000000FF0000-0x000000000100A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/3272-2-0x00007FFA81940000-0x00007FFA82401000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3272-4-0x00007FFA81943000-0x00007FFA81945000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3272-5-0x00007FFA81940000-0x00007FFA82401000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4092-8-0x00007FFA81940000-0x00007FFA82401000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4092-10-0x00007FFA81940000-0x00007FFA82401000-memory.dmp

    Filesize

    10.8MB

    Download