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Overview

overview

10

Static

static

10

peepeemonster.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    131s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 14:15

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General

  • Target

    peepeemonster.exe

  • Size

    81KB

  • MD5

    fc5e9d5c2fd3a2864e889a60c64a3f9f

  • SHA1

    216f69bb7b4c97c3c19d91cc2c0f410783fd661e

  • SHA256

    7e1c2e3a716890993addd3604b267907b60e8d5c0a55e1428515777b73137b53

  • SHA512

    1ac5e3b42acfd7d2504589f9c06f1e2fea5ba9682fef5d18a073a2af209630567cdce0478d373a1474c20d53d830dc75a58b688c7f649d687763b89bbb40976b

  • SSDEEP

    1536:luE+uvqIX09IsIoqpNWnAtcRbQlHEctxnwi8JfDn+cYurOZtSFxmjHRW:wUq4JdoqpttcRbQlHQkcYEOvQyW

Score
10/10
xwormpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

104.28.242.8:7000

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    ..exe

Signatures

  • Detect Xworm Payload 1 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.

  • Drops startup file 2 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).

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

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

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 31 IoCs
  • Suspicious use of SendNotifyMessage 31 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\peepeemonster.exe
    "C:\Users\Admin\AppData\Local\Temp\peepeemonster.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "." /tr "C:\ProgramData\..exe"
      2⤵
      • Creates scheduled task(s)
      PID:4568
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/740-21-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-11-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-15-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-17-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-18-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-9-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-19-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-20-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-10-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/740-16-0x0000020E05700000-0x0000020E05701000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1776-0-0x00007FFE0DD13000-0x00007FFE0DD15000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1776-1-0x00000000003F0000-0x000000000040A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/1776-8-0x00007FFE0DD10000-0x00007FFE0E7D1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1776-7-0x00007FFE0DD13000-0x00007FFE0DD15000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1776-2-0x00007FFE0DD10000-0x00007FFE0E7D1000-memory.dmp

    Filesize

    10.8MB

    Download