Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2024, 01:30

General

  • Target
    1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe
  • Size 446KB
  • Sample240705-bw4xfsygrp
  • SHA256 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 127.0.0.1:2005

  • 79.110.62.113:2005

Mutex
  • 0QFmCI3ycTg10NnI

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe
    "C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4388
    • C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe
      "C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1772

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_grh2py3t.0i1.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_grh2py3t.0i1.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/1772-11-0x0000000000400000-0x000000000040E000-memory.dmp

        memory/1772-14-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/1772-64-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/1772-65-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/1860-9-0x000000000C3F0000-0x000000000C440000-memory.dmp

        memory/1860-7-0x0000000005C30000-0x0000000005C38000-memory.dmp

        memory/1860-8-0x000000000C270000-0x000000000C27C000-memory.dmp

        memory/1860-3-0x0000000005730000-0x00000000057C2000-memory.dmp

        memory/1860-10-0x000000000FA80000-0x000000000FB1C000-memory.dmp

        memory/1860-0-0x000000007496E000-0x000000007496F000-memory.dmp

        memory/1860-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

        memory/1860-1-0x0000000000C50000-0x0000000000CC6000-memory.dmp

        memory/1860-15-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/1860-6-0x0000000006CF0000-0x0000000006D0A000-memory.dmp

        memory/1860-4-0x00000000056D0000-0x00000000056DA000-memory.dmp

        memory/1860-5-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-16-0x0000000002AD0000-0x0000000002B06000-memory.dmp

        memory/4388-51-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-33-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-32-0x0000000005E70000-0x00000000061C4000-memory.dmp

        memory/4388-19-0x0000000005500000-0x0000000005522000-memory.dmp

        memory/4388-20-0x00000000056A0000-0x0000000005706000-memory.dmp

        memory/4388-21-0x0000000005710000-0x0000000005776000-memory.dmp

        memory/4388-34-0x00000000063C0000-0x00000000063DE000-memory.dmp

        memory/4388-35-0x0000000006910000-0x000000000695C000-memory.dmp

        memory/4388-49-0x00000000075D0000-0x0000000007673000-memory.dmp

        memory/4388-48-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-50-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-47-0x00000000069B0000-0x00000000069CE000-memory.dmp

        memory/4388-27-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-37-0x0000000070780000-0x00000000707CC000-memory.dmp

        memory/4388-53-0x00000000076F0000-0x000000000770A000-memory.dmp

        memory/4388-52-0x0000000007D30000-0x00000000083AA000-memory.dmp

        memory/4388-54-0x0000000007760000-0x000000000776A000-memory.dmp

        memory/4388-36-0x0000000007390000-0x00000000073C2000-memory.dmp

        memory/4388-55-0x0000000007970000-0x0000000007A06000-memory.dmp

        memory/4388-56-0x00000000078F0000-0x0000000007901000-memory.dmp

        memory/4388-57-0x0000000007920000-0x000000000792E000-memory.dmp

        memory/4388-58-0x0000000007930000-0x0000000007944000-memory.dmp

        memory/4388-59-0x0000000007A30000-0x0000000007A4A000-memory.dmp

        memory/4388-60-0x0000000007A10000-0x0000000007A18000-memory.dmp

        memory/4388-63-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-17-0x0000000074960000-0x0000000075110000-memory.dmp

        memory/4388-18-0x0000000005840000-0x0000000005E68000-memory.dmp