Overview

overview

10

Static

static

3

XcHvYYrNa.exe

windows7-x64

10

XcHvYYrNa.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    XcHvYYrNa.exe

  • Size

    35.7MB

  • Sample

    240522-mp69saca84

  • MD5

    17a5b2e38e52ba783232e01686477307

  • SHA1

    19905670b94997dfbcbccdd3437e3595119d9538

  • SHA256

    f58b4cb63d8d082dd1c6061c4f87f292d194fb7a19c55f6df5ee781431dce31a

  • SHA512

    e7417c40188807f7b5a2facb6bf10813ec7450a82be9b0d47795e519083e484eb5cf045fa1e7b169695b1f56aefd078294969351d83a38e70a099395e93a6951

  • SSDEEP

    786432:/QUiPmbQYUS3jKoNpSaDlLlrfrvacgl8x8MQkEweK:/vs1UuDapLlrmcgCxzP

Score
10/10
xwormevasionexecutionpersistenceratthemidatrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • pastebin_url

    https://pastebin.com/raw/cXrVe9uw

  • telegram

    https://api.telegram.org/bot6979293307:AAEOPp5yyNk59nmm3T6LeHhjYWWOLjWSYdU/sendMessage?chat_id=1370207735

Targets

    • Target

      XcHvYYrNa.exe

    • Size

      35.7MB

    • MD5

      17a5b2e38e52ba783232e01686477307

    • SHA1

      19905670b94997dfbcbccdd3437e3595119d9538

    • SHA256

      f58b4cb63d8d082dd1c6061c4f87f292d194fb7a19c55f6df5ee781431dce31a

    • SHA512

      e7417c40188807f7b5a2facb6bf10813ec7450a82be9b0d47795e519083e484eb5cf045fa1e7b169695b1f56aefd078294969351d83a38e70a099395e93a6951

    • SSDEEP

      786432:/QUiPmbQYUS3jKoNpSaDlLlrfrvacgl8x8MQkEweK:/vs1UuDapLlrmcgCxzP

    Score
    10/10
    xwormevasionexecutionpersistenceratthemidatrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks