Overview

overview

10

Static

static

10

XClient.exe

windows7-x64

10

XClient.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    XClient.exe

  • Size

    140KB

  • Sample

    240428-bhncjsce75

  • MD5

    ba590e758bf7f43c86ddc06f39dd2347

  • SHA1

    f4acbb1bdee1e31f4430af059a67cd136491a60e

  • SHA256

    c9c4abd3b029e4afafec56a5ee940b4d14444d27c9b0da4794b3cfe047236695

  • SHA512

    17e46beb2d57acc1f9f4a9c959d2f9fadb53158a6a02bd93eece88099655f8246a6cf325c8853e7e45b3b002fdc76c3a528f1972d6674ef883670ebe3244b2d6

  • SSDEEP

    3072:0G/pS61n7sEbZVnJbkLiITO2DIqmyBer:0x6hoEbv5UIqm

Score
10/10
xwormpersistencerattrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • pastebin_url

    https://pastebin.com/raw/PG3MaVGP

Targets

    • Target

      XClient.exe

    • Size

      140KB

    • MD5

      ba590e758bf7f43c86ddc06f39dd2347

    • SHA1

      f4acbb1bdee1e31f4430af059a67cd136491a60e

    • SHA256

      c9c4abd3b029e4afafec56a5ee940b4d14444d27c9b0da4794b3cfe047236695

    • SHA512

      17e46beb2d57acc1f9f4a9c959d2f9fadb53158a6a02bd93eece88099655f8246a6cf325c8853e7e45b3b002fdc76c3a528f1972d6674ef883670ebe3244b2d6

    • SSDEEP

      3072:0G/pS61n7sEbZVnJbkLiITO2DIqmyBer:0x6hoEbv5UIqm

    Score
    10/10
    xwormpersistencerattrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence

    • 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.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks