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

    67KB

  • Sample

    230322-2593yadh7y

  • MD5

    404dee8c8fe0b8c25ac39f60960dcbf0

  • SHA1

    078b5427a3c29a2f410f0e09f667389ad630ed60

  • SHA256

    90d2777179534bb5746559397a767aeee141f30a57b53c5d9c2122278b4bc4b7

  • SHA512

    9d7c6c2cceff330acea030002c4c7fde0a9ebe4f6a94a035e6fd6f08d7f5fea407680e5acd5baef687a19f40e116c47e8615dd4f728bdac7636529665e83956e

  • SSDEEP

    768:I9Zqr1TeXYQI9WFFTLmxVm2LXT8fbKQCQ/bm1f5Nc0Mrufk+NY1DT4sMOcPhoRcp:1r1g+wrXFfsybmtlMi2asMOasUbj

Score
10/10
xwormevasionpersistencepyinstallerransomwareratspywarestealertrojan

Malware Config

Targets

    • Target

      XClient.exe

    • Size

      67KB

    • MD5

      404dee8c8fe0b8c25ac39f60960dcbf0

    • SHA1

      078b5427a3c29a2f410f0e09f667389ad630ed60

    • SHA256

      90d2777179534bb5746559397a767aeee141f30a57b53c5d9c2122278b4bc4b7

    • SHA512

      9d7c6c2cceff330acea030002c4c7fde0a9ebe4f6a94a035e6fd6f08d7f5fea407680e5acd5baef687a19f40e116c47e8615dd4f728bdac7636529665e83956e

    • SSDEEP

      768:I9Zqr1TeXYQI9WFFTLmxVm2LXT8fbKQCQ/bm1f5Nc0Mrufk+NY1DT4sMOcPhoRcp:1r1g+wrXFfsybmtlMi2asMOasUbj

    Score
    10/10
    xwormevasionpersistenceransomwarerattrojanpyinstallerspywarestealer

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • UAC bypass

      evasiontrojan

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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.

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

5
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Defacement

1
T1491

Tasks