Overview

overview

10

Static

static

10

JavaScript.exe

windows10-1703-x64

10

JavaScript.exe

windows10-2004-x64

10

JavaScript.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    JavaScript.exe

  • Size

    45KB

  • Sample

    240523-s31xtagb25

  • MD5

    f820ce3ab4a45a4e512a03eb04e5a4f8

  • SHA1

    ad8cebc70092daf23cabfc764c32d2556b02567c

  • SHA256

    48197dddf561852493a4a9c06b9e8a84015a16cd5dc131cccf7a528124790d95

  • SHA512

    14f4855a4ac220ab11fd14ead8baa19e812edada9ddc288161a159b5868855dee7de75e0288b76889eb5c0f0031c1b04f165ead393847cf1ae22d41747b1100f

  • SSDEEP

    768:gcNFC/wJSlFE1d15PhntpqOTDMFHFEPG9PMDOChSzYiXb1:gzwJS3yVQJF19PMDOC45Xb1

Score
10/10
xwormpersistencerattrojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

78.34.61.197:4782

Mutex

yRVcxFHrInqhyusF

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    Runtime Broker.exe

aes.plain

Targets

    • Target

      JavaScript.exe

    • Size

      45KB

    • MD5

      f820ce3ab4a45a4e512a03eb04e5a4f8

    • SHA1

      ad8cebc70092daf23cabfc764c32d2556b02567c

    • SHA256

      48197dddf561852493a4a9c06b9e8a84015a16cd5dc131cccf7a528124790d95

    • SHA512

      14f4855a4ac220ab11fd14ead8baa19e812edada9ddc288161a159b5868855dee7de75e0288b76889eb5c0f0031c1b04f165ead393847cf1ae22d41747b1100f

    • SSDEEP

      768:gcNFC/wJSlFE1d15PhntpqOTDMFHFEPG9PMDOChSzYiXb1:gzwJS3yVQJF19PMDOC45Xb1

    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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    behavioral1behavioral2behavioral3

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks