Overview

overview

10

Static

static

1

Runtime_Broker.bat

windows7-x64

7

Runtime_Broker.bat

windows10-2004-x64

10

Sharing

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General

  • Target

    Runtime_Broker.bat

  • Size

    272KB

  • Sample

    240419-xq1thadf2z

  • MD5

    72a727ab70c538ce90817288c1b37452

  • SHA1

    a095af10523110e887c1b199abf157857bce32ac

  • SHA256

    823a46b99ae7f1302e71de1b375e40c721481d7f69779a25cb0b15b53564f3cd

  • SHA512

    61228347d58088dc7f12a4e5246075a9baf504421ef308aac0ba11b48ab3e55dba6f5475854ca2ff83504802e9b0d19aecf68cd8e144a3cc1b593a54c2d22217

  • SSDEEP

    6144:gK4e1skyYUV3FEivyHLB2KSM4dWeD0SGb9i3oqWs:gM5yYUVSivMLB2KSM4wedIabf

Score
10/10
xwormpersistencerattrojan

Malware Config

Targets

    • Target

      Runtime_Broker.bat

    • Size

      272KB

    • MD5

      72a727ab70c538ce90817288c1b37452

    • SHA1

      a095af10523110e887c1b199abf157857bce32ac

    • SHA256

      823a46b99ae7f1302e71de1b375e40c721481d7f69779a25cb0b15b53564f3cd

    • SHA512

      61228347d58088dc7f12a4e5246075a9baf504421ef308aac0ba11b48ab3e55dba6f5475854ca2ff83504802e9b0d19aecf68cd8e144a3cc1b593a54c2d22217

    • SSDEEP

      6144:gK4e1skyYUV3FEivyHLB2KSM4dWeD0SGb9i3oqWs:gM5yYUVSivMLB2KSM4wedIabf

    Score
    10/10
    xwormpersistencerattrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Deletes itself

    • 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.

    behavioral1behavioral2

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