Overview

overview

10

Static

static

3

grabberupdate.exe

windows10-2004-x64

10

grabberupdate.exe

windows11-21h2-x64

8

Sharing

Copy URL
Twitter E-mail

General

  • Target

    grabberupdate.exe

  • Size

    87KB

  • Sample

    240522-1aq6xahe47

  • MD5

    ab378d6539627c52dbfc272c83eb420c

  • SHA1

    039060f0fdefbe0a62147a7bbad9b1a526a78d61

  • SHA256

    2a0ac2b38c51d764422f55d55a0bca58be786c10b0b1386c5dce3055894c0ef2

  • SHA512

    afe3be5f89ad67e2c4440d44c6ed890853eecb6cf34faed20d61ae49f30fa30a5cc390393b3ef4609a34a2121b6831cacf00ee6aa62c268e0b9fce0223bb0222

  • SSDEEP

    1536:L7fPGykbOqjoHm4pICdfkLtAfupcWX50MxFY+yIOlnToIfNxFOy:Hq6+ouCpk2mpcWJ0r+QNTBfNZ

Score
10/10
xwormexecutionpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    wlms.exe

  • pastebin_url

    https://pastebin.com/raw/Xuc6dzua

Targets

    • Target

      grabberupdate.exe

    • Size

      87KB

    • MD5

      ab378d6539627c52dbfc272c83eb420c

    • SHA1

      039060f0fdefbe0a62147a7bbad9b1a526a78d61

    • SHA256

      2a0ac2b38c51d764422f55d55a0bca58be786c10b0b1386c5dce3055894c0ef2

    • SHA512

      afe3be5f89ad67e2c4440d44c6ed890853eecb6cf34faed20d61ae49f30fa30a5cc390393b3ef4609a34a2121b6831cacf00ee6aa62c268e0b9fce0223bb0222

    • SSDEEP

      1536:L7fPGykbOqjoHm4pICdfkLtAfupcWX50MxFY+yIOlnToIfNxFOy:Hq6+ouCpk2mpcWJ0r+QNTBfNZ

    Score
    10/10
    xwormexecutionpersistenceratspywarestealertrojan

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • 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

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

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

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks