Overview

overview

10

Static

static

3

bb57a345bf...e2.exe

windows7-x64

10

bb57a345bf...e2.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

  • Size

    619KB

  • Sample

    240522-sce8esfb7s

  • MD5

    458f7cbc40f24ca3257cb3803f1a817c

  • SHA1

    419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877

  • SHA256

    bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2

  • SHA512

    4f4da09b4a42440b0bb8e0e17b313c2b9450456f8ef4469e6f060554ee70fe6f7cef8de30dd72147702e1ec76190276c9d162a2c1492918f600142575f83cff9

  • SSDEEP

    12288:6WET/mr9K+22BEEzFatnd/WeHK4KMSMOV4Tu4Cbpb3W/KuBvnqMUpeNW/:6Wtb3BE/Zq4KJLGT/6bG

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

baldur1.duckdns.org:3360

Mutex

99lkUMNvqj7gQA4z

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Targets

    • Target

      bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

    • Size

      619KB

    • MD5

      458f7cbc40f24ca3257cb3803f1a817c

    • SHA1

      419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877

    • SHA256

      bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2

    • SHA512

      4f4da09b4a42440b0bb8e0e17b313c2b9450456f8ef4469e6f060554ee70fe6f7cef8de30dd72147702e1ec76190276c9d162a2c1492918f600142575f83cff9

    • SSDEEP

      12288:6WET/mr9K+22BEEzFatnd/WeHK4KMSMOV4Tu4Cbpb3W/KuBvnqMUpeNW/:6Wtb3BE/Zq4KJLGT/6bG

    Score
    10/10
    xwormexecutionpersistencerattrojan

    • 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

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    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

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks