Overview

overview

10

Static

static

1

Halkbank.pdf.js

windows10-2004-x64

10

Halkbank.pdf.js

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Halkbank.pdf.js
  • Size 213KB
  • Sample260907-j9tmmsfg63
  • SHA256 8dd315436f3c560ac7ec2e56a17a957eb9af512b59ab552e31dba2fd9c0bd066
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
xwormExecutiondiscoveryexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

Version

  • 5.0

C2

  • 31.56.209.234:443

Mutex

  • 6LTYhMtYJSwSKkQV

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target
      Halkbank.pdf.js
    • Size 213KB
    • SHA256 8dd315436f3c560ac7ec2e56a17a957eb9af512b59ab552e31dba2fd9c0bd066
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    Executiondiscoveryexecutionxwormpersistencerattrojan

    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Temporarily bypasses Powershell execution policy

      Using Set-ExecutionPolicy to permit execution of unsigned or restricted scripts in that process.

      Execution

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks