Overview

overview

8

Static

static

3

Proposal L...78.exe

windows10-2004-x64

8

Proposal L...78.exe

windows11-ltsc_2024-x64

8

Sharing

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General

  • Target
    4c12eeb0176c3406f652c382069ac0720ad13a7165375a2e55909fa5c097914a
  • Size 1.5MB
  • Sample260805-zftcsawbrb
  • SHA256 4c12eeb0176c3406f652c382069ac0720ad13a7165375a2e55909fa5c097914a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
collectiondiscoveryexecutionpersistenceprivilege_escalationspywarestealer

Malware Config

Targets

    • Target
      Proposal Letter.46567878.exe
    • Size 1.5MB
    • SHA256 50fc67ea2617b38f2c01149272fda2e529b231f034f4a4a53c6f152f049107b5
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    8/10
    collectiondiscoveryexecutionpersistenceprivilege_escalationspywarestealer

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

      spywarestealer

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses Microsoft Outlook profiles

      collection

    • Adds Run key to start application

      persistence

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

2
T1552

Credentials In Files

1
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Browser Information Discovery

1
T1217

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Command and Control

Exfiltration

Impact

Tasks