Overview

overview

10

Static

static

3

b4019d2faf...18.exe

windows7-x64

10

b4019d2faf...18.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    b4019d2fafd8905aa8db32ed6cf499c1_JaffaCakes118
  • Size 287KB
  • Sample240404-krldzsbd25
  • SHA256 89a493fd66557d60026a94e1680c7bdf269e05904ae532417b54a81c6f388327
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target
      b4019d2fafd8905aa8db32ed6cf499c1_JaffaCakes118
    • Size 287KB
    • SHA256 89a493fd66557d60026a94e1680c7bdf269e05904ae532417b54a81c6f388327
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (55) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks