Overview

overview

10

Static

static

3

update.exe

windows10-2004-x64

10

update.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    update.exe
  • Size 18.6MB
  • Sample260703-hmhq7acy2w
  • SHA256 24de666bf005a016f7069b62ca3645dc1ce05c7337e05f9082009b322c7b5cf2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
blankgrabberdiscoveryexecutionpersistencespywarestealer

Malware Config

Targets

    • Target
      update.exe
    • Size 18.6MB
    • SHA256 24de666bf005a016f7069b62ca3645dc1ce05c7337e05f9082009b322c7b5cf2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryexecutionblankgrabberpersistencespywarestealer

    • A stealer written in Python and packaged with Pyinstaller

    • Family: blankgrabber

      Blankgrabber is an infostealer written in Python and packaged with Pyinstaller.

      stealerblankgrabber

    • 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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • 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 Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

3
T1012

System Information Discovery

3
T1082

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks