Overview

overview

10

Static

static

a6568b45a4...12.exe

windows7_x64

10

a6568b45a4...12.exe

windows10_x64

10

Sharing

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General

  • Target

    a6568b45a4c9725849af9cf2849f477f05911db8ea50211b0caa2f45734a3212

  • Size

    619KB

  • Sample

    210511-1lczyz5s1n

  • MD5

    8d14ae0ece097d9f5baa4c4e1a70aa74

  • SHA1

    656c39cc91cdd7d597891e38135b40d9d36fd3be

  • SHA256

    a6568b45a4c9725849af9cf2849f477f05911db8ea50211b0caa2f45734a3212

  • SHA512

    28c780bf8d155d103d06ab98f4afbfd32a2e4b5c202eda8e59515241bbd3ca80f0411be589f877427c4e63fbe8af5e4a874971b28bc65b0f55533fb450f5f5f5

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      a6568b45a4c9725849af9cf2849f477f05911db8ea50211b0caa2f45734a3212

    • Size

      619KB

    • MD5

      8d14ae0ece097d9f5baa4c4e1a70aa74

    • SHA1

      656c39cc91cdd7d597891e38135b40d9d36fd3be

    • SHA256

      a6568b45a4c9725849af9cf2849f477f05911db8ea50211b0caa2f45734a3212

    • SHA512

      28c780bf8d155d103d06ab98f4afbfd32a2e4b5c202eda8e59515241bbd3ca80f0411be589f877427c4e63fbe8af5e4a874971b28bc65b0f55533fb450f5f5f5

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • Deletes itself

    • 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

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

6
T1112

Hidden Files and Directories

1
T1158

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks