Overview

overview

10

Static

static

3d8748df2f...a4.exe

windows7_x64

10

3d8748df2f...a4.exe

windows10_x64

10

Sharing

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General

  • Target

    3d8748df2fde450a4c4b2a8996520c573979ea65070d17d5bf58ee4de780dda4

  • Size

    1.0MB

  • Sample

    210511-3vbzk7m2we

  • MD5

    21bbbf040b608ecb91d3a6312622532d

  • SHA1

    cd71365ceff141d08c4445556cb4679163c9ccbf

  • SHA256

    3d8748df2fde450a4c4b2a8996520c573979ea65070d17d5bf58ee4de780dda4

  • SHA512

    9bd0b26c4cc6e70800580972d273ef8c767ebc9212207a4607f457a1f92c9eb5df1414a48d092c51120481ec49c89afe1cabc299b2ce521a8f45c154b69067d8

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      3d8748df2fde450a4c4b2a8996520c573979ea65070d17d5bf58ee4de780dda4

    • Size

      1.0MB

    • MD5

      21bbbf040b608ecb91d3a6312622532d

    • SHA1

      cd71365ceff141d08c4445556cb4679163c9ccbf

    • SHA256

      3d8748df2fde450a4c4b2a8996520c573979ea65070d17d5bf58ee4de780dda4

    • SHA512

      9bd0b26c4cc6e70800580972d273ef8c767ebc9212207a4607f457a1f92c9eb5df1414a48d092c51120481ec49c89afe1cabc299b2ce521a8f45c154b69067d8

    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.

    • 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 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

5
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

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks