Overview

overview

10

Static

static

4b7183e586...76.exe

windows7_x64

10

4b7183e586...76.exe

windows10_x64

10

Sharing

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General

  • Target

    4b7183e586244632464c19d68d68a2a03e3d054240d1678eb40558ce9e117b76

  • Size

    624KB

  • Sample

    210511-sl7zy4v2ls

  • MD5

    f24535f54961758570a8e1336fdf984e

  • SHA1

    c4b94bae9f79edfb610d0f5ae83ba52ea2ae2548

  • SHA256

    4b7183e586244632464c19d68d68a2a03e3d054240d1678eb40558ce9e117b76

  • SHA512

    b26dcfa89091b756d05f164852c523e3ede31af188ab0b06b10e7cc4e5d5d9055b62899d74b96620cd7d5d0332f42c0509e1ad484f98b607bc07f16424dbee31

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      4b7183e586244632464c19d68d68a2a03e3d054240d1678eb40558ce9e117b76

    • Size

      624KB

    • MD5

      f24535f54961758570a8e1336fdf984e

    • SHA1

      c4b94bae9f79edfb610d0f5ae83ba52ea2ae2548

    • SHA256

      4b7183e586244632464c19d68d68a2a03e3d054240d1678eb40558ce9e117b76

    • SHA512

      b26dcfa89091b756d05f164852c523e3ede31af188ab0b06b10e7cc4e5d5d9055b62899d74b96620cd7d5d0332f42c0509e1ad484f98b607bc07f16424dbee31

    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