Overview

overview

10

Static

static

633fe6b5_b...is.exe

windows7_x64

10

633fe6b5_b...is.exe

windows10_x64

10

Sharing

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General

  • Target

    633fe6b5_by_Libranalysis

  • Size

    622KB

  • Sample

    210505-q8bgfapqe6

  • MD5

    633fe6b5de545f9a0dec7a90bd3cabbf

  • SHA1

    72a67c3240fe4007485cd916f9559539c3718b8a

  • SHA256

    c65ba6d4dad9a0a187ad7055cbb33c8046c6272aa54b680f35b64bfc24579921

  • SHA512

    1b03c04f1bb92a0a66f80bd82f380905c9c3272629a7b91183fcfc6514b3a24058c22db7bd0e473dcdde6d5fce56ebc6a2c93389d9f3ec0b904bed91da8723c1

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      633fe6b5_by_Libranalysis

    • Size

      622KB

    • MD5

      633fe6b5de545f9a0dec7a90bd3cabbf

    • SHA1

      72a67c3240fe4007485cd916f9559539c3718b8a

    • SHA256

      c65ba6d4dad9a0a187ad7055cbb33c8046c6272aa54b680f35b64bfc24579921

    • SHA512

      1b03c04f1bb92a0a66f80bd82f380905c9c3272629a7b91183fcfc6514b3a24058c22db7bd0e473dcdde6d5fce56ebc6a2c93389d9f3ec0b904bed91da8723c1

    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