Overview

overview

10

Static

static

c6f9ef3f_b...is.exe

windows7_x64

10

c6f9ef3f_b...is.exe

windows10_x64

10

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General

  • Target

    c6f9ef3f_by_Libranalysis

  • Size

    1.4MB

  • Sample

    210505-zqcgzfllbn

  • MD5

    c6f9ef3f3a0e1ba0a82b264d6a8c846c

  • SHA1

    a78d95006242ff6584fb8533e78ae1b04c551d70

  • SHA256

    4637602d5daddbd457d57b05455cc456f1d66a20c5c045627c621f929487129d

  • SHA512

    39a7e3f80b29d0bdd9b92a3401ee99596c6b49aa125f3ce2799b26bc44fa7ddc4dd6f830801a9e46e543c6bd5444d6d81e80249ff23cf9cc69dd33099db05c49

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      c6f9ef3f_by_Libranalysis

    • Size

      1.4MB

    • MD5

      c6f9ef3f3a0e1ba0a82b264d6a8c846c

    • SHA1

      a78d95006242ff6584fb8533e78ae1b04c551d70

    • SHA256

      4637602d5daddbd457d57b05455cc456f1d66a20c5c045627c621f929487129d

    • SHA512

      39a7e3f80b29d0bdd9b92a3401ee99596c6b49aa125f3ce2799b26bc44fa7ddc4dd6f830801a9e46e543c6bd5444d6d81e80249ff23cf9cc69dd33099db05c49

    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