Overview

overview

10

Static

static

03c7c21019...b6.exe

windows7_x64

10

03c7c21019...b6.exe

windows10_x64

10

Sharing

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General

  • Target

    03c7c210191a8ae13f2caa9457a6ca0237742e6e33bedfe0788f829baf2b0db6

  • Size

    1.4MB

  • Sample

    210511-rydr1y1kda

  • MD5

    4334bd65511ac3b4d4a7331391dd8d60

  • SHA1

    2e6a2c31527819c793bbb9dafd823d9408f0799c

  • SHA256

    03c7c210191a8ae13f2caa9457a6ca0237742e6e33bedfe0788f829baf2b0db6

  • SHA512

    bcac3aef7eb16b42c77022ffa0483b97ce1f85e7679ce1a401078f60a8e459111e464672ca3a2c6f1056603e35b5e3d160e347e317b0bdd9a338804cfcc03439

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      03c7c210191a8ae13f2caa9457a6ca0237742e6e33bedfe0788f829baf2b0db6

    • Size

      1.4MB

    • MD5

      4334bd65511ac3b4d4a7331391dd8d60

    • SHA1

      2e6a2c31527819c793bbb9dafd823d9408f0799c

    • SHA256

      03c7c210191a8ae13f2caa9457a6ca0237742e6e33bedfe0788f829baf2b0db6

    • SHA512

      bcac3aef7eb16b42c77022ffa0483b97ce1f85e7679ce1a401078f60a8e459111e464672ca3a2c6f1056603e35b5e3d160e347e317b0bdd9a338804cfcc03439

    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