Overview

overview

10

Static

static

c90e6f66f7...48.exe

windows7_x64

10

c90e6f66f7...48.exe

windows10_x64

10

Sharing

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General

  • Target

    c90e6f66f74c4c2620aff75978b6ec993fbf3b133d6a1b99fa83c82e62109748

  • Size

    748KB

  • Sample

    210511-4ay5vdg3gn

  • MD5

    395eab19e7ab2768627aca6366242276

  • SHA1

    4a45ef006df9e65332251f9ee7b49a83fbed3b26

  • SHA256

    c90e6f66f74c4c2620aff75978b6ec993fbf3b133d6a1b99fa83c82e62109748

  • SHA512

    614e77f13ace77a874386ff84dfcadf86a90db5a84ca7dbaa3ea8f4507b5c36fda273a8e4d58c95a65ead1859f8e2a240ecacd50a55d20b6daacbcde930ca6f5

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      c90e6f66f74c4c2620aff75978b6ec993fbf3b133d6a1b99fa83c82e62109748

    • Size

      748KB

    • MD5

      395eab19e7ab2768627aca6366242276

    • SHA1

      4a45ef006df9e65332251f9ee7b49a83fbed3b26

    • SHA256

      c90e6f66f74c4c2620aff75978b6ec993fbf3b133d6a1b99fa83c82e62109748

    • SHA512

      614e77f13ace77a874386ff84dfcadf86a90db5a84ca7dbaa3ea8f4507b5c36fda273a8e4d58c95a65ead1859f8e2a240ecacd50a55d20b6daacbcde930ca6f5

    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