Overview

overview

10

Static

static

B06.exe

windows7_x64

10

B06.exe

windows10_x64

10

Resubmissions

04-10-2021 11:00

211004-m37gpsgccl 10

20-09-2021 11:57

210920-n4q2sagfap 10

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General

  • Target

    B06.exe

  • Size

    4.5MB

  • Sample

    210920-n4q2sagfap

  • MD5

    49fb0e5a3415155c24d6839250cd7fed

  • SHA1

    69fa4c797df21b98740368c268cfd1919bf4a6e0

  • SHA256

    f2a155473c06ecad973676f1e2a8d228ab4a8adf32a87477c716f31fddf6cbaf

  • SHA512

    4bcf713b36e0c0bd1e12018cc835a988dbbb2d54556531ebddf97435fd430dab0393fe55e16de5b0c894a49fbea7829f2e6cba5214230f4ee70978a6a87ce397

Score
10/10
medusalockerevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      B06.exe

    • Size

      4.5MB

    • MD5

      49fb0e5a3415155c24d6839250cd7fed

    • SHA1

      69fa4c797df21b98740368c268cfd1919bf4a6e0

    • SHA256

      f2a155473c06ecad973676f1e2a8d228ab4a8adf32a87477c716f31fddf6cbaf

    • SHA512

      4bcf713b36e0c0bd1e12018cc835a988dbbb2d54556531ebddf97435fd430dab0393fe55e16de5b0c894a49fbea7829f2e6cba5214230f4ee70978a6a87ce397

    Score
    10/10
    medusalockerevasionpersistenceransomwarespywarestealer

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

      ransomwaremedusalocker

    • MedusaLocker Payload

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Drops file in Drivers directory

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Deletes itself

    • 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 desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1
T1059

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

File Deletion

3
T1107

Modify Registry

3
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

4
T1490

Tasks