medusalocker | 4f9a833e79092006c06203a66b41fc9250bcebcee148fea404db75d52035131c | Triage

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Overview

overview

Static

static

4f9a833e79...in.exe

windows7_x64

4f9a833e79...in.exe

windows10_x64

Sharing

General

Target

4f9a833e79092006c06203a66b41fc9250bcebcee148fea404db75d52035131c.bin
Size

669KB
Sample

210808-3dcrfzz2ae
MD5

4ef811b784b985769645e03bc0b9cd24
SHA1

2e04a37b215dd2a95694b1c18dbe1dd35be5aa9f
SHA256

4f9a833e79092006c06203a66b41fc9250bcebcee148fea404db75d52035131c
SHA512

34e9a5a015b04ae904b50a0b2e466788db16d7eb43769fec156cab830932032174b3a43a206016332f99eb16571225dc1a0a0042ce2bca67de1821bbc08c039c

Score

10^/10

medusalocker evasion ransomware spyware stealer trojan

Static task

static1

Behavioral task

behavioral1

Sample

4f9a833e79092006c06203a66b41fc9250bcebcee148fea404db75d52035131c.bin.exe

Resource

win7v20210410

medusalocker evasion ransomware spyware stealer trojan

windows7_x64

0 signatures

0 seconds

Behavioral task

behavioral2

Sample

4f9a833e79092006c06203a66b41fc9250bcebcee148fea404db75d52035131c.bin.exe

Resource

win10v20210408

medusalocker evasion ransomware spyware stealer trojan

windows10_x64

0 signatures

0 seconds

Malware Config

Targets

- Target
  
  4f9a833e79092006c06203a66b41fc9250bcebcee148fea404db75d52035131c.bin
- Size
  
  669KB
- MD5
  
  4ef811b784b985769645e03bc0b9cd24
- SHA1
  
  2e04a37b215dd2a95694b1c18dbe1dd35be5aa9f
- SHA256
  
  4f9a833e79092006c06203a66b41fc9250bcebcee148fea404db75d52035131c
- SHA512
  
  34e9a5a015b04ae904b50a0b2e466788db16d7eb43769fec156cab830932032174b3a43a206016332f99eb16571225dc1a0a0042ce2bca67de1821bbc08c039c
Score

10^/10

medusalocker evasion ransomware spyware stealer trojan
- MedusaLocker
  Ransomware with several variants first seen in September 2019.
  ransomware medusalocker
- MedusaLocker Payload
- UAC bypass
  evasion trojan
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Checks whether UAC is enabled
  evasion trojan
- Drops desktop.ini file(s)
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Bypass User Account Control

Defense Evasion

Bypass User Account Control

Disabling Security Tools

File Deletion

Modify Registry

Credential Access

Credentials in Files

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Inhibit System Recovery

Tasks

static1

behavioral1

medusalockerevasionransomwarespywarestealertrojan

behavioral2

medusalockerevasionransomwarespywarestealertrojan

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