chimera | hxxps://github[.]com/Da2dalus/The-MALWARE-Repo/blob/master/Trojan/MrsMajors/MrsMajor3[.]0[.]exe | Triage

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Overview

overview

Static

static

1

URLScan

urlscan

https://github.com/D...

windows10-ltsc_2021-x64

https://github.com/D...

android-13-x64

6

Resubmissions

18/03/2025, 19:38

250318-ycrjca1kz6 6

18/03/2025, 19:35

250318-ya273a1kx9 9

18/03/2025, 19:32

250318-x86gpsw1hs 6

18/03/2025, 19:31

250318-x8flaaw1gs 3

18/03/2025, 19:29

250318-x7f6es1kt5 10

18/03/2025, 19:25

250318-x5evks1j19 10

18/03/2025, 19:16

250318-xyyn4swzdx 8

18/03/2025, 19:13

250318-xw6a6swzb1 10

18/03/2025, 19:04

250318-xreyeswyfv 8

18/03/2025, 19:00

250318-xntmeawycw 10

Sharing

General

Target

https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Trojan/MrsMajors/MrsMajor3.0.exe
Sample

250318-xntmeawycw

Score

10^/10

chimera android discovery ransomware spyware stealer

Static task

static1

URLScan task

urlscan1

Behavioral task

behavioral1

Sample

https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Trojan/MrsMajors/MrsMajor3.0.exe

Resource

win10ltsc2021-20250314-en

chimera discovery ransomware spyware stealer

windows10-ltsc_2021-x64

27 signatures

150 seconds

Behavioral task

behavioral2

Sample

https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Trojan/MrsMajors/MrsMajor3.0.exe

Resource

android-33-x64-arm64-20240910-en

android-13-x64

3 signatures

150 seconds

Malware Config

Targets

- Target
  
  https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Trojan/MrsMajors/MrsMajor3.0.exe
Score

10^/10

chimera discovery ransomware spyware stealer
- Chimera
  Ransomware which infects local and network files, often distributed via Dropbox links.
  ransomware chimera
- Chimera Ransomware Loader DLL
  Drops/unpacks executable file which resembles Chimera's Loader.dll.
  ransomware
- Chimera family
  chimera
- Renames multiple (327) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Downloads MZ/PE file
- Executes dropped EXE
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

Credentials from Web Browsers

Unsecured Credentials

Credentials In Files

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Web Service

Exfiltration

Impact

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

System Checks

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

urlscan1

behavioral1

chimeradiscoveryransomwarespywarestealer

behavioral2

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