meduza | dc182d5c9b26e7f6c54df8b516cf3b4b3a66895c85100accdc7f3751c3c60a76

General

Target

2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
Size

3.6MB
MD5

2efdd766c7ea80e938f375001d0b59c6
SHA1

af40b328ebcb13496a1f1bc54ef21e04b15c0eac
SHA256

dc182d5c9b26e7f6c54df8b516cf3b4b3a66895c85100accdc7f3751c3c60a76
SHA512

5d82b9edd93cbefd6c811888b8831c2eea9f408c6e93b02f6340f4f4310222f186562b2d8bd009723d200fdb6026b1d3c1065a39b9269aa354e5454fd791b88a
SSDEEP

24576:bw317sPycp8nCB3CbJE6rARaZvSn/DCQh2gqDDg0NzypyVmwXEWYdaBWmMYOLJVh:bByPnISnSuXg0VjpI2sLDkE

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

C2

62.60.217.17

Attributes

anti_dbg
true
anti_vm
true
build_name
Carrier Agreement
extensions
.txt;.doc;.docx;.pdf;.xls;.xlsx;.log;.db;.sqlite
grabber_max_size
1.048576e+06
port
15666
self_destruct
true

Signatures

Meduza
Meduza is a crypto wallet and info stealer written in C++.
stealer meduza

Meduza Stealer payload 9 IoCs

resource	yara_rule
behavioral1/memory/2296-8-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-10-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-11-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-6-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-5-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-4-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-3-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-27-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2296-28-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza

Meduza family
meduza

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\International\Geo\Nation	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe

Deletes itself 1 IoCs

pid	Process
2928	cmd.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	api.ipify.org
6	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2220 set thread context of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2928	cmd.exe
2352	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2352	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2296	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
Token: SeImpersonatePrivilege	2296	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2220 wrote to memory of 2296	2220	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	29
PID 2296 wrote to memory of 2928	2296	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	31
PID 2296 wrote to memory of 2928	2296	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	31
PID 2296 wrote to memory of 2928	2296	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe	31
PID 2928 wrote to memory of 2352	2928	cmd.exe	33
PID 2928 wrote to memory of 2352	2928	cmd.exe	33
PID 2928 wrote to memory of 2352	2928	cmd.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
  C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2296
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\2024-11-06_2efdd766c7ea80e938f375001d0b59c6_ryuk.exe"
    3⤵
    - Deletes itself
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2928
  - - C:\Windows\system32\PING.EXE
      ping 1.1.1.1 -n 1 -w 3000
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2296-0-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-8-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-10-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-11-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-7-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp

Filesize
4KB

Download
memory/2296-6-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-5-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-4-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-3-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-2-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-1-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-27-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2296-28-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download

Analysis

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