meduza | 777cb9e04ba8f8602d802e45648c73923450c2c19b26c613a5001168727feff3

General

Target

2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
Size

3.6MB
MD5

b3e5ea8b0d97c245897b590596063e79
SHA1

29adf01785dc7831264983a6ed7fee13cc1b9a41
SHA256

777cb9e04ba8f8602d802e45648c73923450c2c19b26c613a5001168727feff3
SHA512

e59dc93d35853d683a4ff2d1f360a8285a6b29b8c7cb3ee2cd003f0e9817c5154d6dc739edd059934bfea0711c9bdd800f23219754ce98db74c95810fc8d932e
SSDEEP

24576:bw317sPycp8nCB3ClpQtQFMeYEftQZ6jCCKb+qXyvOEjgIW0BOgewZMFJ45Xyr44:bByPnI8BRftSbivOeWy4wWN6lK28Wo

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

C2

109.107.181.162

Attributes

anti_dbg
true
anti_vm
true
build_name
6
extensions
none
grabber_max_size
1.048576e+06
links
none
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/2292-3-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-8-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-11-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-6-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-5-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-4-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-10-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-27-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/2292-28-0x0000000140000000-0x000000014013E000-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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\International\Geo\Nation	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe

Deletes itself 1 IoCs

pid	Process
2620	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-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_b3e5ea8b0d97c245897b590596063e79_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
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30

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
2620	cmd.exe
2324	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2324	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2292	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
Token: SeImpersonatePrivilege	2292	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 1992 wrote to memory of 2292	1992	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	30
PID 2292 wrote to memory of 2620	2292	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	32
PID 2292 wrote to memory of 2620	2292	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	32
PID 2292 wrote to memory of 2620	2292	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe	32
PID 2620 wrote to memory of 2324	2620	cmd.exe	34
PID 2620 wrote to memory of 2324	2620	cmd.exe	34
PID 2620 wrote to memory of 2324	2620	cmd.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe
  C:\Users\Admin\AppData\Local\Temp\2024-11-07_b3e5ea8b0d97c245897b590596063e79_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:2292
- - 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\2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk.exe"
    3⤵
    - Deletes itself
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2620
  - - 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:2324

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/2292-2-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-3-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-8-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-7-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp

Filesize
4KB

Download
memory/2292-11-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-6-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-5-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-4-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-10-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-1-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-0-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-27-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2292-28-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download

Analysis

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