meduza | b1a33532e26c7128e521428b10b2fb7e068da79b41d9fb3ed471cb50e43b5463

General

Target

2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
Size

3.6MB
MD5

7053a5df81a5ef855d1ca5a1e2a67c29
SHA1

5030fd814b639d7650d368ebcd6b920b6c719e7b
SHA256

b1a33532e26c7128e521428b10b2fb7e068da79b41d9fb3ed471cb50e43b5463
SHA512

7ddd3d8dd5374a32e0a16f74bb360387e48b35c02dd536e528fed2d83a3fcd7ed16d0d49a210da44f686d9d687ab20e7bbb63f203b0f602fd4f4ab0449a51f60
SSDEEP

49152:bByPnIuAoUpKXvOCNzkoHQQQXOksJ7Wud:

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
458
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 5 IoCs

resource	yara_rule
behavioral2/memory/3724-0-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral2/memory/3724-2-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral2/memory/3724-1-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral2/memory/3724-3-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral2/memory/3724-12-0x0000000140000000-0x000000014013E000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_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
4	api.ipify.org
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4940 set thread context of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
3332	PING.EXE
4264	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3332	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3724	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
3724	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3724	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
Token: SeImpersonatePrivilege	3724	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 4940 wrote to memory of 3724	4940	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	83
PID 3724 wrote to memory of 4264	3724	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	93
PID 3724 wrote to memory of 4264	3724	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe	93
PID 4264 wrote to memory of 3332	4264	cmd.exe	95
PID 4264 wrote to memory of 3332	4264	cmd.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Users\Admin\AppData\Local\Temp\2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe
  C:\Users\Admin\AppData\Local\Temp\2024-11-07_7053a5df81a5ef855d1ca5a1e2a67c29_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:3724
- - 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_7053a5df81a5ef855d1ca5a1e2a67c29_ryuk.exe"
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4264
  - - 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:3332

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

2

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/3724-0-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3724-2-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3724-1-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3724-3-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3724-12-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download

Analysis

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