meduza | bab8b9acf1a759190b26244d5e3f7315b9093270477d6d5f231245ffc38a889a | Triage

Analysis

max time kernel
134s
max time network
135s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
06-10-2024 16:11

Sharing

Report Analysis Logs

General

Target

setup_installer.exe
Size

1.7MB
MD5

6ec2a541fa04ed26f3ab57062c525df7
SHA1

f282b317e1127a365796abd1946b01abddf28912
SHA256

bab8b9acf1a759190b26244d5e3f7315b9093270477d6d5f231245ffc38a889a
SHA512

e44dbf482d4b01b8549b28b8c93ebc53b7f408197a023a2485dd702ed26a65c9667cb96c777c65367dfbff6b0c1eb08cf7e55e7a276281462d60485235eadd73
SSDEEP

24576:wGbopD5a6pYGYamhD5+Pf5tWpd5GMUJx8tY9+2JuSsqSkVQX9rQochzH:dbo95a6iGYr5gfGpd5GMJtYg2HSI4Qo

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

C2

79.137.202.152

Signatures

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

Meduza Stealer payload 6 IoCs

resource	yara_rule
behavioral1/memory/4768-6-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/4768-4-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/4768-7-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/4768-10-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/4768-19-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/4768-20-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\Control Panel\International\Geo\Nation	setup_installer.exe

Executes dropped EXE 1 IoCs

pid	Process
4768	setup_installer.exe

Loads dropped DLL 1 IoCs

pid	Process
1768	setup_installer.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

Email Collection

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.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
2	api.ipify.org
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1768 set thread context of 4768	1768	setup_installer.exe	72

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.

Internet Connection Discovery

pid	Process
4456	cmd.exe
1108	PING.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\setup_installer.exe:a.dll	setup_installer.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

pid	Process
1108	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4768	setup_installer.exe
4768	setup_installer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4768	setup_installer.exe
Token: SeImpersonatePrivilege	4768	setup_installer.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 1768 wrote to memory of 4768	1768	setup_installer.exe	72
PID 4768 wrote to memory of 4456	4768	setup_installer.exe	73
PID 4768 wrote to memory of 4456	4768	setup_installer.exe	73
PID 4456 wrote to memory of 1108	4456	cmd.exe	75
PID 4456 wrote to memory of 1108	4456	cmd.exe	75

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe

C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
"C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
  "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:4768
- - 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\setup_installer.exe"
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4456
  - - 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:1108

Network

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

Remote System Discovery

System Information Discovery

System Network Configuration Discovery

Internet Connection Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\setup_installer.exe

Filesize
1.7MB

MD5
6ec2a541fa04ed26f3ab57062c525df7

SHA1
f282b317e1127a365796abd1946b01abddf28912

SHA256
bab8b9acf1a759190b26244d5e3f7315b9093270477d6d5f231245ffc38a889a

SHA512
e44dbf482d4b01b8549b28b8c93ebc53b7f408197a023a2485dd702ed26a65c9667cb96c777c65367dfbff6b0c1eb08cf7e55e7a276281462d60485235eadd73

Download Submit
memory/1768-9-0x00007FFF604F0000-0x00007FFF60654000-memory.dmp

Filesize
1.4MB

Download
memory/1768-8-0x00007FF7AFB40000-0x00007FF7AFCF5000-memory.dmp

Filesize
1.7MB

Download
memory/4768-6-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4768-4-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4768-7-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4768-10-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4768-19-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4768-20-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download