meduza | bab8b9acf1a759190b26244d5e3f7315b9093270477d6d5f231245ffc38a889a | Triage

Analysis

max time kernel
92s
max time network
122s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
06-10-2024 16:11

Sharing

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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
behavioral4/memory/2244-6-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/2244-10-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/2244-7-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/2244-4-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/2244-19-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/2244-20-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza

Executes dropped EXE 1 IoCs

pid	Process
2244	setup_installer.exe

Loads dropped DLL 1 IoCs

pid	Process
4136	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-1-5-21-4272559161-3282441186-401869126-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\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 4136 set thread context of 2244	4136	setup_installer.exe	79

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
4212	cmd.exe
2544	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
2544	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2244	setup_installer.exe
2244	setup_installer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2244	setup_installer.exe
Token: SeImpersonatePrivilege	2244	setup_installer.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 4136 wrote to memory of 2244	4136	setup_installer.exe	79
PID 2244 wrote to memory of 4212	2244	setup_installer.exe	80
PID 2244 wrote to memory of 4212	2244	setup_installer.exe	80
PID 4212 wrote to memory of 2544	4212	cmd.exe	82
PID 4212 wrote to memory of 2544	4212	cmd.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\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-1-5-21-4272559161-3282441186-401869126-1000\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:4136
- C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
  "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
  2⤵
  - 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:2244
- - 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:4212
  - - 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:2544

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

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

Filesize
1.7MB

MD5
6ec2a541fa04ed26f3ab57062c525df7

SHA1
f282b317e1127a365796abd1946b01abddf28912

SHA256
bab8b9acf1a759190b26244d5e3f7315b9093270477d6d5f231245ffc38a889a

SHA512
e44dbf482d4b01b8549b28b8c93ebc53b7f408197a023a2485dd702ed26a65c9667cb96c777c65367dfbff6b0c1eb08cf7e55e7a276281462d60485235eadd73

Download Submit
C:\Users\Admin\AppData\Local\Temp\setup_installer.exe:a.dll

Filesize
1.4MB

MD5
a2a6ddf4d883030da40d090f8d12a931

SHA1
032b18f318ace3a4d983ec5704b8f42853d2e4a7

SHA256
d143310d0bf0a885b85ad7442531718ad4c3972f0ffc30c890cf1dab22e3319d

SHA512
2535098b0b2cc40a2fe9a146a92865dda96212bd8559b88ee9c3b56087710ce19ae1453d580f0c90a3e3a721d70ae1e57e2f18323f879ae62dc2dfe905050aed

Download Submit
memory/2244-6-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2244-10-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2244-7-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2244-4-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2244-19-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2244-20-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4136-9-0x00007FFBD7030000-0x00007FFBD7194000-memory.dmp

Filesize
1.4MB

Download
memory/4136-8-0x00007FF65A550000-0x00007FF65A705000-memory.dmp

Filesize
1.7MB

Download