meduza | 53e61ba435664cab254edc5575697879968408d5dba46b1509c7e888c8915fe8

General

Target

Loader.exe
Size

1.7MB
MD5

37dc3bc48de9937c96b41c9ae8478b55
SHA1

9ee6ce5d510afb62df12081c86aba3d3357b51de
SHA256

b5ad3a524b78e657bb6aad58e09658870f8e8ceefb479a363a7304f3dfd5bbb1
SHA512

f60905d2d442f9cec6766a7934723057c534051b1ba807feef4f592cb69b5c1a805f4e8625d03200fd923a99a75f7a3c8195f6ff2a414d6efbf75df39b6c3aa5
SSDEEP

49152:ybo95a6iGYTFJqLLXi6hkwsPCF+2t0GY3HNv2x:SAHLsPW+qg3HNv2x

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

C2

109.107.181.162

Signatures

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

Meduza Stealer payload 5 IoCs

resource	yara_rule
behavioral1/memory/1404-6-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/1404-10-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/1404-7-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/1404-4-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/1404-19-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	Loader.exe

Executes dropped EXE 1 IoCs

pid	Process
1404	Loader.exe

Loads dropped DLL 1 IoCs

pid	Process
3960	Loader.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Loader.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Loader.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Loader.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Loader.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Loader.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
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3960 set thread context of 1404	3960	Loader.exe	82

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
2528	cmd.exe
1728	PING.EXE

NTFS ADS 1 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1728	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1404	Loader.exe
1404	Loader.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1404	Loader.exe
Token: SeImpersonatePrivilege	1404	Loader.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 3960 wrote to memory of 1404	3960	Loader.exe	82
PID 1404 wrote to memory of 2528	1404	Loader.exe	85
PID 1404 wrote to memory of 2528	1404	Loader.exe	85
PID 2528 wrote to memory of 1728	2528	cmd.exe	87
PID 2528 wrote to memory of 1728	2528	cmd.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Loader.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Loader.exe

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Users\Admin\AppData\Local\Temp\Loader.exe
  "C:\Users\Admin\AppData\Local\Temp\Loader.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:1404
- - 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\Loader.exe"
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2528
  - - 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:1728

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

Loading Replay Monitor...

Downloads

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

Filesize
1.7MB

MD5
37dc3bc48de9937c96b41c9ae8478b55

SHA1
9ee6ce5d510afb62df12081c86aba3d3357b51de

SHA256
b5ad3a524b78e657bb6aad58e09658870f8e8ceefb479a363a7304f3dfd5bbb1

SHA512
f60905d2d442f9cec6766a7934723057c534051b1ba807feef4f592cb69b5c1a805f4e8625d03200fd923a99a75f7a3c8195f6ff2a414d6efbf75df39b6c3aa5

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

Filesize
1.4MB

MD5
41adf8dcaf9d1fa61dddefb1bdb39c36

SHA1
daf0bedc0ca370993034e30c457deccfef556307

SHA256
8567b9513b67add151dfebb1b187d65248d2bd9bb9541c189808fc41198d47d2

SHA512
ad7ac052b0fd6db9cea21aa7dad680bd092f58cde6bd98dad35d5a2e77a271a357395b1eadeeaa0afaeaebe0b946d52fd6ee1bdbef824311609e957ffd98d8a2

Download Submit
memory/1404-6-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1404-10-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1404-7-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1404-4-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1404-19-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/3960-9-0x00007FF9F5680000-0x00007FF9F57E4000-memory.dmp

Filesize
1.4MB

Download
memory/3960-8-0x00007FF69BFC0000-0x00007FF69C175000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing