meduza | 933da6b2d038da2be329c115f76f3d9f7ca30c54597530ac5cd6e2fa00936742

General

Target

Installer.exe
Size

1.7MB
MD5

15cde13181a78c9ffd71504cdfcf0505
SHA1

e44462ae824d859f1a8652c58fb801b61af88345
SHA256

b6fc4396c055aeed4c4065e7ade2b90a0fab6721d4854951888dd64777549fd2
SHA512

d611344eae2eae6852878948d11bf49667f3c7b528c7c7ed52ab775c4b3176c8572eac0c17edf22cb5259c613555b867dc4bb2482c298bdc672343f2a5b8d709
SSDEEP

49152:3bo95a6iGYUTsq9oeXBUPC23lyTTolbNeOt:AXoGBmGoE8

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/2504-4-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2504-10-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2504-7-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2504-6-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2504-17-0x0000000140000000-0x000000014013B000-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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	Installer.exe

Executes dropped EXE 1 IoCs

pid	Process
2504	Installer.exe

Loads dropped DLL 1 IoCs

pid	Process
4020	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

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	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
16	api.ipify.org
18	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4020 set thread context of 2504	4020	Installer.exe	81

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
5004	cmd.exe
3556	PING.EXE

NTFS ADS 1 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3556	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2504	Installer.exe
2504	Installer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	Installer.exe
Token: SeImpersonatePrivilege	2504	Installer.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 4020 wrote to memory of 2504	4020	Installer.exe	81
PID 2504 wrote to memory of 5004	2504	Installer.exe	87
PID 2504 wrote to memory of 5004	2504	Installer.exe	87
PID 5004 wrote to memory of 3556	5004	cmd.exe	89
PID 5004 wrote to memory of 3556	5004	cmd.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Installer.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Installer.exe

C:\Users\Admin\AppData\Local\Temp\Installer.exe
"C:\Users\Admin\AppData\Local\Temp\Installer.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:4020
- C:\Users\Admin\AppData\Local\Temp\Installer.exe
  "C:\Users\Admin\AppData\Local\Temp\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:2504
- - 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\Installer.exe"
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:5004
  - - 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:3556

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

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

Filesize
1.7MB

MD5
15cde13181a78c9ffd71504cdfcf0505

SHA1
e44462ae824d859f1a8652c58fb801b61af88345

SHA256
b6fc4396c055aeed4c4065e7ade2b90a0fab6721d4854951888dd64777549fd2

SHA512
d611344eae2eae6852878948d11bf49667f3c7b528c7c7ed52ab775c4b3176c8572eac0c17edf22cb5259c613555b867dc4bb2482c298bdc672343f2a5b8d709

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

Filesize
1.4MB

MD5
c796e5a89e6757e9dcca4b3b0254c4db

SHA1
7246968068598822d40bee86d29b106592c536b4

SHA256
15e9b226096dad99a55cb81cfe6e4315daedd7b89cfa35f2efc7aabbd6aa29ce

SHA512
9a883deea49e2273bb336464e3d5d04641aa3c6eb993fa6cb640c218291973b8e0053a9eed7323a811bb51f81296ecb3c596c299e71e11f94299e908e17c007f

Download Submit
memory/2504-4-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2504-10-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2504-7-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2504-6-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2504-17-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4020-8-0x00007FF79C500000-0x00007FF79C6B5000-memory.dmp

Filesize
1.7MB

Download
memory/4020-9-0x00007FF8C3080000-0x00007FF8C31E4000-memory.dmp

Filesize
1.4MB

Download

Analysis

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