meduza | b1a638cc1c6fab24c26193035daa72cdc459deebf7a11de130cf41a4218e81d0

General

Target

setup_run.exe
Size

1.7MB
MD5

f9e546bb5a4898d65b61f8b3d93a1662
SHA1

a4f5d8c4fec7657211c71c31f92d347cad13b1c8
SHA256

b1a638cc1c6fab24c26193035daa72cdc459deebf7a11de130cf41a4218e81d0
SHA512

a98fdb03a485051f33ea092b0805d2c2f3e2d3a3a58697a120459139ab2b6c94c27910467cc863ad78defcbf7d90f2edd81fb2356daa9f76bb448e9cf609e037
SSDEEP

49152:ubo95a6iGYtRzPWn9jbijSv3ZXYUYpyc2y5BkA:eBP0OSvZXwpcy5Bk

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
behavioral3/memory/1708-6-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral3/memory/1708-10-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral3/memory/1708-7-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral3/memory/1708-4-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral3/memory/1708-17-0x0000000140000000-0x000000014013B000-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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	setup_run.exe

Executes dropped EXE 1 IoCs

pid	Process
1708	setup_run.exe

Loads dropped DLL 1 IoCs

pid	Process
3828	setup_run.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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_run.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_run.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_run.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_run.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_run.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 3828 set thread context of 1708	3828	setup_run.exe	83

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

NTFS ADS 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1708	setup_run.exe
1708	setup_run.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	setup_run.exe
Token: SeImpersonatePrivilege	1708	setup_run.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83
PID 3828 wrote to memory of 1708	3828	setup_run.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_run.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	setup_run.exe

C:\Users\Admin\AppData\Local\Temp\setup_run.exe
"C:\Users\Admin\AppData\Local\Temp\setup_run.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:3828
- C:\Users\Admin\AppData\Local\Temp\setup_run.exe
  "C:\Users\Admin\AppData\Local\Temp\setup_run.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1708

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

System Information Discovery

1

T1082

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_run.exe

Filesize
1.7MB

MD5
f9e546bb5a4898d65b61f8b3d93a1662

SHA1
a4f5d8c4fec7657211c71c31f92d347cad13b1c8

SHA256
b1a638cc1c6fab24c26193035daa72cdc459deebf7a11de130cf41a4218e81d0

SHA512
a98fdb03a485051f33ea092b0805d2c2f3e2d3a3a58697a120459139ab2b6c94c27910467cc863ad78defcbf7d90f2edd81fb2356daa9f76bb448e9cf609e037

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

Filesize
1.4MB

MD5
4ab64f8774087d5abee3d3e9948a9300

SHA1
cb42ed04a1b24fdaf69e830cad784c43d573d0c4

SHA256
17f9d20b69fbb1a76558ad6a16629246f9834fb4e0c9813235c7190a3eeb0c02

SHA512
7a3251844d7d633f150a623a8c208376e884baa00cd4e7162220f8c568a6fcb5c8ce7a024a43d0b55fde3a2280a74c21da8b8667793df6ab7a6f9f8091de51ac

Download Submit
memory/1708-6-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1708-10-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1708-7-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1708-4-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/1708-17-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/3828-9-0x00007FFAE5140000-0x00007FFAE52A4000-memory.dmp

Filesize
1.4MB

Download
memory/3828-8-0x00007FF66A5B0000-0x00007FF66A765000-memory.dmp

Filesize
1.7MB

Download

Analysis

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