meduza | 33a88f114a5ebf38ab95567ca6bf3585bbd56946226b7cbd609f73d1540fcde7

General

Target

file.exe
Size

2.7MB
MD5

4a4c31024d2aae1fe33116aeb73fce39
SHA1

b31e7d8cb99c7de4871bca5f80cd9ab9c13695e7
SHA256

33a88f114a5ebf38ab95567ca6bf3585bbd56946226b7cbd609f73d1540fcde7
SHA512

0f66ffc8162f1d7d13907ed60c23ac6b26b7abf3381039a17835bfe6403fbd1a55f483106cf5ac9db9947498a949b22f9c2f2b701ceb1e00ca4910dd1ed102e7
SSDEEP

49152:aPw34yFJzSdhPzD0mOd4606hU6HzntCR+W97dXx3F9vaV804K8wbLrut7A:F9mOd46/opvau0TBLruu

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 6 IoCs

resource	yara_rule
behavioral2/memory/1372-4-0x0000000140000000-0x000000014014F000-memory.dmp	family_meduza
behavioral2/memory/1372-10-0x0000000140000000-0x000000014014F000-memory.dmp	family_meduza
behavioral2/memory/1372-6-0x0000000140000000-0x000000014014F000-memory.dmp	family_meduza
behavioral2/memory/1372-7-0x0000000140000000-0x000000014014F000-memory.dmp	family_meduza
behavioral2/memory/1372-19-0x0000000140000000-0x000000014014F000-memory.dmp	family_meduza
behavioral2/memory/1372-20-0x0000000140000000-0x000000014014F000-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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	file.exe

Executes dropped EXE 1 IoCs

pid	Process
1372	file.exe

Loads dropped DLL 1 IoCs

pid	Process
5040	file.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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.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 5040 set thread context of 1372	5040	file.exe	84

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
1660	cmd.exe
2996	PING.EXE

NTFS ADS 1 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2996	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1372	file.exe
1372	file.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 5040 wrote to memory of 1372	5040	file.exe	84
PID 1372 wrote to memory of 1660	1372	file.exe	90
PID 1372 wrote to memory of 1660	1372	file.exe	90
PID 1660 wrote to memory of 2996	1660	cmd.exe	92
PID 1660 wrote to memory of 2996	1660	cmd.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1372
- - 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\file.exe"
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:1660
  - - 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:2996

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\file.exe

Filesize
2.7MB

MD5
4a4c31024d2aae1fe33116aeb73fce39

SHA1
b31e7d8cb99c7de4871bca5f80cd9ab9c13695e7

SHA256
33a88f114a5ebf38ab95567ca6bf3585bbd56946226b7cbd609f73d1540fcde7

SHA512
0f66ffc8162f1d7d13907ed60c23ac6b26b7abf3381039a17835bfe6403fbd1a55f483106cf5ac9db9947498a949b22f9c2f2b701ceb1e00ca4910dd1ed102e7

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

Filesize
1.4MB

MD5
9f9eb4b534437139b74f1923798cd6db

SHA1
d32118c81d6a05c4b3e97c95f9d5ccade6bb4259

SHA256
2e68b3eee6abce9aeac4e4d46578f8aa98bc28d48b84c1cfed496f2db355957a

SHA512
0519a18be81a192fd8a292c32c0c465dfc21b1317e7b594ec16126621bf57437480fdd5fcb538dd5daa06018503a353b2000c2f7254f1fb4f0151dbb97015aee

Download Submit
memory/1372-4-0x0000000140000000-0x000000014014F000-memory.dmp

Filesize
1.3MB

Download
memory/1372-10-0x0000000140000000-0x000000014014F000-memory.dmp

Filesize
1.3MB

Download
memory/1372-6-0x0000000140000000-0x000000014014F000-memory.dmp

Filesize
1.3MB

Download
memory/1372-7-0x0000000140000000-0x000000014014F000-memory.dmp

Filesize
1.3MB

Download
memory/1372-19-0x0000000140000000-0x000000014014F000-memory.dmp

Filesize
1.3MB

Download
memory/1372-20-0x0000000140000000-0x000000014014F000-memory.dmp

Filesize
1.3MB

Download
memory/5040-8-0x00007FF71F940000-0x00007FF71FBF6000-memory.dmp

Filesize
2.7MB

Download
memory/5040-9-0x00007FFDE9340000-0x00007FFDE94B8000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing