meduza | b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166

General

Target

b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
Size

1.5MB
MD5

bfa4c290eec9bbef7a87fc4f9ef3bb80
SHA1

c6c3e0baa1927aec0880af15533a796c780b480a
SHA256

b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166
SHA512

f7f9065b71c61b51d0597af4a5a0b2b18c2461f7f7cb1e317d89eb718ba5a9f59dd10dc7cba3d93a99ad8ed121bea451728653f0ff1d6d3e2c9a7d8eb42a6e25
SSDEEP

49152:DMakpA5kKiJk8sxVJVJGhOXlZKPrpDtobev:BxxJAvDt7

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

C2

79.137.202.152

Attributes

anti_dbg
true
anti_vm
true
build_name
Kitten
extensions
.txt;.doc;.docx;.pdf;.xls;.xlsx
grabber_max_size
4.194304e+06
port
15666
self_destruct
false

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/2288-7-0x0000000140000000-0x0000000140117000-memory.dmp	family_meduza
behavioral2/memory/2288-10-0x0000000140000000-0x0000000140117000-memory.dmp	family_meduza
behavioral2/memory/2288-6-0x0000000140000000-0x0000000140117000-memory.dmp	family_meduza
behavioral2/memory/2288-4-0x0000000140000000-0x0000000140117000-memory.dmp	family_meduza
behavioral2/memory/2288-19-0x0000000140000000-0x0000000140117000-memory.dmp	family_meduza
behavioral2/memory/2288-20-0x0000000140000000-0x0000000140117000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe

Executes dropped EXE 1 IoCs

pid	Process
2288	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe

Loads dropped DLL 1 IoCs

pid	Process
4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.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 4496 set thread context of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84

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\b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe:a.dll	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2288	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
2288	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84
PID 4496 wrote to memory of 2288	4496	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe

C:\Users\Admin\AppData\Local\Temp\b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
"C:\Users\Admin\AppData\Local\Temp\b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Users\Admin\AppData\Local\Temp\b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe
  "C:\Users\Admin\AppData\Local\Temp\b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - outlook_office_path
  - outlook_win_path
  PID:2288

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe

Filesize
1.5MB

MD5
bfa4c290eec9bbef7a87fc4f9ef3bb80

SHA1
c6c3e0baa1927aec0880af15533a796c780b480a

SHA256
b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166

SHA512
f7f9065b71c61b51d0597af4a5a0b2b18c2461f7f7cb1e317d89eb718ba5a9f59dd10dc7cba3d93a99ad8ed121bea451728653f0ff1d6d3e2c9a7d8eb42a6e25

Download Submit
C:\Users\Admin\AppData\Local\Temp\b446363802decb136351f6d7cbe7f74288c6b27d3ce6df1195d7bb455a1dc166N.exe:a.dll

Filesize
1.2MB

MD5
974ea91233f52ffd144dea2ddcad90b9

SHA1
1a4d2b6e4bca4e6f0d504a843379bb0ad567c78d

SHA256
72bbdf3a9da8f55b8ac87084f427f3fa8064e36c29decc2e467654373b91abdf

SHA512
1077e8043ff9dc32bb99c2516ad434bf2d0fbe1d235418788e55be17f49991776c2dd96a4b4bd3e1a7c9015d0b31c508ca3b8be01d8d0a44f49589ddc38ac109

Download Submit
memory/2288-7-0x0000000140000000-0x0000000140117000-memory.dmp

Filesize
1.1MB

Download
memory/2288-10-0x0000000140000000-0x0000000140117000-memory.dmp

Filesize
1.1MB

Download
memory/2288-6-0x0000000140000000-0x0000000140117000-memory.dmp

Filesize
1.1MB

Download
memory/2288-4-0x0000000140000000-0x0000000140117000-memory.dmp

Filesize
1.1MB

Download
memory/2288-19-0x0000000140000000-0x0000000140117000-memory.dmp

Filesize
1.1MB

Download
memory/2288-20-0x0000000140000000-0x0000000140117000-memory.dmp

Filesize
1.1MB

Download
memory/4496-9-0x00007FFEAF520000-0x00007FFEAF65F000-memory.dmp

Filesize
1.2MB

Download
memory/4496-8-0x00007FF765200000-0x00007FF765390000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing