meduza | 376cff4973894ab386aa8e788c5033189bacd66a39f9da1ae20ee18ced749ab9

General

Target

BTC-Stealer.exe
Size

201.3MB
MD5

de367e953006531022f59c6c3700e4b4
SHA1

ea0383a88ba077c29cfbbd5c14ffc03497d0fea3
SHA256

3b3e5cd21b9ee308ce4a04e1a7a1f0f2c5f44fc6633300b57bddd3ffa41a04e3
SHA512

a043571e267131eded7a04f9221e8cb8f5ba7608fadf2a48bed6fc2ab5f98a157ab375bff4c342755dad64e994cc545c07fe919f1e52c649a640f1f6019f41ab
SSDEEP

6144:SitPBXe1j1agJRe6qTF38D6t6HTOJcmhrf:SuBmagJRe6qc6t6z2f

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

C2

45.130.145.152

Attributes

anti_dbg
true
anti_vm
true
build_name
Work
extensions
.txt;.doc;.docx;.pdf;.xls;.xlsx;.log;.db;.sqlite
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 3 IoCs

resource	yara_rule
behavioral2/memory/2020-23-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral2/memory/2020-32-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral2/memory/2020-33-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza

Meduza family
meduza
Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 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	BTC-Stealer.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe

Executes dropped EXE 1 IoCs

pid	Process
2020	0260ca7f-f571-49d5-ac8c-08c99eb66659.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	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0260ca7f-f571-49d5-ac8c-08c99eb66659.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
22	api.ipify.org
23	api.ipify.org

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2020	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe
2020	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	BTC-Stealer.exe
Token: SeDebugPrivilege	2020	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe
Token: SeImpersonatePrivilege	2020	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2020	2688	BTC-Stealer.exe	93
PID 2688 wrote to memory of 2020	2688	BTC-Stealer.exe	93

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	0260ca7f-f571-49d5-ac8c-08c99eb66659.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	0260ca7f-f571-49d5-ac8c-08c99eb66659.exe

C:\Users\Admin\AppData\Local\Temp\BTC-Stealer.exe
"C:\Users\Admin\AppData\Local\Temp\BTC-Stealer.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\fe00c245-9b1f-4d35-b6ed-f1e6a2448f97\0260ca7f-f571-49d5-ac8c-08c99eb66659.exe
  "C:\Users\Admin\AppData\Local\Temp\fe00c245-9b1f-4d35-b6ed-f1e6a2448f97\0260ca7f-f571-49d5-ac8c-08c99eb66659.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:2020

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

2

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\fe00c245-9b1f-4d35-b6ed-f1e6a2448f97\0260ca7f-f571-49d5-ac8c-08c99eb66659.exe

Filesize
2.2MB

MD5
21506ae1a222c3862c04d187b07ed714

SHA1
c70d79f32b962bf2e7e7901034aaedd8f2e71e35

SHA256
267e274b75ba1c49847eb93d95be90b6382768926e9c3674d115c21c3cc6f2c4

SHA512
351b4739f56820e271887d953ce1fdf68e19c11e84db9325e6f03866c0fc0ec1f6072db03a4013aa914f21990367fc207bfa0f9c41452553d5960881046a034f

Download Submit
memory/2020-33-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2020-32-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2020-23-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/2020-15-0x00007FF6C0350000-0x00007FF6C0351000-memory.dmp

Filesize
4KB

Download
memory/2688-3-0x00007FFD9BA43000-0x00007FFD9BA45000-memory.dmp

Filesize
8KB

Download
memory/2688-6-0x00007FFD9BA40000-0x00007FFD9C501000-memory.dmp

Filesize
10.8MB

Download
memory/2688-5-0x00007FFD9BA40000-0x00007FFD9C501000-memory.dmp

Filesize
10.8MB

Download
memory/2688-4-0x00007FFD9BA40000-0x00007FFD9C501000-memory.dmp

Filesize
10.8MB

Download
memory/2688-0-0x00007FFD9BA43000-0x00007FFD9BA45000-memory.dmp

Filesize
8KB

Download
memory/2688-31-0x00007FFD9BA40000-0x00007FFD9C501000-memory.dmp

Filesize
10.8MB

Download
memory/2688-2-0x00007FFD9BA40000-0x00007FFD9C501000-memory.dmp

Filesize
10.8MB

Download
memory/2688-1-0x0000021154A20000-0x0000021155A20000-memory.dmp

Filesize
16.0MB

Download

Analysis

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