meduza | 9006378885c4a84699ad0f90dbe7579969e3a1b41f6fd334c4e440d30a15d063 | Triage

Analysis

max time kernel
145s
max time network
150s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
10/10/2024, 14:06

Sharing

Report Analysis Logs

General

Target

Oldsetup.exe
Size

2.6MB
MD5

98e56fc6276f5ea11ed37de5b40116d3
SHA1

882fd2c385eeaffec3881b3262de638ff912f276
SHA256

9006378885c4a84699ad0f90dbe7579969e3a1b41f6fd334c4e440d30a15d063
SHA512

978c3f3e5e866db2cc59a3474a6b75291b3eba44d445887c2afd50218dce776a650822eb67118481e62411b02102c7e49a1dc99db507d4cca59d0253b5b1a19b
SSDEEP

49152:HZPf0tL9d77T+WScpPNBqB0+iZjS9fQzm4qU0Hy+GtGHkyMaRV/EfZ8yd:EVScpPN3OHmUQ

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

C2

79.137.202.152

Attributes

anti_dbg
true
anti_vm
false
build_name
OurOld2
extensions
.txt;.doc;.docx;.pdf;.xls;.xlsx;.log;.db;.sqlite
grabber_max_size
1.048576e+06
port
15666
self_destruct
true

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/2384-8-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2384-10-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2384-9-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2384-6-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral1/memory/2384-20-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Control Panel\International\Geo\Nation	Oldsetup.exe

Executes dropped EXE 1 IoCs

pid	Process
2384	Oldsetup.exe

Loads dropped DLL 1 IoCs

pid	Process
4112	Oldsetup.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

Email Collection

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.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
3	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4112 set thread context of 2384	4112	Oldsetup.exe	73

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\Oldsetup.exe:a.dll	Oldsetup.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4112	Oldsetup.exe
4112	Oldsetup.exe
4112	Oldsetup.exe
4112	Oldsetup.exe
2384	Oldsetup.exe
2384	Oldsetup.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	Oldsetup.exe
Token: SeImpersonatePrivilege	2384	Oldsetup.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73
PID 4112 wrote to memory of 2384	4112	Oldsetup.exe	73

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe

C:\Users\Admin\AppData\Local\Temp\Oldsetup.exe
"C:\Users\Admin\AppData\Local\Temp\Oldsetup.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4112
- C:\Users\Admin\AppData\Local\Temp\Oldsetup.exe
  "C:\Users\Admin\AppData\Local\Temp\Oldsetup.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:2384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

Credentials from Web Browsers

Unsecured Credentials

Credentials In Files

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\Oldsetup.exe

Filesize
2.6MB

MD5
98e56fc6276f5ea11ed37de5b40116d3

SHA1
882fd2c385eeaffec3881b3262de638ff912f276

SHA256
9006378885c4a84699ad0f90dbe7579969e3a1b41f6fd334c4e440d30a15d063

SHA512
978c3f3e5e866db2cc59a3474a6b75291b3eba44d445887c2afd50218dce776a650822eb67118481e62411b02102c7e49a1dc99db507d4cca59d0253b5b1a19b

Download Submit
memory/2384-8-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2384-10-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2384-9-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2384-6-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/2384-20-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/4112-0-0x00007FF745CD0000-0x00007FF745F76000-memory.dmp

Filesize
2.6MB

Download
memory/4112-11-0x00007FF745CD0000-0x00007FF745F76000-memory.dmp

Filesize
2.6MB

Download