meduza | 9006378885c4a84699ad0f90dbe7579969e3a1b41f6fd334c4e440d30a15d063 | Triage

Analysis

max time kernel
95s
max time network
145s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
10/10/2024, 14:06

Sharing

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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
behavioral4/memory/3988-8-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/3988-9-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/3988-11-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/3988-6-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza
behavioral4/memory/3988-20-0x0000000140000000-0x000000014013B000-memory.dmp	family_meduza

Executes dropped EXE 1 IoCs

pid	Process
3988	Oldsetup.exe

Loads dropped DLL 1 IoCs

pid	Process
3324	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-1-5-21-2499603254-3415597248-1508446358-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe
Key opened	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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
2	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3324 set thread context of 3988	3324	Oldsetup.exe	77

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
3324	Oldsetup.exe
3324	Oldsetup.exe
3324	Oldsetup.exe
3324	Oldsetup.exe
3988	Oldsetup.exe
3988	Oldsetup.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3988	Oldsetup.exe
Token: SeImpersonatePrivilege	3988	Oldsetup.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77
PID 3324 wrote to memory of 3988	3324	Oldsetup.exe	77

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Oldsetup.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\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:3324
- C:\Users\Admin\AppData\Local\Temp\Oldsetup.exe
  "C:\Users\Admin\AppData\Local\Temp\Oldsetup.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3988

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

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\Oldsetup.exe

Filesize
2.6MB

MD5
98e56fc6276f5ea11ed37de5b40116d3

SHA1
882fd2c385eeaffec3881b3262de638ff912f276

SHA256
9006378885c4a84699ad0f90dbe7579969e3a1b41f6fd334c4e440d30a15d063

SHA512
978c3f3e5e866db2cc59a3474a6b75291b3eba44d445887c2afd50218dce776a650822eb67118481e62411b02102c7e49a1dc99db507d4cca59d0253b5b1a19b

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

Filesize
1.4MB

MD5
217fadc021c5e644e590d0ec31a27702

SHA1
074b2b10054362719e9d5dc346fbbd4607ee6e13

SHA256
a05dbdb3c4e03ade632d6b338d683839fe068a3328654d3e066c944b18971f5d

SHA512
466f5e7034268df4112cda2c330e81747b1cc5e76f6f5f6359290506c750da4fff2f198e2087523470c709951758d38d1a9f0490edb332c667b1952e931f24fa

Download Submit
memory/3324-0-0x00007FF754FC0000-0x00007FF755266000-memory.dmp

Filesize
2.6MB

Download
memory/3324-10-0x00007FF754FC0000-0x00007FF755266000-memory.dmp

Filesize
2.6MB

Download
memory/3988-8-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/3988-9-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/3988-11-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/3988-6-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download
memory/3988-20-0x0000000140000000-0x000000014013B000-memory.dmp

Filesize
1.2MB

Download