meduza | 93626f2a12a4ab1fbe7e284af0a3368c4041e58428f18429acc64d3f09067a29

General

Target

chelentano.exe
Size

4.1MB
MD5

dd0b9382bc7d77840b168800bc8cb812
SHA1

d5b635efbf79662929b311572e41d7ea612749cc
SHA256

93626f2a12a4ab1fbe7e284af0a3368c4041e58428f18429acc64d3f09067a29
SHA512

d59b6f1496eade71a929c054523fa4815b5786226e0f1a62a6c0855ce5f2d2759ade49f1c00f657474c87a0d0a8a01fbc49644a766dde3556ccc9994152679de
SSDEEP

49152:qxGK0l3e3uIR/ubXjQI9WOizBV4gxvQwnZ:qxGK09yuyZ

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 6 IoCs

resource	yara_rule
behavioral1/memory/3376-4-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/3376-5-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/3376-6-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/3376-7-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/3376-16-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza
behavioral1/memory/3376-17-0x0000000140000000-0x000000014013E000-memory.dmp	family_meduza

Meduza 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-1-5-21-2319007114-3335580451-2147236418-1000\Control Panel\International\Geo\Nation	chelentano.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-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	chelentano.exe
Key opened	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	chelentano.exe
Key opened	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	chelentano.exe
Key opened	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	chelentano.exe
Key opened	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	chelentano.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
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 572 set thread context of 3376	572	chelentano.exe	83

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3376	chelentano.exe
3376	chelentano.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3376	chelentano.exe
Token: SeImpersonatePrivilege	3376	chelentano.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83
PID 572 wrote to memory of 3376	572	chelentano.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	chelentano.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	chelentano.exe

C:\Users\Admin\AppData\Local\Temp\chelentano.exe
"C:\Users\Admin\AppData\Local\Temp\chelentano.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:572
- C:\Users\Admin\AppData\Local\Temp\chelentano.exe
  C:\Users\Admin\AppData\Local\Temp\chelentano.exe
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3376

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

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Downloads

memory/572-0-0x00007FF5ED870000-0x00007FF5ED871000-memory.dmp

Filesize
4KB

Download
memory/3376-4-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3376-5-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3376-6-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3376-7-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3376-16-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download
memory/3376-17-0x0000000140000000-0x000000014013E000-memory.dmp

Filesize
1.2MB

Download

Analysis

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