meduza | 9ab3cbe05be213d922baf562f6c06efc3fffc177155cc9129e85dcc2b49e1943

General

Target

launcher.exe
Size

2.7MB
MD5

412d3d31bc2e7944c65d5d06006337c7
SHA1

ee0bc9b5dafb5cdb1b26105de453c56f18ca3dd7
SHA256

9ab3cbe05be213d922baf562f6c06efc3fffc177155cc9129e85dcc2b49e1943
SHA512

d882a68eba71acbaa0f0df88bb0260c8c079aa2c20839c64789695b8337a76f7e50a292beb933dbec2fa4e9e4b25302fd6e560eddc23afc4de4138102c51ddbe
SSDEEP

49152:13fPExpyTgV6j7JHBatLHN8KxTOe63UQmlmwszyZ1:+tWUQ8l

Score

10^/10

meduza collection discovery execution spyware stealer

Malware Config

Extracted

Family

meduza

C2

193.3.19.151

Attributes

anti_dbg
true
anti_vm
true
build_name
hdont
extensions
.txt
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 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000023b6f-13.dat	family_meduza

Meduza family
meduza

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1144	powershell.exe

Downloads MZ/PE file

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	duschno.exe

Executes dropped EXE 1 IoCs

pid	Process
2028	duschno.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	duschno.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	duschno.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	duschno.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	duschno.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	duschno.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
8	api.ipify.org
10	api.ipify.org

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1144	powershell.exe
1144	powershell.exe
2028	duschno.exe
2028	duschno.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1144	powershell.exe
Token: SeDebugPrivilege	2028	duschno.exe
Token: SeImpersonatePrivilege	2028	duschno.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 1144	4508	launcher.exe	84
PID 4508 wrote to memory of 1144	4508	launcher.exe	84
PID 4508 wrote to memory of 3924	4508	launcher.exe	85
PID 4508 wrote to memory of 3924	4508	launcher.exe	85
PID 3924 wrote to memory of 2028	3924	cmd.exe	86
PID 3924 wrote to memory of 2028	3924	cmd.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	duschno.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	duschno.exe

C:\Users\Admin\AppData\Local\Temp\launcher.exe
"C:\Users\Admin\AppData\Local\Temp\launcher.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command "Add-MpPreference -ExclusionProcess \"C:\Users\Admin\AppData\Local\Temp\duschno.exe\""
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1144
- C:\Windows\system32\cmd.exe
  "cmd" /C C:\Users\Admin\AppData\Local\Temp\duschno.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3924
- - C:\Users\Admin\AppData\Local\Temp\duschno.exe
    C:\Users\Admin\AppData\Local\Temp\duschno.exe
    3⤵
    - 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:2028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iupto00y.hbn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\duschno.exe

Filesize
1.2MB

MD5
c6813da66eba357d0deaa48c2f7032b8

SHA1
6812e46c51f823ff0b0ee17bfce0af72f857af66

SHA256
1420f60f053c3ea5605239ee431e5f487245108b1c01be75d16b5246156fa178

SHA512
19391c6b12ba8f34a5faf326f8986ef8de4729d614d72bf438c6efa569b3505159ca55f580fe2a02642e5e7a0f1b38a7a9db9f0d66d67ba548d84c230183159e

Download Submit
memory/1144-1-0x00007FFEC8FE3000-0x00007FFEC8FE5000-memory.dmp

Filesize
8KB

Download
memory/1144-11-0x0000023FF4DF0000-0x0000023FF4E12000-memory.dmp

Filesize
136KB

Download
memory/1144-15-0x00007FFEC8FE0000-0x00007FFEC9AA1000-memory.dmp

Filesize
10.8MB

Download
memory/1144-16-0x00007FFEC8FE0000-0x00007FFEC9AA1000-memory.dmp

Filesize
10.8MB

Download
memory/1144-25-0x00007FFEC8FE0000-0x00007FFEC9AA1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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