meduza | 249658063881bcc13f2b21919906d68272dff1348251a2a1cb77abaf0eaf0c3d

General

Target

drop1.exe
Size

1.2MB
MD5

60b0f0816c90a313de1549890708f848
SHA1

cb8c0007e9fd7460c6cc7bb66c9dafc02b10b869
SHA256

249658063881bcc13f2b21919906d68272dff1348251a2a1cb77abaf0eaf0c3d
SHA512

ef93de31ecfb6e779fe5013165c508b202a95067c88aa8dddbffaaf74996eb7ebfd455fc7de60a90930bde808704beb7472400356e44f9c4caa47863227d77ff
SSDEEP

24576:Bdl/BxIgevnHodySw5KPwlXkV8sWGzv6VD0iNKlsTEc8qF71X:/l/85vnIdyd5QwlXkBmLNfky7F

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

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/636-1-0x0000000000400000-0x0000000000526000-memory.dmp	family_meduza
behavioral2/memory/636-2-0x0000000000400000-0x0000000000526000-memory.dmp	family_meduza
behavioral2/memory/636-3-0x0000000000400000-0x0000000000526000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	drop1.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	drop1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	drop1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	drop1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	drop1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	drop1.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
7	api.ipify.org
8	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4460 set thread context of 636	4460	drop1.exe	83

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	drop1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	drop1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
636	drop1.exe
636	drop1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	636	drop1.exe
Token: SeImpersonatePrivilege	636	drop1.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83
PID 4460 wrote to memory of 636	4460	drop1.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	drop1.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	drop1.exe

C:\Users\Admin\AppData\Local\Temp\drop1.exe
"C:\Users\Admin\AppData\Local\Temp\drop1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Users\Admin\AppData\Local\Temp\drop1.exe
  "C:\Users\Admin\AppData\Local\Temp\drop1.exe"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:636

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/636-1-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/636-2-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/636-3-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/636-4-0x0000000000D40000-0x0000000000E81000-memory.dmp

Filesize
1.3MB

Download
memory/4460-0-0x0000000000D5A000-0x0000000000D5B000-memory.dmp

Filesize
4KB

Download

Analysis

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