meduza | 5af85811de6f6fd6a666e535d142aa0e36a1021bafe155f9af9a38b9f9f94f55

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 10:44

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General

Target

Solara.exe
Size

661.5MB
MD5

32afedd1343f2201b4ba1b3f647a06c0
SHA1

09430e44c1f90e0e4cd247a7f60af767a5f0ed01
SHA256

8ff929bb2e7cc8033cfa6927a7634d8c5cf6582f3be8a41bbc430b99ebbc64f5
SHA512

52551f51408660145b014b0f3e32fb61195a2e270ac6af9c4c639e5085f758db8bb27a466358895ed5772ca04269f7cb058ecb51cebc9286fa2e15dbdefada4a
SSDEEP

98304:d57plQ1rRPyQRUbhFVSDoWGbqNv2ODzfIlgrSdJD:DplMRPyQRUbhFwDp2+5fpSdJ

Score

10^/10

meduza collection discovery spyware stealer

Malware Config

Extracted

Family

meduza

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 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4800-25-0x0000015721A20000-0x0000015721B5E000-memory.dmp	family_meduza
behavioral2/memory/4800-35-0x0000015721A20000-0x0000015721B5E000-memory.dmp	family_meduza
behavioral2/memory/4800-36-0x0000015721A20000-0x0000015721B5E000-memory.dmp	family_meduza

Meduza family
meduza
Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Solara.exeinstaller.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	Solara.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	installer.exe

Executes dropped EXE 1 IoCs

Processes:

installer.exe

pid	Process
4800	installer.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

Processes:

installer.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installer.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installer.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.

Processes:

flow	ioc
23	api.ipify.org
24	api.ipify.org

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Solara.exeinstaller.exe

pid	Process
2620	Solara.exe
4800	installer.exe
4800	installer.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

Solara.exeinstaller.exe

description	pid	Process
Token: SeDebugPrivilege	2620	Solara.exe
Token: SeDebugPrivilege	4800	installer.exe
Token: SeImpersonatePrivilege	4800	installer.exe
Token: SeIncreaseQuotaPrivilege	2620	Solara.exe
Token: SeSecurityPrivilege	2620	Solara.exe
Token: SeTakeOwnershipPrivilege	2620	Solara.exe
Token: SeLoadDriverPrivilege	2620	Solara.exe
Token: SeSystemProfilePrivilege	2620	Solara.exe
Token: SeSystemtimePrivilege	2620	Solara.exe
Token: SeProfSingleProcessPrivilege	2620	Solara.exe
Token: SeIncBasePriorityPrivilege	2620	Solara.exe
Token: SeCreatePagefilePrivilege	2620	Solara.exe
Token: SeBackupPrivilege	2620	Solara.exe
Token: SeRestorePrivilege	2620	Solara.exe
Token: SeShutdownPrivilege	2620	Solara.exe
Token: SeDebugPrivilege	2620	Solara.exe
Token: SeSystemEnvironmentPrivilege	2620	Solara.exe
Token: SeRemoteShutdownPrivilege	2620	Solara.exe
Token: SeUndockPrivilege	2620	Solara.exe
Token: SeManageVolumePrivilege	2620	Solara.exe
Token: 33	2620	Solara.exe
Token: 34	2620	Solara.exe
Token: 35	2620	Solara.exe
Token: 36	2620	Solara.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

Solara.exe

description	pid	Process	procid_target
PID 2620 wrote to memory of 4800	2620	Solara.exe	88
PID 2620 wrote to memory of 4800	2620	Solara.exe	88

outlook_office_path 1 IoCs

Processes:

installer.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installer.exe

outlook_win_path 1 IoCs

Processes:

installer.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	installer.exe

C:\Users\Admin\AppData\Local\Temp\Solara.exe
"C:\Users\Admin\AppData\Local\Temp\Solara.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Users\Admin\AppData\Local\Temp\installer.exe
  "C:\Users\Admin\AppData\Local\Temp\installer.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:4800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ef1xdopl.qrw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
3.2MB

MD5
f16649c66acae1badb27a896fd9e97c5

SHA1
179c138197c7b6fa3c8741398d895a757d745620

SHA256
011be31b68624ff1b59d8733e7196d5be6015adba63cc7962c9f300f72a95199

SHA512
c972643df907598bde50ff812411a76670e5ec9194e6aa6f47abd445ea0b74f91a2eee41a52cb6b8bfd0ac1aef2759653c4bb582a3b6ce9daa42779a2e5814b0

Download Submit
memory/2620-3-0x00007FFCC9F23000-0x00007FFCC9F25000-memory.dmp

Filesize
8KB

Download
memory/2620-0-0x00007FFCC9F23000-0x00007FFCC9F25000-memory.dmp

Filesize
8KB

Download
memory/2620-4-0x00007FFCC9F20000-0x00007FFCCA9E1000-memory.dmp

Filesize
10.8MB

Download
memory/2620-5-0x00007FFCC9F20000-0x00007FFCCA9E1000-memory.dmp

Filesize
10.8MB

Download
memory/2620-2-0x00007FFCC9F20000-0x00007FFCCA9E1000-memory.dmp

Filesize
10.8MB

Download
memory/2620-15-0x000001895A4E0000-0x000001895A502000-memory.dmp

Filesize
136KB

Download
memory/2620-1-0x0000018930C20000-0x0000018931C20000-memory.dmp

Filesize
16.0MB

Download
memory/2620-32-0x00007FFCC9F20000-0x00007FFCCA9E1000-memory.dmp

Filesize
10.8MB

Download
memory/2620-34-0x00007FFCC9F20000-0x00007FFCCA9E1000-memory.dmp

Filesize
10.8MB

Download
memory/4800-24-0x00007FFCE8270000-0x00007FFCE8465000-memory.dmp

Filesize
2.0MB

Download
memory/4800-25-0x0000015721A20000-0x0000015721B5E000-memory.dmp

Filesize
1.2MB

Download
memory/4800-35-0x0000015721A20000-0x0000015721B5E000-memory.dmp

Filesize
1.2MB

Download
memory/4800-36-0x0000015721A20000-0x0000015721B5E000-memory.dmp

Filesize
1.2MB

Download