meduza | 7b2583e41b5bdf417f580405ff20649d9253fa1aeeac4236fa1d1173256704df

Analysis

max time kernel
35s
max time network
54s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 23:09

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General

Target

SolaraExec.exe
Size

720.4MB
MD5

2637d1d89de4cc8e2ba1328c5c15a4f0
SHA1

55556776243a82c64656252d09d05631b12a2f8c
SHA256

7b2583e41b5bdf417f580405ff20649d9253fa1aeeac4236fa1d1173256704df
SHA512

6a09fb7d2881c8e890f44b891440fd0f5b04aa3afae40edb9346e64c6d94601d8a3bdd98b566a3944ff44246682ef3ae7fd3835c52560969715ef7dde10a6fc2
SSDEEP

98304:XwV5p0JL9Ob4G4VtHDT+JY1QFBkOhZa5cOWHlrcTLB:Xw8Ob4G4b+21QFBUFUlcHB

Score

10^/10

meduza 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 2 IoCs

resource	yara_rule
behavioral1/memory/2788-11-0x0000000001DA0000-0x0000000001EDE000-memory.dmp	family_meduza
behavioral1/memory/2788-16-0x0000000001DA0000-0x0000000001EDE000-memory.dmp	family_meduza

Meduza family
meduza
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-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\International\Geo\Nation	rinjec.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	rinjec.exe

Loads dropped DLL 4 IoCs

pid	Process
3016	SolaraExec.exe
2828	WerFault.exe
2828	WerFault.exe
2828	WerFault.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	api.ipify.org

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	SolaraExec.exe
Token: SeDebugPrivilege	2788	rinjec.exe
Token: SeImpersonatePrivilege	2788	rinjec.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2788	3016	SolaraExec.exe	28
PID 3016 wrote to memory of 2788	3016	SolaraExec.exe	28
PID 3016 wrote to memory of 2788	3016	SolaraExec.exe	28
PID 2788 wrote to memory of 2828	2788	rinjec.exe	29
PID 2788 wrote to memory of 2828	2788	rinjec.exe	29
PID 2788 wrote to memory of 2828	2788	rinjec.exe	29

C:\Users\Admin\AppData\Local\Temp\SolaraExec.exe
"C:\Users\Admin\AppData\Local\Temp\SolaraExec.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\rinjec.exe
  "C:\Users\Admin\AppData\Local\Temp\rinjec.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2788 -s 656
    3⤵
    - Loads dropped DLL
    PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\rinjec.exe

Filesize
2.5MB

MD5
6d705c65e1d7d17ad88db591f0c79163

SHA1
32476fb976a6a44165789485938b47242c933a36

SHA256
546ff5ac18da41124a59be95b24d95d24d417b29a28c8dc61714364d6dd7b724

SHA512
dd3e3773acaca8fb90a41cdbbe9b2f9478e470f9754f09bbaec9e8ac3e9ba49278a67acfc603d02797144989dd94ebd07c58ea45851a82b504fb6c991d43614a

Download Submit
memory/2788-11-0x0000000001DA0000-0x0000000001EDE000-memory.dmp

Filesize
1.2MB

Download
memory/2788-16-0x0000000001DA0000-0x0000000001EDE000-memory.dmp

Filesize
1.2MB

Download
memory/3016-0-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/3016-1-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/3016-2-0x0000000000340000-0x0000000001340000-memory.dmp

Filesize
16.0MB

Download
memory/3016-3-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/3016-4-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/3016-5-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/3016-15-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download
memory/3016-17-0x000007FEF64B0000-0x000007FEF6E9C000-memory.dmp

Filesize
9.9MB

Download