Malware analysis Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.7z Malicious activity

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File name:	Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.7z
Full analysis:	https://app.any.run/tasks/0bbc713a-bded-4f1d-b806-ca6ea4bb5b29
Verdict:	Malicious activity
Analysis date:	May 02, 2025, 21:10:55
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	arch-exec
Indicators:
MIME:	application/x-7z-compressed
File info:	7-zip archive data, version 0.4
MD5:	9F1078D6057471673BFC7CA10CA6EB5D
SHA1:	8344213797B881817648C92CB9F77E6C0CE7EC14
SHA256:	E742592D9D6FEFEF1AEAE1A1321B1E3CF6F122F47458D84D19BB4A4AF3DC1FB9
SSDEEP:	24576:QfY0gLKHTpvrJ5C2zlwZyWTaEw6qGC91THXyvdSNfBpT39TlFQWyms6rCM5mS:QfY5LKHTpvrJ5C2zlwZyWTaEw6q391Tj

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 60 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: none
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: off
Network:: on

Software preset

Internet Explorer 11.3636.19041.0
Adobe Acrobat (64-bit) (23.001.20093)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (6.20)
FileZilla 3.65.0 (3.65.0)
Google Chrome (122.0.6261.70)
Google Update Helper (1.3.36.51)
Java 8 Update 271 (64-bit) (8.0.2710.9)
Java Auto Updater (2.8.271.9)
Microsoft Edge (122.0.2365.59)
Microsoft Edge Update (1.3.185.17)
Microsoft Office Professional 2019 - de-de (16.0.16026.20146)
Microsoft Office Professional 2019 - en-us (16.0.16026.20146)
Microsoft Office Professional 2019 - es-es (16.0.16026.20146)
Microsoft Office Professional 2019 - it-it (16.0.16026.20146)
Microsoft Office Professional 2019 - ja-jp (16.0.16026.20146)
Microsoft Office Professional 2019 - ko-kr (16.0.16026.20146)
Microsoft Office Professional 2019 - pt-br (16.0.16026.20146)
Microsoft Office Professional 2019 - tr-tr (16.0.16026.20146)
Microsoft Office Professionnel 2019 - fr-fr (16.0.16026.20146)
Microsoft Office профессиональный 2019 - ru-ru (16.0.16026.20146)
Microsoft OneNote - en-us (16.0.16026.20146)
Microsoft Update Health Tools (3.74.0.0)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2015-2022 Redistributable (x86) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Minimum Runtime - 14.36.32532 (14.36.32532)
Mozilla Firefox (x64 en-US) (123.0)
Mozilla Maintenance Service (123.0)
Notepad++ (64-bit x64) (7.9.1)
Office 16 Click-to-Run Extensibility Component (16.0.15726.20202)
Office 16 Click-to-Run Licensing Component (16.0.16026.20146)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
PowerShell 7-x64 (7.3.5.0)
Skype version 8.104 (8.104)
Update for Windows 10 for x64-based Systems (KB4023057) (2.59.0.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.63.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
Update for Windows 10 for x64-based Systems (KB5001716) (8.93.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows PC Health Check (3.6.2204.08001)

Hotfixes

Client LanguagePack Package
DotNetRollup
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
InternetExplorer Optional Package
KB5003791
KB5011048
KB5015684
KB5033052
LanguageFeatures Basic en us Package
LanguageFeatures Handwriting en us Package
LanguageFeatures OCR en us Package
LanguageFeatures Speech en us Package
LanguageFeatures TextToSpeech en us Package
MSPaint FoD Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
OpenSSH Client Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
ProfessionalEdition
QuickAssist Package
RollupFix
ServicingStack
ServicingStack 3989
StepsRecorder Package
TabletPCMath Package
UserExperience Desktop Package
WordPad FoD Package

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MALICIOUS
- Generic archive extractor
  - WinRAR.exe (PID: 896)
- Executing a file with an untrusted certificate
  - Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe (PID: 7996)
SUSPICIOUS
No suspicious indicators.
INFO
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 896)
- Manual execution by a user
  - Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe (PID: 7996)
- Checks supported languages
  - Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe (PID: 7996)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.7z	\|	7-Zip compressed archive (v0.4) (57.1)
.7z	\|	7-Zip compressed archive (gen) (42.8)

EXIF

ZIP

FileVersion:	7z v0.04
ModifyDate:	2020:05:25 06:52:02+00:00
ArchivedFileName:	Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe

No data.

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All screenshots are available in the full report

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Total processes

133

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

896

"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\Desktop\Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.7z

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Exit code:

Version:

5.91.0

Modules

Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll

7244

C:\WINDOWS\system32\SppExtComObj.exe -Embedding

C:\Windows\System32\SppExtComObj.Exe

—

svchost.exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

KMS Connection Broker

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\sppextcomobj.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\oleaut32.dll

7276

"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent

C:\Windows\System32\slui.exe

—

SppExtComObj.Exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Windows Activation Client

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll

7996

"C:\Users\admin\Desktop\Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe"

C:\Users\admin\Desktop\Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe

explorer.exe

User:

admin

Integrity Level:

HIGH

Exit code:

Modules

Images
c:\users\admin\desktop\trojan-ransom.win32.cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\kernel.appcore.dll

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Total events

1 452

Read events

1 432

Write events

Delete events

Modification events


(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	1
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\Desktop\Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.7z
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface
Operation:	write	Name:	ShowPassword
Value: 0
(PID) Process:	(896) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\MainWin
Operation:	write	Name:	Placement
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF3D0000002D000000FD03000016020000

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
896	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$DRb896.8132\Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.exe		executable
		MD5:BCD5275B17FA251E764CC654F27A348B	SHA256:11F7BB37DD425150E6B095A8D1F3A347EE83E604302A4D9BB201900E74A81D73

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
6544	svchost.exe	GET	200	23.51.98.7:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
—	—	GET	200	23.77.197.138:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	23.223.229.143:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	23.223.229.143:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
4	System	192.168.100.255:137	—	—	—	whitelisted
—	—	51.124.78.146:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	23.77.197.138:80	crl.microsoft.com	Akamai International B.V.	FR	whitelisted
—	—	23.223.229.143:80	www.microsoft.com	Akamai International B.V.	US	whitelisted
2104	svchost.exe	51.124.78.146:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
2112	svchost.exe	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
6544	svchost.exe	20.190.159.75:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
6544	svchost.exe	23.51.98.7:80	ocsp.digicert.com	Akamai International B.V.	US	whitelisted

DNS requests

Domain	IP	Reputation
crl.microsoft.com	23.77.197.138 23.77.197.149	whitelisted
www.microsoft.com	23.223.229.143	whitelisted
google.com	172.217.23.110	whitelisted
settings-win.data.microsoft.com	4.231.128.59 20.73.194.208	whitelisted
login.live.com	20.190.159.75 20.190.159.128 40.126.31.69 40.126.31.1 20.190.159.73 40.126.31.131 40.126.31.128 40.126.31.0	whitelisted
ocsp.digicert.com	23.51.98.7	whitelisted

Threats

No threats detected

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No debug info

General Info

Trojan-Ransom.Win32.Cortex.i-11f7bb37dd425150e6b095a8d1f3a347ee83e604302a4d9bb201900e74a81d73.7z

9F1078D6057471673BFC7CA10CA6EB5D

8344213797B881817648C92CB9F77E6C0CE7EC14

E742592D9D6FEFEF1AEAE1A1321B1E3CF6F122F47458D84D19BB4A4AF3DC1FB9

24576:QfY0gLKHTpvrJ5C2zlwZyWTaEw6qGC91THXyvdSNfBpT39TlFQWyms6rCM5mS:QfY5LKHTpvrJ5C2zlwZyWTaEw6q391Tj

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Generic archive extractor

Executing a file with an untrusted certificate

SUSPICIOUS

INFO

Executable content was dropped or overwritten

Manual execution by a user

Checks supported languages

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings