Malware analysis decoded_output.exe Malicious activity

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File name:	decoded_output.exe
Full analysis:	https://app.any.run/tasks/cea6287c-d33c-4d80-ae22-10fd58350991
Verdict:	Malicious activity
Threats:	Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. Remcos is a RAT type malware that attackers use to perform actions on infected machines remotely. This malware is extremely actively caped up to date with updates coming out almost every single month. Remcos ist eine Malware vom Typ RAT, mit der Angreifer aus der Ferne Aktionen auf infizierten Computern durchführen können. Diese Malware ist extrem aktiv und wird fast jeden Monat mit Updates auf den neuesten Stand gebracht. Malware Trends Tracker >>>
Analysis date:	October 06, 2024, 06:58:28
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	remcos rat
Indicators:
MIME:	application/x-dosexec
File info:	PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
MD5:	A0912626829EC19AEE158D7CEC1BD06F
SHA1:	F046BCD08DC142885A59FD9A25FD7468EF028CDF
SHA256:	E373701E9C2EC2C18ED363C6C699C1487646CF2DD696F5504F7CE24593B69205
SSDEEP:	24576:DCS935RN75NTxXyVleciNKEgMJO72mW4S2B/lVn2UXMSWteMy:DNN5RN75NTxXyVlecwKEgMJO7254DB/l

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:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
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
Client LanguagePack Package
DotNetRollup
DotNetRollup 481
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
Hello Face Package
InternetExplorer Optional 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
MSPaint FoD Package
MSPaint FoD Package
MSPaint FoD Package
MSPaint FoD Package
MSPaint FoD Package
MediaPlayer Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
Notepad FoD Package
Notepad FoD Package
Notepad FoD Package
Notepad FoD Package
OpenSSH Client Package
OpenSSH Client Package
PowerShell ISE FOD Package
PowerShell ISE FOD Package
PowerShell ISE FOD Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing PMCPPC FoD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
Printing WFS FoD Package
Printing WFS FoD Package
Printing WFS FoD Package
ProfessionalEdition
ProfessionalEdition
QuickAssist Package
QuickAssist Package
RollupFix
RollupFix
ServicingStack
ServicingStack
ServicingStack 3989
StepsRecorder Package
StepsRecorder Package
StepsRecorder Package
StepsRecorder Package
StepsRecorder Package
TabletPCMath Package
TabletPCMath Package
UserExperience Desktop Package
UserExperience Desktop Package
WordPad FoD Package
WordPad FoD Package
WordPad FoD Package
WordPad FoD Package
WordPad FoD Package

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MALICIOUS
- REMCOS has been detected (YARA)
  - aspnet_compiler.exe (PID: 2932)
- REMCOS mutex has been found
  - aspnet_compiler.exe (PID: 2932)
- REMCOS has been detected
  - aspnet_compiler.exe (PID: 2932)
SUSPICIOUS
- There is functionality for taking screenshot (YARA)
  - aspnet_compiler.exe (PID: 2932)
- Connects to unusual port
  - aspnet_compiler.exe (PID: 2932)
INFO
- Reads the computer name
  - aspnet_compiler.exe (PID: 2932)
  - decoded_output.exe (PID: 884)
- Checks supported languages
  - decoded_output.exe (PID: 884)
  - aspnet_compiler.exe (PID: 2932)
- Reads the machine GUID from the registry
  - decoded_output.exe (PID: 884)

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

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Remcos

(PID) Process(2932) aspnet_compiler.exe

Options

Keylog_dirremcos

Copy_dirRemcos

Connect_delay0

Audio_dirMicRecords

Audio_path%ProgramFiles%

Audio_record_time5

Delete_fileFalse

Mouse_optionFalse

Screenshot_cryptFalse

Screenshot_fileScreenshots

Screenshot_path%APPDATA%

Take_ScreenshotFalse

Screenshot_time5

Screenshot_flagFalse

Hide_keylogFalse

Keylog_cryptFalse

Keylog_filelogs.dat

Keylog_path%LOCALAPPDATA%

Keylog_flag0

Mutex_nameRmc-26HAHO

Hide_fileFalse

Startup_valueFalse

Copy_fileremcos.exe

Setup_path%LOCALAPPDATA%

Install_HKLM\Winlogon\Shell100000

Install_HKLM\Explorer\Run1

Install_HKLM\RunTrue

Install_HKCU\RunTrue

Install_flagFalse

Connect_interval1

BotnetRemoteHost

C2 (2)192.3.101.29:14645

192.3.101.29:1070

No Malware configuration.

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TRiD

.exe	\|	Generic Win/DOS Executable (50)
.exe	\|	DOS Executable Generic (49.9)

EXIF

EXE

MachineType:	AMD AMD64
TimeStamp:	2024:09:17 00:17:39+00:00
ImageFileCharacteristics:	Executable, No line numbers, No symbols, Large address aware
PEType:	PE32+
LinkerVersion:	48
CodeSize:	498176
InitializedDataSize:	522240
UninitializedDataSize:	-
EntryPoint:	0x0000
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	1.0.0.0
ProductVersionNumber:	1.0.0.0
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	Neutral
CharacterSet:	Unicode
Comments:	-
CompanyName:	-
FileDescription:	TYIWEGDSGJK7734
FileVersion:	1.0.0.0
InternalName:	TYIWEGDSGJK7734.exe
LegalCopyright:	Copyright © 2024
LegalTrademarks:	-
OriginalFileName:	TYIWEGDSGJK7734.exe
ProductName:	TYIWEGDSGJK7734
ProductVersion:	1.0.0.0
AssemblyVersion:	1.0.0.0

No data.

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All screenshots are available in the full report

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Total processes

134

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

884

"C:\Users\admin\AppData\Local\Temp\decoded_output.exe"

C:\Users\admin\AppData\Local\Temp\decoded_output.exe

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Description:

TYIWEGDSGJK7734

Exit code:

Version:

1.0.0.0

Modules

Images
c:\users\admin\appdata\local\temp\decoded_output.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll

2932

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

decoded_output.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

aspnet_compiler.exe

Version:

4.8.9037.0 built by: NET481REL1

Modules

Images
c:\windows\microsoft.net\framework\v4.0.30319\aspnet_compiler.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\user32.dll

Remcos

(PID) Process(2932) aspnet_compiler.exe

Options

Keylog_dirremcos

Copy_dirRemcos

Connect_delay0

Audio_dirMicRecords

Audio_path%ProgramFiles%

Audio_record_time5

Delete_fileFalse

Mouse_optionFalse

Screenshot_cryptFalse

Screenshot_fileScreenshots

Screenshot_path%APPDATA%

Take_ScreenshotFalse

Screenshot_time5

Screenshot_flagFalse

Hide_keylogFalse

Keylog_cryptFalse

Keylog_filelogs.dat

Keylog_path%LOCALAPPDATA%

Keylog_flag0

Mutex_nameRmc-26HAHO

Hide_fileFalse

Startup_valueFalse

Copy_fileremcos.exe

Setup_path%LOCALAPPDATA%

Install_HKLM\Winlogon\Shell100000

Install_HKLM\Explorer\Run1

Install_HKLM\RunTrue

Install_HKCU\RunTrue

Install_flagFalse

Connect_interval1

BotnetRemoteHost

C2 (2)192.3.101.29:14645

192.3.101.29:1070

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Total events

428

Read events

425

Write events

Delete events

Modification events


(PID) Process:	(2932) aspnet_compiler.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Rmc-26HAHO
Operation:	write	Name:	exepath
Value: 59AFBDA11504DA25D7695DE51C5D7C1365986E8C943644D9ED3A578611332CDDB07F678DB0F8C26F61A75B12344E479FB6CC11D65CA609B32F66BE8D108CA34FDDDF1084D6FA26C9BD92F3D3E789D71F26D9FA19A4A87C3EDD5DC5C55AEE59B4301D7B43C394D9627D6AC6EA22860172DAAFE693D6868F34BB7B965DAD6A45C25DF1284C
(PID) Process:	(2932) aspnet_compiler.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Rmc-26HAHO
Operation:	write	Name:	licence
Value: 3D5F1171B9379FD0EE35982303638CE2
(PID) Process:	(2932) aspnet_compiler.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Rmc-26HAHO
Operation:	write	Name:	time
Value:

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

No data

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
2120	MoUsoCoreWorker.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	unknown
3992	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	unknown
2648	backgroundTaskHost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	unknown	—	—	unknown
3992	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	unknown
4516	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	unknown

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
6796	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
2120	MoUsoCoreWorker.exe	95.101.149.131:80	www.microsoft.com	Akamai International B.V.	NL	unknown
3888	svchost.exe	239.255.255.250:1900	—	—	—	whitelisted
3260	svchost.exe	40.115.3.253:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4516	svchost.exe	20.190.159.73:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4516	svchost.exe	192.229.221.95:80	ocsp.digicert.com	EDGECAST	US	whitelisted
2932	aspnet_compiler.exe	192.3.101.29:14645	—	AS-COLOCROSSING	US	malicious
4	System	192.168.100.255:138	—	—	—	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.124.78.146 4.231.128.59 20.73.194.208	whitelisted
www.microsoft.com	95.101.149.131	whitelisted
google.com	142.250.185.206	whitelisted
client.wns.windows.com	40.115.3.253	whitelisted
login.live.com	20.190.159.73 40.126.31.73 20.190.159.71 20.190.159.4 20.190.159.2 40.126.31.69 20.190.159.64 20.190.159.0	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
go.microsoft.com	184.28.89.167	whitelisted
arc.msn.com	20.223.35.26 20.103.156.88	whitelisted
fd.api.iris.microsoft.com	20.199.58.43 20.223.36.55	whitelisted
slscr.update.microsoft.com	4.175.87.197	whitelisted

Threats

No threats detected

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No debug info

General Info

decoded_output.exe

A0912626829EC19AEE158D7CEC1BD06F

F046BCD08DC142885A59FD9A25FD7468EF028CDF

E373701E9C2EC2C18ED363C6C699C1487646CF2DD696F5504F7CE24593B69205

24576:DCS935RN75NTxXyVleciNKEgMJO72mW4S2B/lVn2UXMSWteMy:DNN5RN75NTxXyVlecwKEgMJO7254DB/l

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

REMCOS has been detected (YARA)

REMCOS mutex has been found

REMCOS has been detected

SUSPICIOUS

There is functionality for taking screenshot (YARA)

Connects to unusual port

INFO

Reads the computer name

Checks supported languages

Reads the machine GUID from the registry

Malware configuration

Remcos

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Malware configuration

Remcos

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings