Malware analysis uc Malicious activity | ANY.RUN

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download:	uc
Full analysis:	https://app.any.run/tasks/34700288-f91b-4263-bf6d-2dbc9dfd33be
Verdict:	Malicious activity
Threats:	njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world. njRAT ist ein Trojaner für den Fernzugriff. Es handelt sich um einen der am weitesten verbreiteten RATs auf dem Markt, der eine Fülle von Bildungsinformationen bietet. Interessierte Angreifer können sogar Tutorials auf YouTube finden. Dies macht ihn zu einem der beliebtesten RATs der Welt. 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. Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email. Malware Trends Tracker >>>
Analysis date:	April 25, 2019, 16:45:56
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	trojan rat njrat bladabindi
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	A8B299F6B66A6AA709E2436102C983C2
SHA1:	AA8B31F94A5BE2D7B2D16CA824536F47B0D1F8A6
SHA256:	FF29E59CD73A117799D34D84C74A6E2942C0C054E1533E30627E28143B7AC6B4
SSDEEP:	12288:e1TSwYQQpFA21H+e8/yM2okVGHORYdq9CYF2M2odjQ98pUbA0SvphWtrJnL:eBSoQXJWNkEHS9CYF2hyF02hqrVL

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:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (73.0.3683.75)
Google Update Helper (1.3.33.23)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.6.1 (4.6.01055)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.15.26706 (14.15.26706.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.15.26706 (14.15.26706)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.15.26706 (14.15.26706)
Mozilla Firefox 65.0.2 (x86 en-US) (65.0.2)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Application was dropped or rewritten from another process
  - HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe (PID: 2752)
- Loads the Task Scheduler COM API
  - schtasks.exe (PID: 3612)
  - schtasks.exe (PID: 2760)
- Connects to CnC server
  - RegAsm.exe (PID: 3528)
- NJRAT was detected
  - RegAsm.exe (PID: 3528)
- Writes to a start menu file
  - HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe (PID: 2752)
- Uses Task Scheduler to run other applications
  - RegAsm.exe (PID: 3528)
SUSPICIOUS
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 2832)
  - HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe (PID: 2752)
- Creates files in the user directory
  - HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe (PID: 2752)
INFO
No info indicators.

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

.rar	\|	RAR compressed archive (v5.0) (61.5)
.rar	\|	RAR compressed archive (gen) (38.4)

No data.

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All screenshots are available in the full report

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Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2556

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

—

taskeng.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft .NET Assembly Registration Utility

Exit code:

Version:

2.0.50727.5420 (Win7SP1.050727-5400)

Modules

Images
c:\windows\microsoft.net\framework\v2.0.50727\regasm.exe
c:\systemroot\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\apppatch\acgenral.dll
c:\windows\system32\sechost.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll

2752

"C:\Users\admin\AppData\Local\Temp\Rar$EXa2832.28819\HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa2832.28819\HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe

WinRAR.exe

User:

admin

Company:

Netplwiz

Integrity Level:

MEDIUM

Description:

RdpSaUacHelper

Exit code:

Version:

720.941.63.129

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa2832.28819\hytwuocapturemep100902019000011 hytwuocapturemep10090201900022.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\system32\version.dll

2760

schtasks /Delete /tn NYAN /F

C:\Windows\system32\schtasks.exe

—

RegAsm.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Manages scheduled tasks

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\schtasks.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\ole32.dll

2832

"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\uc.rar"

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Exit code:

Version:

5.60.0

Modules

Images
c:\program files\winrar\winrar.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll

3528

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft .NET Assembly Registration Utility

Exit code:

Version:

2.0.50727.5420 (Win7SP1.050727-5400)

Modules

Images
c:\windows\microsoft.net\framework\v2.0.50727\regasm.exe
c:\systemroot\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\apppatch\acgenral.dll
c:\windows\system32\sechost.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll

3612

schtasks /create /tn NYAN /tr "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" /sc minute /mo 1

C:\Windows\system32\schtasks.exe

—

RegAsm.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Manages scheduled tasks

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\schtasks.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\ole32.dll
c:\windows\system32\usp10.dll

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Total events

480

Read events

463

Write events

Delete events

Modification events


(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\uc.rar
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(2832) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2752	HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe	C:\Users\admin\difx64\archiveint.vbs		text
		MD5:—	SHA256:—
2832	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa2832.28819\HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe		executable
		MD5:—	SHA256:—
2752	HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\archiveint.url		text
		MD5:—	SHA256:—
2752	HYTWUOCaptureMEP100902019000011 HYTWUOCaptureMEP10090201900022.exe	C:\Users\admin\difx64\cdd.exe		executable
		MD5:—	SHA256:—

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
3528	RegAsm.exe	181.59.9.81:1992	mayolomejor.duckdns.org	Telmex Colombia S.A.	CO	malicious

DNS requests

Domain	IP	Reputation
mayolomejor.duckdns.org	181.59.9.81	malicious

Threats

PID	Process	Class	Message
1048	svchost.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
3528	RegAsm.exe	A Network Trojan was detected	MALWARE [PTsecurity] njRAT.Gen RAT outbound connection

1 ETPRO signatures available at the full report

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No debug info

General Info

uc

A8B299F6B66A6AA709E2436102C983C2

AA8B31F94A5BE2D7B2D16CA824536F47B0D1F8A6

FF29E59CD73A117799D34D84C74A6E2942C0C054E1533E30627E28143B7AC6B4

12288:e1TSwYQQpFA21H+e8/yM2okVGHORYdq9CYF2M2odjQ98pUbA0SvphWtrJnL:eBSoQXJWNkEHS9CYF2hyF02hqrVL

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

Loads the Task Scheduler COM API

Connects to CnC server

NJRAT was detected

Writes to a start menu file

Uses Task Scheduler to run other applications

SUSPICIOUS

Executable content was dropped or overwritten

Creates files in the user directory

INFO

Malware configuration

Static information

TRiD

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

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