Malware analysis #515695.rar Malicious activity | ANY.RUN

Add for printing

File name:	#515695.rar
Full analysis:	https://app.any.run/tasks/b6cc23ae-cc3c-4d48-ae7c-f04108d126d9
Verdict:	Malicious activity
Threats:	NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website. 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:	July 17, 2019, 07:49:37
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	trojan nanocore rat
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	D178F9D70B870EA240ABA0C2357EDF64
SHA1:	B03FD1E600CA36A32A8136984C0BADD24D0C1029
SHA256:	6961A96DDD8C2D54C65257A68A226E80EFEC8E283CA1A75A75F72A01A0B2BF7D
SSDEEP:	12288:q/VG97ZWkwEloubApVd9TPCWhMuTwK5MRHfOuhVsR8UQcxl:TTzRApxCGXWxGEVE8UdL

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 (75.0.3770.100)
Google Update Helper (1.3.34.7)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.7.2 (4.7.03062)
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++ 2015-2019 Redistributable (x86) - 14.21.27702 (14.21.27702.2)
Microsoft Visual C++ 2019 X86 Additional Runtime - 14.21.27702 (14.21.27702)
Microsoft Visual C++ 2019 X86 Minimum Runtime - 14.21.27702 (14.21.27702)
Mozilla Firefox 67.0.4 (x86 en-US) (67.0.4)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
Update for Microsoft .NET Framework 4.7.2 (KB4087364) (1)
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
KB4019990
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

Add for printing

MALICIOUS
- Application was dropped or rewritten from another process
  - menu.exe (PID: 3396)
  - menu.exe (PID: 2760)
- NanoCore was detected
  - menu.exe (PID: 2760)
- Connects to CnC server
  - menu.exe (PID: 2760)
- Changes the autorun value in the registry
  - menu.exe (PID: 2760)
SUSPICIOUS
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 3020)
  - menu.exe (PID: 3396)
  - menu.exe (PID: 2760)
- Writes to a desktop.ini file (may be used to cloak folders)
  - WinRAR.exe (PID: 3020)
- Creates files in the user directory
  - menu.exe (PID: 2760)
  - menu.exe (PID: 3396)
INFO
No info indicators.

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

Add for printing

No Malware configuration.

Add for printing

TRiD

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

No data.

Add for printing

All screenshots are available in the full report

Add for printing

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

2760

"C:\Users\admin\AppData\Roaming\menu.exe"

C:\Users\admin\AppData\Roaming\menu.exe

menu.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\roaming\menu.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

3004

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\admin\AppData\Roaming\Secret.txt

C:\Windows\system32\NOTEPAD.EXE

—

menu.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Notepad

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\notepad.exe
c:\systemroot\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\gdi32.dll
c:\windows\system32\user32.dll

3020

"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\#515695.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\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll

3396

"C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\#515695\menu.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\#515695\menu.exe

WinRAR.exe

User:

admin

Company:

fierce

Integrity Level:

MEDIUM

Description:

departmentkey

Exit code:

Version:

15.5.24.34

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa3020.31558\#515695\menu.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll

Add for printing

Total events

828

Read events

810

Write events

Delete events

Modification events


(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\70\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\#515695.rar
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(3020) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1

Add for printing

Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3020	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\#515695\menu.exe		executable
		MD5:—	SHA256:—
2760	menu.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		binary
		MD5:—	SHA256:—
2760	menu.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe		executable
		MD5:—	SHA256:—
3396	menu.exe	C:\Users\admin\AppData\Roaming\Secret.txt		text
		MD5:—	SHA256:—
3020	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\README.txt		text
		MD5:—	SHA256:—
3020	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\#515695\background.png		image
		MD5:—	SHA256:—
3396	menu.exe	C:\Users\admin\AppData\Roaming\menu.exe		executable
		MD5:—	SHA256:—
3020	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\#515695\CED3D10Hook.dll		executable
		MD5:51E158C47F1CB4D07DA1DB3163F7C2FC	SHA256:1E42CF7639C700D0D85249133174BA3D43443A16D3CA206D596973070274DB97
3020	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\#515695\main.lua		text
		MD5:3057858CA97B23E5E69BB8C473BCDE67	SHA256:57099ECE90DD345172471BA8CBB7961BD0EE1ADC283CD81E9B5D8267FA34B8B6
3020	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3020.31558\#515695\desktop.ini		ini
		MD5:58BD1B3C4CB72B3A24B683CF211A8002	SHA256:BF5D03AA427A87E6D4FFF4C8980AD5D5E59AB91DC51D87A25DD91DF7DE33BEAA

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

Add for printing

HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
2760	menu.exe	8.8.8.8:53	—	Google Inc.	US	malicious
2760	menu.exe	3.17.202.129:10754	0.tcp.ngrok.io	—	US	malicious

DNS requests

Domain	IP	Reputation
0.tcp.ngrok.io	3.17.202.129	malicious

Threats

PID	Process	Class	Message
2760	menu.exe	Potential Corporate Privacy Violation	ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
2760	menu.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2760	menu.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2760	menu.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2760	menu.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2760	menu.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2760	menu.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2760	menu.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2760	menu.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B

5 ETPRO signatures available at the full report

Add for printing

No debug info

General Info

#515695.rar

D178F9D70B870EA240ABA0C2357EDF64

B03FD1E600CA36A32A8136984C0BADD24D0C1029

6961A96DDD8C2D54C65257A68A226E80EFEC8E283CA1A75A75F72A01A0B2BF7D

12288:q/VG97ZWkwEloubApVd9TPCWhMuTwK5MRHfOuhVsR8UQcxl:TTzRApxCGXWxGEVE8UdL

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

NanoCore was detected

Connects to CnC server

Changes the autorun value in the registry

SUSPICIOUS

Executable content was dropped or overwritten

Writes to a desktop.ini file (may be used to cloak folders)

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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings