Malware analysis kittens.ps1 Malicious activity | ANY.RUN

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File name:	kittens.ps1
Full analysis:	https://app.any.run/tasks/09282f4b-d188-44c9-8e04-a9f90e62aacb
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:	August 13, 2019, 20:14:00
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	trojan nanocore rat
Indicators:
MIME:	text/plain
File info:	ASCII text, with very long lines
MD5:	35BB05648980F3F1985DF90D503F20A6
SHA1:	207A530C3D8B2D98E863BCF0451FE7EE01525987
SHA256:	8346405BBA6B2A758420A0BEC4A700FAA37AEE2565F368633002A81EB17D517C
SSDEEP:	24576:5ikwFvFYM/ec7VHHKXSo7weddTowzcERlDXMGqPovOHFvxcY8m3:g9ZKM6weDF0GqLHhv

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:: on
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 68.0.1 (x86 en-US) (68.0.1)
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

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MALICIOUS
- Changes the autorun value in the registry
  - jisv.exe (PID: 2904)
  - RegAsm.exe (PID: 2256)
- Application was dropped or rewritten from another process
  - jisv.exe (PID: 2904)
  - RegAsm.exe (PID: 2256)
- NanoCore was detected
  - RegAsm.exe (PID: 2256)
- Connects to CnC server
  - RegAsm.exe (PID: 2256)
SUSPICIOUS
- Executable content was dropped or overwritten
  - jisv.exe (PID: 2904)
  - powershell.exe (PID: 3876)
  - RegAsm.exe (PID: 2256)
- PowerShell script executed
  - powershell.exe (PID: 3876)
- Creates files in the user directory
  - powershell.exe (PID: 3876)
  - RegAsm.exe (PID: 2256)
- Suspicious files were dropped or overwritten
  - jisv.exe (PID: 2904)
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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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

2256

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

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

jisv.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

2904

"C:\Users\Public\jisv.exe"

C:\Users\Public\jisv.exe

powershell.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\public\jisv.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

3876

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "-file" "C:\Users\admin\Downloads\kittens.ps1"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows PowerShell

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\windowspowershell\v1.0\powershell.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\atl.dll
c:\windows\system32\user32.dll

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Total events

255

Read events

194

Write events

Delete events

Modification events


(PID) Process:	(3876) powershell.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\72\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(3876) powershell.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(3876) powershell.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1
(PID) Process:	(2904) jisv.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	EcqdWJQTvB
Value: C:\Users\Public\EcqdWJQTvB.vbs
(PID) Process:	(2256) RegAsm.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	TCP Monitor
Value: C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3876	powershell.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\S1J2VDJQ2A28YHOY4FJQ.temp		—
		MD5:—	SHA256:—
3876	powershell.exe	C:\Users\Public\jisv.exe		executable
		MD5:—	SHA256:—
3876	powershell.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms		binary
		MD5:—	SHA256:—
3876	powershell.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms~RF36e8f2.TMP		binary
		MD5:—	SHA256:—
2904	jisv.exe	C:\Users\Public\EcqdWJQTvB.vbs		text
		MD5:—	SHA256:—
2256	RegAsm.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		text
		MD5:—	SHA256:—
2904	jisv.exe	C:\Users\admin\appraiser\nslookup.bat		executable
		MD5:—	SHA256:—
2256	RegAsm.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe		executable
		MD5:278EDBD499374BF73621F8C1F969D894	SHA256:C6999B9F79932C3B4F1C461A69D9DC8DC301D6A155ABC33EFE1B6E9E4A038391

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

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
2256	RegAsm.exe	79.134.225.96:5556	—	Andreas Fink trading as Fink Telecom Services	CH	malicious

DNS requests

No data

Threats

PID	Process	Class	Message
2256	RegAsm.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2256	RegAsm.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2256	RegAsm.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2256	RegAsm.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2256	RegAsm.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2256	RegAsm.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2256	RegAsm.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2256	RegAsm.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2256	RegAsm.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2256	RegAsm.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT

4 ETPRO signatures available at the full report

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No debug info

General Info

kittens.ps1

35BB05648980F3F1985DF90D503F20A6

207A530C3D8B2D98E863BCF0451FE7EE01525987

8346405BBA6B2A758420A0BEC4A700FAA37AEE2565F368633002A81EB17D517C

24576:5ikwFvFYM/ec7VHHKXSo7weddTowzcERlDXMGqPovOHFvxcY8m3:g9ZKM6weDF0GqLHhv

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Changes the autorun value in the registry

Application was dropped or rewritten from another process

NanoCore was detected

Connects to CnC server

SUSPICIOUS

Executable content was dropped or overwritten

PowerShell script executed

Creates files in the user directory

Suspicious files were dropped or overwritten

INFO

Malware configuration

Static information

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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