Malware analysis 6VKzMDa.rar Malicious activity | ANY.RUN

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File name:	6VKzMDa.rar
Full analysis:	https://app.any.run/tasks/d90bb5dc-8ab7-44c8-8d33-8414f7edcf52
Verdict:	Malicious activity
Threats:	Orcus is a modular Remote Access Trojan with some unusual functions. This RAT enables attackers to create plugins using a custom development library and offers a robust core feature set that makes it one of the most dangerous malicious programs in its class. 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:	December 14, 2018, 21:43:03
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	rat orcus trojan
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	076728C8745E78F4CEEF2E9A389BD46A
SHA1:	1285FFB3D25E6600CBC11F097B06464090E6D421
SHA256:	DD20C9220B1A26B0C98CAC348FBE3D0220A33981F3C8AC42F6AB0C05770D3577
SSDEEP:	49152:nMmKXqcvSTF8TB+pY9IMtXNR5GVjqHe0/7YEupEf15/XzGZWP:nPzc6R8TuYXNR5GNqHH/9bjGgP

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 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 (68.0.3440.106)
Google Update Helper (1.3.33.17)
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 61.0.2 (x86 en-US) (61.0.2)
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
- Uses Task Scheduler to run other applications
  - blackr41n.exe (PID: 2376)
- Loads the Task Scheduler COM API
  - schtasks.exe (PID: 3668)
  - mmc.exe (PID: 3068)
- Application was dropped or rewritten from another process
  - blackr41n.exe (PID: 2376)
  - SoundService.exe (PID: 3156)
  - SoundService.exe (PID: 3928)
  - SoundService.exe (PID: 4000)
  - SoundService.exe (PID: 960)
  - SoundService.exe (PID: 3280)
  - SoundService.exe (PID: 3708)
- Orcus was detected
  - Regasm.exe (PID: 2840)
  - Regasm.exe (PID: 3020)
  - Regasm.exe (PID: 3212)
  - Regasm.exe (PID: 1376)
  - Regasm.exe (PID: 4076)
  - Regasm.exe (PID: 1084)
SUSPICIOUS
- Executable content was dropped or overwritten
  - blackr41n.exe (PID: 2376)
- Creates files in the user directory
  - blackr41n.exe (PID: 2376)
- Starts itself from another location
  - blackr41n.exe (PID: 2376)
- Connects to unusual port
  - Regasm.exe (PID: 2840)
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
2872	"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\6VKzMDa.rar"	C:\Program Files\WinRAR\WinRAR.exe	—	explorer.exe
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.60.0
2376	"C:\Users\admin\Desktop\blackr41n\blackr41n.exe"	C:\Users\admin\Desktop\blackr41n\blackr41n.exe		explorer.exe
User: admin Integrity Level: HIGH Description: Exit code: 0 Version: 0.0.0.0
3668	schtasks /create /f /sc minute /mo 1 /tn "'blackr41n'" /tr "'C:\Users\admin\AppData\Roaming\SoundService.exe'"	C:\Windows\system32\schtasks.exe	—	blackr41n.exe
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255)
3156	"C:\Users\admin\AppData\Roaming\SoundService.exe"	C:\Users\admin\AppData\Roaming\SoundService.exe	—	blackr41n.exe
User: admin Integrity Level: HIGH Description: Exit code: 0 Version: 0.0.0.0
2840	"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe"	C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe		SoundService.exe
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft .NET Assembly Registration Utility Version: 4.6.1055.0 built by: NETFXREL2
3928	C:\Users\admin\AppData\Roaming\SoundService.exe	C:\Users\admin\AppData\Roaming\SoundService.exe	—	taskeng.exe
User: admin Integrity Level: MEDIUM Description: Exit code: 0 Version: 0.0.0.0
3020	"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe"	C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe		SoundService.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2
3788	"C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s	C:\Windows\system32\mmc.exe	—	explorer.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Management Console Exit code: 3221226540 Version: 6.1.7600.16385 (win7_rtm.090713-1255)
3068	"C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s	C:\Windows\system32\mmc.exe		explorer.exe
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft Management Console Version: 6.1.7600.16385 (win7_rtm.090713-1255)
960	C:\Users\admin\AppData\Roaming\SoundService.exe	C:\Users\admin\AppData\Roaming\SoundService.exe	—	taskeng.exe
User: admin Integrity Level: MEDIUM Description: Exit code: 0 Version: 0.0.0.0

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Total events

951

Read events

920

Write events

Delete events

Modification events


(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\6VKzMDa.rar
(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(2872) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(2376) blackr41n.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(2376) blackr41n.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
2872	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$DRa2872.31434\blackr41n\blackr41n.exe		—
		MD5:—	SHA256:—
2872	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$DRa2872.31434\blackr41n\blackr41n.vmprotect.dll		—
		MD5:—	SHA256:—
2840	Regasm.exe	C:\Users\admin\AppData\Local\Temp\Cab2571.tmp		—
		MD5:—	SHA256:—
2840	Regasm.exe	C:\Users\admin\AppData\Local\Temp\Tar2572.tmp		—
		MD5:—	SHA256:—
2840	Regasm.exe	C:\Users\admin\AppData\Local\Temp\Cab2582.tmp		—
		MD5:—	SHA256:—
2840	Regasm.exe	C:\Users\admin\AppData\Local\Temp\Tar2583.tmp		—
		MD5:—	SHA256:—
2840	Regasm.exe	C:\Users\admin\AppData\Local\Temp\Cab2640.tmp		—
		MD5:—	SHA256:—
2840	Regasm.exe	C:\Users\admin\AppData\Local\Temp\Tar2641.tmp		—
		MD5:—	SHA256:—
2840	Regasm.exe	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015		binary
		MD5:B97BE640B67AD1E08FFE36257DAC364F	SHA256:472358607D53D5A1963584216E568BC962CEE6B176B64A5530C145943748ED21
2376	blackr41n.exe	C:\Users\admin\AppData\Roaming\SoundService.exe		executable
		MD5:001D3097B6A586302C8CB79F11661316	SHA256:533F2267EF7B0ABE53EBE40FC0103BF093468672BCF0A7453A05E71CCD7751F7

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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
2840	Regasm.exe	GET	200	2.16.186.81:80	http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab	unknown	compressed	55.2 Kb	whitelisted

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
2840	Regasm.exe	103.1.184.108:54984	—	TPG Telecom Limited	AU	malicious
2840	Regasm.exe	2.16.186.81:80	www.download.windowsupdate.com	Akamai International B.V.	—	whitelisted

DNS requests

Domain	IP	Reputation
dns.msftncsi.com	131.107.255.255	shared
www.download.windowsupdate.com	2.16.186.81 2.16.186.56	whitelisted

Threats

PID	Process	Class	Message
2840	Regasm.exe	A Network Trojan was detected	MALWARE [PTsecurity] Observed Malicious SSL Certificate (Orcus RAT)
2840	Regasm.exe	A Network Trojan was detected	MALWARE [PTsecurity] Observed Malicious SSL Certificate (Orcus RAT)
2840	Regasm.exe	A Network Trojan was detected	MALWARE [PTsecurity] Malicious SSL connection (Orcus RAT) pkt checker #1
2840	Regasm.exe	Generic Protocol Command Decode	SURICATA TLS invalid record/traffic
2840	Regasm.exe	Generic Protocol Command Decode	SURICATA TLS invalid record/traffic

1 ETPRO signatures available at the full report

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Process	Message
mmc.exe	Constructor: Microsoft.TaskScheduler.SnapIn.TaskSchedulerSnapIn
mmc.exe	AddIcons: Microsoft.TaskScheduler.SnapIn.TaskSchedulerSnapIn
mmc.exe	AddIcons: Microsoft.TaskScheduler.SnapIn.TaskSchedulerSnapIn
mmc.exe	ProcessCommandLineArguments: Microsoft.TaskScheduler.SnapIn.TaskSchedulerSnapIn

General Info

6VKzMDa.rar

076728C8745E78F4CEEF2E9A389BD46A

1285FFB3D25E6600CBC11F097B06464090E6D421

DD20C9220B1A26B0C98CAC348FBE3D0220A33981F3C8AC42F6AB0C05770D3577

49152:nMmKXqcvSTF8TB+pY9IMtXNR5GVjqHe0/7YEupEf15/XzGZWP:nPzc6R8TuYXNR5GNqHH/9bjGgP

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Uses Task Scheduler to run other applications

Loads the Task Scheduler COM API

Application was dropped or rewritten from another process

Orcus was detected

SUSPICIOUS

Executable content was dropped or overwritten

Creates files in the user directory

Starts itself from another location

Connects to unusual port

INFO

Malware configuration

Static information

TRiD

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Information

Information

Information

Information

Information

Information

Information

Information

Information

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings