Malware analysis ExpressGen.rar Malicious activity | ANY.RUN

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download:	ExpressGen.rar
Full analysis:	https://app.any.run/tasks/eb283bcd-4055-486d-bd7f-878b84e1ae4d
Verdict:	Malicious activity
Threats:	Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely. 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:	January 10, 2019, 19:50:18
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	evasion trojan rat quasar
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	49D834E1F9F733C9F3F7256216BA2B1F
SHA1:	E453E7750A283DF64D1D9EDB73FDABAD3BF77B6F
SHA256:	3CB2802B37C8060A433FAFF56BC1E92EB19DF44E514F94679A430FDBEB6844C6
SSDEEP:	12288:9e5XWBtzrbtQhLmjGbDIOGj8qrf5rp/irs09ijfPe5XWBtzrD:9KWnIsCIoqr2sHjHKWnD

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:: 240 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 180 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: off
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
- Application was dropped or rewritten from another process
  - WindowsDefender.exe (PID: 3800)
  - ExpressGen.exe (PID: 2840)
- Changes the autorun value in the registry
  - Regasm.exe (PID: 3824)
- QUASAR was detected
  - Regasm.exe (PID: 3824)
- Actions looks like stealing of personal data
  - Regasm.exe (PID: 3824)
SUSPICIOUS
- Starts itself from another location
  - ExpressGen.exe (PID: 2840)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 3012)
  - ExpressGen.exe (PID: 2840)
- Checks for external IP
  - Regasm.exe (PID: 3824)
- Connects to unusual port
  - Regasm.exe (PID: 3824)
- Creates files in the user directory
  - Regasm.exe (PID: 3824)
- Reads Internet Cache Settings
  - Regasm.exe (PID: 3824)
- Loads DLL from Mozilla Firefox
  - Regasm.exe (PID: 3824)
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

2840

"C:\Users\admin\AppData\Local\Temp\Rar$EXa3012.34282\ExpressGen.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa3012.34282\ExpressGen.exe

WinRAR.exe

User:

admin

Company:

Update

Integrity Level:

MEDIUM

Description:

Update.exe

Exit code:

Version:

1.1.1.0

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa3012.34282\expressgen.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

3012

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

3112

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

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

—

WindowsDefender.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft .NET Assembly Registration Utility

Exit code:

Version:

4.6.1055.0 built by: NETFXREL2

Modules

Images
c:\windows\microsoft.net\framework\v4.0.30319\regasm.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.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

3800

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

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

—

ExpressGen.exe

User:

admin

Company:

Update

Integrity Level:

MEDIUM

Description:

Update.exe

Exit code:

Version:

1.1.1.0

Modules

Images
c:\users\admin\appdata\local\temp\windowsdefender.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\rpcrt4.dll
c:\windows\system32\sechost.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll

3824

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

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

ExpressGen.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft .NET Assembly Registration Utility

Exit code:

Version:

4.6.1055.0 built by: NETFXREL2

Modules

Images
c:\windows\microsoft.net\framework\v4.0.30319\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

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Total events

913

Read events

882

Write events

Delete events

Modification events


(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\ExpressGen.rar
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(3012) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(3012) 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
3012	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3012.34282\ExpressGen.exe		executable
		MD5:—	SHA256:—
2840	ExpressGen.exe	C:\Users\admin\AppData\Local\Temp\WindowsDefender.exe		executable
		MD5:—	SHA256:—
3824	Regasm.exe	C:\Users\admin\AppData\Roaming\Logs\01-10-2019		binary
		MD5:—	SHA256:—
3824	Regasm.exe	C:\Users\admin\AppData\Local\Temp\68xoPlXDUDRe.bat		text
		MD5:—	SHA256:—
3012	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3012.34282\DeathByCaptcha.dll		executable
		MD5:612080028164B12939751DCCCBB68D4A	SHA256:E96030FDDAF7E78401567EE82480AD75EE48D3556199A3F85C0EC669EDAC2EF4
3012	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3012.34282\MetroFramework.dll		executable
		MD5:44538B311E9EC2BCF0A6452702628D99	SHA256:BAF326F52D39155D722465947F4CC67E6E90CFD0F89954EAB959568E9BC342AA
3012	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$EXa3012.34282\xNet.dll		executable
		MD5:612080028164B12939751DCCCBB68D4A	SHA256:E96030FDDAF7E78401567EE82480AD75EE48D3556199A3F85C0EC669EDAC2EF4

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
3824	Regasm.exe	GET	200	185.194.141.58:80	http://ip-api.com/json/	DE	text	253 b	malicious

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
3824	Regasm.exe	193.56.28.121:5431	—	—	—	malicious
3824	Regasm.exe	185.194.141.58:80	ip-api.com	netcup GmbH	DE	unknown

DNS requests

Domain	IP	Reputation
ip-api.com	185.194.141.58	malicious

Threats

PID	Process	Class	Message
3824	Regasm.exe	Potential Corporate Privacy Violation	ET POLICY External IP Lookup ip-api.com
3824	Regasm.exe	A Network Trojan was detected	MALWARE [PTsecurity] Quasar 1.3 RAT IP Lookup ip-api.com (HTTP headeer)
3824	Regasm.exe	A Network Trojan was detected	MALWARE [PTsecurity] Quasar RAT

1 ETPRO signatures available at the full report

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No debug info

General Info

ExpressGen.rar

49D834E1F9F733C9F3F7256216BA2B1F

E453E7750A283DF64D1D9EDB73FDABAD3BF77B6F

3CB2802B37C8060A433FAFF56BC1E92EB19DF44E514F94679A430FDBEB6844C6

12288:9e5XWBtzrbtQhLmjGbDIOGj8qrf5rp/irs09ijfPe5XWBtzrD:9KWnIsCIoqr2sHjHKWnD

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

Changes the autorun value in the registry

QUASAR was detected

Actions looks like stealing of personal data

SUSPICIOUS

Starts itself from another location

Executable content was dropped or overwritten

Checks for external IP

Connects to unusual port

Creates files in the user directory

Reads Internet Cache Settings

Loads DLL from Mozilla Firefox

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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings