Malware analysis 43fc843b3960612e474ad0e9fd6270e4a298bd8820e1470763d0c8c54728cb1d.rar Malicious activity

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File name:	43fc843b3960612e474ad0e9fd6270e4a298bd8820e1470763d0c8c54728cb1d.rar
Full analysis:	https://app.any.run/tasks/e14c9291-a549-4c23-876f-c864f4060a1c
Verdict:	Malicious activity
Threats:	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. Remcos is a commercially distributed remote administration and surveillance tool that has been widely observed in unauthorized deployments, where threat actors use it to perform remote actions on compromised machines. It is actively maintained by its vendor, with new versions and feature updates released on a frequent, near-monthly basis. Remcos ist eine Malware vom Typ RAT, mit der Angreifer aus der Ferne Aktionen auf infizierten Computern durchführen können. Diese Malware ist extrem aktiv und wird fast jeden Monat mit Updates auf den neuesten Stand gebracht. Malware Trends Tracker >>>
Analysis date:	March 21, 2019, 13:44:17
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	autoit rat remcos
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	8C4A748B0179DB4D2FCE7393745ABC53
SHA1:	806EFFFC4155285A1E418F59C171006F43C2D30F
SHA256:	43FC843B3960612E474AD0E9FD6270E4A298BD8820E1470763D0C8C54728CB1D
SSDEEP:	12288:dAbfuNhQ2+5B92dQBWd4JlvQbCEIwmSUktLe3ptHQJs1LJdR+eNr+XmhfKIt62Jr:ybfEO2+Z2dQBWdcvQeTnSUkepFQOR+eh

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
  - bns.exe (PID: 3552)
  - SHIPPING DOCUMENTS 03 21 2019.exe (PID: 3952)
  - bns.exe (PID: 3012)
- Changes the autorun value in the registry
  - bns.exe (PID: 3012)
- REMCOS RAT was detected
  - RegSvcs.exe (PID: 2100)
SUSPICIOUS
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 2700)
  - SHIPPING DOCUMENTS 03 21 2019.exe (PID: 3952)
- Application launched itself
  - bns.exe (PID: 3552)
- Drop AutoIt3 executable file
  - SHIPPING DOCUMENTS 03 21 2019.exe (PID: 3952)
- Connects to unusual port
  - RegSvcs.exe (PID: 2100)
- Creates files in the user directory
  - RegSvcs.exe (PID: 2100)
INFO
- Dropped object may contain Bitcoin addresses
  - SHIPPING DOCUMENTS 03 21 2019.exe (PID: 3952)
  - bns.exe (PID: 3552)

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

2100

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

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

bns.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft .NET Services Installation Utility

Exit code:

Version:

4.6.1055.0 built by: NETFXREL2

Modules

Images
c:\users\admin\appdata\local\temp\regsvcs.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\advapi32.dll

2700

"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\43fc843b3960612e474ad0e9fd6270e4a298bd8820e1470763d0c8c54728cb1d.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

3012

C:\Users\admin\AppData\Local\Temp\14404544\bns.exe C:\Users\admin\AppData\Local\Temp\14404544\KIUHD

C:\Users\admin\AppData\Local\Temp\14404544\bns.exe

bns.exe

User:

admin

Company:

AutoIt Team

Integrity Level:

MEDIUM

Description:

AutoIt v3 Script

Exit code:

Version:

3, 3, 14, 5

Modules

Images
c:\users\admin\appdata\local\temp\14404544\bns.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\system32\version.dll

3552

"C:\Users\admin\AppData\Local\Temp\14404544\bns.exe" bfm=gse

C:\Users\admin\AppData\Local\Temp\14404544\bns.exe

—

SHIPPING DOCUMENTS 03 21 2019.exe

User:

admin

Company:

AutoIt Team

Integrity Level:

MEDIUM

Description:

AutoIt v3 Script

Exit code:

Version:

3, 3, 14, 5

Modules

Images
c:\users\admin\appdata\local\temp\14404544\bns.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\system32\version.dll

3952

"C:\Users\admin\AppData\Local\Temp\Rar$EXa2700.39729\SHIPPING DOCUMENTS 03 21 2019.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa2700.39729\SHIPPING DOCUMENTS 03 21 2019.exe

WinRAR.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa2700.39729\shipping documents 03 21 2019.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\comctl32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll

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Total events

798

Read events

778

Write events

Delete events

Modification events


(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\43fc843b3960612e474ad0e9fd6270e4a298bd8820e1470763d0c8c54728cb1d.rar
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(2700) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(2700) 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
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\phi.ppt		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\hnv.ico		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\wdu.txt		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\fbo.mp3		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\afj.mp4		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\hno.dat		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\etv.xl		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\ina.jpg		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\nrh.icm		text
		MD5:—	SHA256:—
3952	SHIPPING DOCUMENTS 03 21 2019.exe	C:\Users\admin\AppData\Local\Temp\14404544\ihu.dat		text
		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
2100	RegSvcs.exe	91.192.100.4:2404	plus11.duckdns.org	SOFTplus Entwicklungen GmbH	CH	malicious
2100	RegSvcs.exe	105.112.37.181:2404	plus12.duckdns.org	Celtel Nigeria Limited t.a ZAIN	NG	malicious

DNS requests

Domain	IP	Reputation
plus11.duckdns.org	91.192.100.4	malicious
plus12.duckdns.org	105.112.37.181	malicious

Threats

PID	Process	Class	Message
1048	svchost.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
1048	svchost.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
1048	svchost.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
1048	svchost.exe	Misc activity	ET INFO DYNAMIC_DNS Query to *.duckdns. Domain

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No debug info

General Info

43fc843b3960612e474ad0e9fd6270e4a298bd8820e1470763d0c8c54728cb1d.rar

8C4A748B0179DB4D2FCE7393745ABC53

806EFFFC4155285A1E418F59C171006F43C2D30F

43FC843B3960612E474AD0E9FD6270E4A298BD8820E1470763D0C8C54728CB1D

12288:dAbfuNhQ2+5B92dQBWd4JlvQbCEIwmSUktLe3ptHQJs1LJdR+eNr+XmhfKIt62Jr:ybfEO2+Z2dQBWdcvQeTnSUkepFQOR+eh

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

REMCOS RAT was detected

SUSPICIOUS

Executable content was dropped or overwritten

Application launched itself

Drop AutoIt3 executable file

Connects to unusual port

Creates files in the user directory

INFO

Dropped object may contain Bitcoin addresses

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