Malware analysis 20181108_DocScan4460872570240627.pdf.z Malicious activity

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download:	20181108_DocScan4460872570240627.pdf.z
Full analysis:	https://app.any.run/tasks/aea76ea1-3c16-45ed-952b-5208863d73b2
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:	November 08, 2018, 07:22:06
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	rat nanocore trojan
Indicators:
MIME:	application/x-rar
File info:	RAR archive data, v5
MD5:	77BAFA004EEC26EDA9E23754BEB17577
SHA1:	15689B09C6D93E039A0DB0BD6D2031DEDCF360FD
SHA256:	18E3A0BA0122A99D685A5D22CC8A67DD75B082655BA9C8274292D1CB52752315
SSDEEP:	6144:BEIi8WwGpBNiY9MzS0eJZp0nfkMnRUKIDSDQ0Nez8bvBrdNMFq5l/ci26XyT1wOk:hWwGpuXzdeJZp0fkMnRUKIDn0NeQlsF0

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:: 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
  - 20181108_DocScan4460872570240624.exe (PID: 968)
  - Hjemtages5.exe (PID: 2392)
- Uses Task Scheduler to run other applications
  - 20181108_DocScan4460872570240624.exe (PID: 968)
- Loads the Task Scheduler COM API
  - schtasks.exe (PID: 1336)
  - schtasks.exe (PID: 2712)
- Changes the autorun value in the registry
  - reg.EXE (PID: 2212)
  - Hjemtages5.exe (PID: 2392)
- NanoCore was detected
  - Hjemtages5.exe (PID: 2392)
- Connects to CnC server
  - Hjemtages5.exe (PID: 2392)
SUSPICIOUS
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 1840)
  - 20181108_DocScan4460872570240624.exe (PID: 968)
  - Hjemtages5.exe (PID: 2392)
- Creates files in the user directory
  - Hjemtages5.exe (PID: 2392)
- Connects to unusual port
  - Hjemtages5.exe (PID: 2392)
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

968

"C:\Users\admin\Desktop\20181108_DocScan4460872570240624.exe"

C:\Users\admin\Desktop\20181108_DocScan4460872570240624.exe

explorer.exe

User:

admin

Company:

Blyantstifterne

Integrity Level:

MEDIUM

Description:

Vurofenceen

Exit code:

Version:

4.06.0003

Modules

Images
c:\users\admin\desktop\20181108_docscan4460872570240624.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvbvm60.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

1336

"C:\Windows\System32\schtasks.exe" /Create /SC HOURLY /MO 23 /TN "PUNTIES" /TR "reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "\""PUNTIES"\"" /f /t REG_SZ /d "\""C:\Users\admin\AppData\Local\Temp\Hjemtages5.exe\""

C:\Windows\System32\schtasks.exe

—

20181108_DocScan4460872570240624.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Manages scheduled tasks

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\schtasks.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\ole32.dll

1840

"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Desktop\20181108_DocScan4460872570240627.pdf.z.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

2212

C:\Windows\system32\reg.EXE add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "PUNTIES" /f /t REG_SZ /d "C:\Users\admin\AppData\Local\Temp\Hjemtages5.exe"

C:\Windows\system32\reg.EXE

taskeng.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Registry Console Tool

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\reg.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\user32.dll
c:\windows\system32\gdi32.dll

2392

"C:\Users\admin\AppData\Local\Temp\Hjemtages5.exe"

C:\Users\admin\AppData\Local\Temp\Hjemtages5.exe

20181108_DocScan4460872570240624.exe

User:

admin

Company:

Blyantstifterne

Integrity Level:

MEDIUM

Description:

Vurofenceen

Exit code:

Version:

4.06.0003

Modules

Images
c:\users\admin\appdata\local\temp\hjemtages5.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvbvm60.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

2712

"C:\Windows\System32\schtasks.exe" /run /tn "PUNTIES"

C:\Windows\System32\schtasks.exe

—

20181108_DocScan4460872570240624.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Manages scheduled tasks

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\schtasks.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\ole32.dll

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Total events

763

Read events

738

Write events

Delete events

Modification events


(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\Desktop\20181108_DocScan4460872570240627.pdf.z.rar
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\MainWin
Operation:	write	Name:	Placement
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF42000000420000000204000037020000
(PID) Process:	(1840) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\General
Operation:	write	Name:	LastFolder
Value: C:\Users\admin\Desktop

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Executable files

Suspicious files

Text files

153

Unknown types

Dropped files

PID	Process	Filename		Type
968	20181108_DocScan4460872570240624.exe	C:\Users\admin\AppData\Local\VirtualStore\Windows\Surofenceen		text
		MD5:—	SHA256:—
1840	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$DRa1840.27248\20181108_DocScan4460872570240624.exe		executable
		MD5:—	SHA256:—
968	20181108_DocScan4460872570240624.exe	C:\Users\admin\AppData\Local\Temp\Hjemtages5.exe		executable
		MD5:—	SHA256:—
968	20181108_DocScan4460872570240624.exe	C:\Users\admin\AppData\Local\Temp\~DF15EBB2814C71255A.TMP		binary
		MD5:—	SHA256:—
2392	Hjemtages5.exe	C:\Users\admin\AppData\Local\VirtualStore\Windows\Surofenceen		text
		MD5:—	SHA256:—
2392	Hjemtages5.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		binary
		MD5:—	SHA256:—
2392	Hjemtages5.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe		executable
		MD5:—	SHA256:—
2392	Hjemtages5.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.dat		bs
		MD5:32D0AAE13696FF7F8AF33B2D22451028	SHA256:5347661365E7AD2C1ACC27AB0D150FFA097D9246BB3626FCA06989E976E8DD29
2392	Hjemtages5.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.dat		binary
		MD5:963D5E2C9C0008DFF05518B47C367A7F	SHA256:5EACF2974C9BB2C2E24CDC651C4840DD6F4B76A98F0E85E90279F1DBB2E6F3C0
2392	Hjemtages5.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\settings.bin		binary
		MD5:4E5E92E2369688041CC82EF9650EDED2	SHA256:F8098A6290118F2944B9E7C842BD014377D45844379F863B00D54515A8A64B48

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

100

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
2392	Hjemtages5.exe	185.244.30.121:7878	irokko.ddns.net	—	—	malicious
2392	Hjemtages5.exe	8.8.8.8:53	—	Google Inc.	US	malicious

DNS requests

Domain	IP	Reputation
irokko.ddns.net	185.244.30.121	unknown

Threats

PID	Process	Class	Message
2392	Hjemtages5.exe	A Network Trojan was detected	SC BAD_UNKNOWN DYNAMIC_DNS Query to a Suspicious *.ddns.net Domain
2392	Hjemtages5.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2392	Hjemtages5.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 64B
2392	Hjemtages5.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 64B
2392	Hjemtages5.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 64B
2392	Hjemtages5.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2392	Hjemtages5.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 64B
2392	Hjemtages5.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 64B
2392	Hjemtages5.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 64B
2392	Hjemtages5.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 64B

68 ETPRO signatures available at the full report

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No debug info

General Info

20181108_DocScan4460872570240627.pdf.z

77BAFA004EEC26EDA9E23754BEB17577

15689B09C6D93E039A0DB0BD6D2031DEDCF360FD

18E3A0BA0122A99D685A5D22CC8A67DD75B082655BA9C8274292D1CB52752315

6144:BEIi8WwGpBNiY9MzS0eJZp0nfkMnRUKIDSDQ0Nez8bvBrdNMFq5l/ci26XyT1wOk:hWwGpuXzdeJZp0fkMnRUKIDn0NeQlsF0

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

Uses Task Scheduler to run other applications

Loads the Task Scheduler COM API

Changes the autorun value in the registry

NanoCore was detected

Connects to CnC server

SUSPICIOUS

Executable content was dropped or overwritten

Creates files in the user directory

Connects to unusual port

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

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings