Malware analysis TRANSF_EXT.uue Malicious activity | ANY.RUN

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File name:	TRANSF_EXT.uue
Full analysis:	https://app.any.run/tasks/04039b4d-3530-4127-b242-90a9471d1c2b
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:	April 25, 2019, 07:20:08
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, v4, os: Win32
MD5:	3F239F87EA538756B045FBC9471ACAB7
SHA1:	4317336BAB591C1CBC93941F5C03970CA12980FC
SHA256:	27F77E414A9BF2525D5F58F913FEA54F6E236E01B01E302CE67A44D3EC17245D
SSDEEP:	12288:+mY7p/2fM40pgbJrVa7DgTu8ROC3Li10WWfDF+48+FADF:RY1ef8ObJrVaITTROCbwE78rDF

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:: 120 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 60 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 (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
  - TRANSF_EXT.exe (PID: 2620)
  - TRANSF_EXT.exe (PID: 488)
  - TRANSF_EXT.exe (PID: 1668)
- NanoCore was detected
  - TRANSF_EXT.exe (PID: 488)
- Writes to a start menu file
  - TRANSF_EXT.exe (PID: 2620)
- Connects to CnC server
  - TRANSF_EXT.exe (PID: 488)
- Actions looks like stealing of personal data
  - vbc.exe (PID: 3092)
SUSPICIOUS
- Creates files in the user directory
  - TRANSF_EXT.exe (PID: 2620)
  - TRANSF_EXT.exe (PID: 488)
- Application launched itself
  - TRANSF_EXT.exe (PID: 2620)
- Executes scripts
  - TRANSF_EXT.exe (PID: 488)
- Loads DLL from Mozilla Firefox
  - vbc.exe (PID: 1000)
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 (v-4.x) (58.3)
.rar	\|	RAR compressed archive (gen) (41.6)

EXIF

ZIP

CompressedSize:	467001
UncompressedSize:	1227776
OperatingSystem:	Win32
ModifyDate:	2019:04:24 09:38:25
PackingMethod:	Normal
ArchivedFileName:	TRANSF_EXT.exe

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

488

"C:\Users\admin\Desktop\TRANSF_EXT.exe"

C:\Users\admin\Desktop\TRANSF_EXT.exe

TRANSF_EXT.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\desktop\transf_ext.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\psapi.dll
c:\windows\system32\shlwapi.dll

1000

"c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\admin\AppData\Local\Temp\ekglncc5.ppl"

c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe

—

TRANSF_EXT.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Visual Basic Command Line Compiler

Exit code:

Version:

8.0.50727.5420

Modules

Images
c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.17514_none_ec83dffa859149af\comctl32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll

1668

"C:\Users\admin\Desktop\TRANSF_EXT.exe" 2 488 1157468

C:\Users\admin\Desktop\TRANSF_EXT.exe

—

TRANSF_EXT.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\desktop\transf_ext.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

2416

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

2432

"C:\Windows\system32\taskmgr.exe" /4

C:\Windows\system32\taskmgr.exe

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Task Manager

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

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

2620

"C:\Users\admin\Desktop\TRANSF_EXT.exe"

C:\Users\admin\Desktop\TRANSF_EXT.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\desktop\transf_ext.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

3092

"c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\admin\AppData\Local\Temp\in2a3usx.c1j"

c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe

TRANSF_EXT.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Visual Basic Command Line Compiler

Exit code:

Version:

8.0.50727.5420

Modules

Images
c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.17514_none_ec83dffa859149af\comctl32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll

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Total events

495

Read events

474

Write events

Delete events

Modification events


(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\TRANSF_EXT.uue.rar
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\MainWin
Operation:	write	Name:	Placement
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF42000000420000000204000037020000
(PID) Process:	(2416) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\General
Operation:	write	Name:	LastFolder
Value: C:\Users\admin\AppData\Local\Temp

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2416	WinRAR.exe	C:\Users\admin\AppData\Local\Temp\Rar$DRa2416.33307\TRANSF_EXT.exe		—
		MD5:—	SHA256:—
3092	vbc.exe	C:\Users\admin\AppData\Local\Temp\in2a3usx.c1j		—
		MD5:—	SHA256:—
1000	vbc.exe	C:\Users\admin\AppData\Local\Temp\ekglncc5.ppl		—
		MD5:—	SHA256:—
2620	TRANSF_EXT.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Host Process for Windows Tasks .vbs		text
		MD5:—	SHA256:—
488	TRANSF_EXT.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		binary
		MD5:—	SHA256:—
488	TRANSF_EXT.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.dat		bs
		MD5:32D0AAE13696FF7F8AF33B2D22451028	SHA256:5347661365E7AD2C1ACC27AB0D150FFA097D9246BB3626FCA06989E976E8DD29
488	TRANSF_EXT.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.dat		binary
		MD5:963D5E2C9C0008DFF05518B47C367A7F	SHA256:5EACF2974C9BB2C2E24CDC651C4840DD6F4B76A98F0E85E90279F1DBB2E6F3C0
488	TRANSF_EXT.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

HTTP requests

No HTTP requests

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
488	TRANSF_EXT.exe	191.101.151.15:1990	—	Xtudio Networks S.L.U	ES	malicious

DNS requests

No data

Threats

PID	Process	Class	Message
488	TRANSF_EXT.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
488	TRANSF_EXT.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
488	TRANSF_EXT.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
488	TRANSF_EXT.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
488	TRANSF_EXT.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT

17 ETPRO signatures available at the full report

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No debug info

General Info

TRANSF_EXT.uue

3F239F87EA538756B045FBC9471ACAB7

4317336BAB591C1CBC93941F5C03970CA12980FC

27F77E414A9BF2525D5F58F913FEA54F6E236E01B01E302CE67A44D3EC17245D

12288:+mY7p/2fM40pgbJrVa7DgTu8ROC3Li10WWfDF+48+FADF:RY1ef8ObJrVaITTROCbwE78rDF

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

NanoCore was detected

Writes to a start menu file

Connects to CnC server

Actions looks like stealing of personal data

SUSPICIOUS

Creates files in the user directory

Application launched itself

Executes scripts

Loads DLL from Mozilla Firefox

INFO

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

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