Malware analysis po.exe Malicious activity | ANY.RUN

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download:	po.exe
Full analysis:	https://app.any.run/tasks/95265a3a-5b48-4732-8cb8-5dc902d11336
Verdict:	Malicious activity
Threats:	njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world. njRAT ist ein Trojaner für den Fernzugriff. Es handelt sich um einen der am weitesten verbreiteten RATs auf dem Markt, der eine Fülle von Bildungsinformationen bietet. Interessierte Angreifer können sogar Tutorials auf YouTube finden. Dies macht ihn zu einem der beliebtesten RATs der Welt. 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, 15:51:53
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	trojan rat njrat bladabindi
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:	2872008AD51FCA4C383F41D62D03F385
SHA1:	FFCB065E75F827544703925D1F895BE20D9DFB31
SHA256:	D3755BE2034711B3F76F9FB91740C23312B7083D1DF0DD15D934C78378AA6BA1
SSDEEP:	12288:KNawWPBPi6Py4MdYcBxGS9dttCvFxTwZbmzYv4dEgmn1EWTSPNyKqmrkUr/V4rSk:9wWPBPi6Py4MXFjCDSrBS/c

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:: 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
- NJRAT was detected
  - RegAsm.exe (PID: 1744)
  - RegAsm.exe (PID: 1744)
- Connects to CnC server
  - RegAsm.exe (PID: 1744)
- Writes to a start menu file
  - po.exe (PID: 700)
SUSPICIOUS
- Creates files in the program directory
  - po.exe (PID: 700)
- Creates files in the user directory
  - po.exe (PID: 700)
- Executable content was dropped or overwritten
  - po.exe (PID: 700)
- Connects to unusual port
  - RegAsm.exe (PID: 1744)
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

.exe	\|	Generic CIL Executable (.NET, Mono, etc.) (82.9)
.dll	\|	Win32 Dynamic Link Library (generic) (7.4)
.exe	\|	Win32 Executable (generic) (5.1)
.exe	\|	Generic Win/DOS Executable (2.2)
.exe	\|	DOS Executable Generic (2.2)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2018:11:05 19:28:10+01:00
PEType:	PE32
LinkerVersion:	11
CodeSize:	664064
InitializedDataSize:	164352
UninitializedDataSize:	-
EntryPoint:	0xa40ae
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	3.37.4.0
ProductVersionNumber:	3.37.4.0
FileFlagsMask:	0x0000
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Unicode
CompanyName:	Tim Kosse
FileDescription:	FileZilla FTP Client
FileVersion:	3.37.4
LegalCopyright:	Tim Kosse
OriginalFileName:	FileZilla_3.37.4_win32-setup.exe
ProductName:	FileZilla
ProductVersion:	3.37.4

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	05-Nov-2018 18:28:10
Detected languages:	English - United States
Debug artifacts:	c:\xampp\htdocs\crypting\OTgTKqbgBoRKsZah\UWqk3tuTujHqjETS.pdb
CompanyName:	Tim Kosse
FileDescription:	FileZilla FTP Client
FileVersion:	3.37.4
LegalCopyright:	Tim Kosse
OriginalFilename:	FileZilla_3.37.4_win32-setup.exe
ProductName:	FileZilla
ProductVersion:	3.37.4

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x0090
Pages in file:	0x0003
Relocations:	0x0000
Size of header:	0x0004
Min extra paragraphs:	0x0000
Max extra paragraphs:	0xFFFF
Initial SS value:	0x0000
Initial SP value:	0x00B8
Checksum:	0x0000
Initial IP value:	0x0000
Initial CS value:	0x0000
Overlay number:	0x0000
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x00000080

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	3
Time date stamp:	05-Nov-2018 18:28:10
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
.text	0x00002000	0x000A20B4	0x000A2200	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	4.50777
.rsrc	0x000A6000	0x00027F42	0x00028000	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	5.14639
.reloc	0x000CE000	0x0000000C	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ	0.10191

Resources

Title	Entropy	Size	Codepage	Language	Type
0	3.04267	118	Latin 1 / Western European	English - United States	RT_GROUP_ICON
1	5.00112	490	Latin 1 / Western European	UNKNOWN	RT_MANIFEST
2	5.22417	38056	Latin 1 / Western European	English - United States	RT_ICON
3	5.26122	21640	Latin 1 / Western European	English - United States	RT_ICON
4	4.99772	16936	Latin 1 / Western European	English - United States	RT_ICON
5	5.41907	9640	Latin 1 / Western European	English - United States	RT_ICON
6	5.35151	4264	Latin 1 / Western European	English - United States	RT_ICON
7	5.73383	2440	Latin 1 / Western European	English - United States	RT_ICON
8	5.68114	1128	Latin 1 / Western European	English - United States	RT_ICON

Imports


mscoree.dll

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

700

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

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

explorer.exe

User:

admin

Company:

Tim Kosse

Integrity Level:

MEDIUM

Description:

FileZilla FTP Client

Exit code:

Version:

3.37.4

Modules

Images
c:\users\admin\appdata\local\temp\po.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

1744

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

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

po.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

3484

C:\Windows\system32\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}

C:\Windows\system32\DllHost.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

COM Surrogate

Exit code:

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\dllhost.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\ole32.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

757

Read events

749

Write events

Delete events

Modification events


(PID) Process:	(700) po.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached
Operation:	write	Name:	{FFE2A43C-56B9-4BF5-9A79-CC6D4285608A} {00000122-0000-0000-C000-000000000046} 0xFFFF
Value: 010000000000000082D99B087B77D401
(PID) Process:	(3484) DllHost.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication
Operation:	write	Name:	Name
Value: DllHost.exe
(PID) Process:	(700) po.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication
Operation:	write	Name:	Name
Value: po.exe
(PID) Process:	(1744) RegAsm.exe	Key:	HKEY_CURRENT_USER
Operation:	write	Name:	di
Value: !
(PID) Process:	(1744) RegAsm.exe	Key:	HKEY_CURRENT_USER\Environment
Operation:	write	Name:	SEE_MASK_NOZONECHECKS
Value: 1
(PID) Process:	(1744) RegAsm.exe	Key:	HKEY_CURRENT_USER\Software\6b521c0170a2946734b0a5f000030886
Operation:	write	Name:	[kl]
Value:

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
700	po.exe	C:\Users\admin\AppData\Roaming\fFYiVYOyKvUq.jpg		image
		MD5:—	SHA256:—
700	po.exe	C:\ProgramData\ooooo\ooooo.exe		executable
		MD5:—	SHA256:—
700	po.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\po.url		text
		MD5:—	SHA256:—

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

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
1744	RegAsm.exe	23.105.131.148:8786	xcv2345892734hjsdf872384.publicvm.com	Nobis Technology Group, LLC	US	malicious

DNS requests

Domain	IP	Reputation
xcv2345892734hjsdf872384.publicvm.com	23.105.131.148	malicious

Threats

PID	Process	Class	Message
1744	RegAsm.exe	A Network Trojan was detected	MALWARE [PTsecurity] njRAT.Gen RAT outbound connection

3 ETPRO signatures available at the full report

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No debug info

General Info

po.exe

2872008AD51FCA4C383F41D62D03F385

FFCB065E75F827544703925D1F895BE20D9DFB31

D3755BE2034711B3F76F9FB91740C23312B7083D1DF0DD15D934C78378AA6BA1

12288:KNawWPBPi6Py4MdYcBxGS9dttCvFxTwZbmzYv4dEgmn1EWTSPNyKqmrkUr/V4rSk:9wWPBPi6Py4MXFjCDSrBS/c

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

NJRAT was detected

Connects to CnC server

Writes to a start menu file

SUSPICIOUS

Creates files in the program directory

Creates files in the user directory

Executable content was dropped or overwritten

Connects to unusual port

INFO

Malware configuration

Static information

TRiD

EXIF

EXE

Summary

DOS Header

PE Headers

Sections

Resources

Imports

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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