Malware analysis beortyx.exe Malicious activity | ANY.RUN

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File name:	beortyx.exe
Full analysis:	https://app.any.run/tasks/aad467ea-3d31-41cf-8a1a-6e7844dd5211
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:	February 19, 2019, 14:13:03
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	rat nanocore trojan
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows
MD5:	BFBDD6C7989C8A227237754CE9F59891
SHA1:	CBF10C843E564D71AA12D136282048E20B0443B7
SHA256:	0D667EF8F7D0E43978AA7B3BC1FA20555909581DF9A5CC951096C75A236A933C
SSDEEP:	12288:G4agwW3BFuZseLhs1W7Trzx5GFVEEwzNRPB7Xt984iAy0z:7h5QZseLgW/ZcFpcNB7XtSM

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:: on
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
- Writes to a start menu file
  - beortyx.exe (PID: 2816)
  - beortyx.exe (PID: 3332)
- Changes the autorun value in the registry
  - beortyx.exe (PID: 3056)
  - beortyx.exe (PID: 2464)
- NanoCore was detected
  - beortyx.exe (PID: 3056)
- Loads the Task Scheduler COM API
  - schtasks.exe (PID: 3864)
  - schtasks.exe (PID: 2772)
- Uses Task Scheduler to run other applications
  - beortyx.exe (PID: 2464)
- NANOCORE was detected
  - beortyx.exe (PID: 2464)
- Connects to CnC server
  - beortyx.exe (PID: 2464)
SUSPICIOUS
- Creates files in the user directory
  - beortyx.exe (PID: 3056)
  - beortyx.exe (PID: 2816)
  - beortyx.exe (PID: 3332)
  - beortyx.exe (PID: 2464)
- Application launched itself
  - beortyx.exe (PID: 2816)
  - beortyx.exe (PID: 3056)
  - beortyx.exe (PID: 3332)
- Executable content was dropped or overwritten
  - beortyx.exe (PID: 3056)
  - beortyx.exe (PID: 2464)
- Creates files in the program directory
  - beortyx.exe (PID: 2464)
- Connects to unusual port
  - beortyx.exe (PID: 2464)
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	\|	Win32 Executable Delphi generic (37.4)
.scr	\|	Windows screen saver (34.5)
.exe	\|	Win32 Executable (generic) (11.9)
.exe	\|	Win16/32 Executable Delphi generic (5.4)
.exe	\|	Generic Win/DOS Executable (5.2)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	1992:03:02 19:09:22+01:00
PEType:	PE32
LinkerVersion:	2.25
CodeSize:	395264
InitializedDataSize:	287744
UninitializedDataSize:	-
EntryPoint:	0x61638
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	02-Mar-1992 18:09:22
Detected languages:	English - United States

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x0050
Pages in file:	0x0002
Relocations:	0x0000
Size of header:	0x0004
Min extra paragraphs:	0x000F
Max extra paragraphs:	0xFFFF
Initial SS value:	0x0000
Initial SP value:	0x00B8
Checksum:	0x0000
Initial IP value:	0x0000
Initial CS value:	0x0000
Overlay number:	0x001A
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x00000100

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	8
Time date stamp:	02-Mar-1992 18:09:22
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_BYTES_REVERSED_HI IMAGE_FILE_BYTES_REVERSED_LO IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
CODE	0x00001000	0x00060680	0x00060800	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	6.61474
DATA	0x00062000	0x0000192C	0x00001A00	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	4.56232
BSS	0x00064000	0x00000E31	0x00000000	IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0
.idata	0x00065000	0x000021D0	0x00002200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	4.89812
.tls	0x00068000	0x00000010	0x00000000	IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0
.rdata	0x00069000	0x00000018	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	0.200582
.reloc	0x0006A000	0x00006F88	0x00007000	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	6.6451
.rsrc	0x00071000	0x0003B464	0x0003B600	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	7.61586

Resources

Title	Entropy	Size	Codepage	Language	Type
1	4.01277	1128	Latin 1 / Western European	English - United States	RT_ICON
2	2.80231	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
3	3.00046	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
4	2.56318	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
5	2.6949	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
6	2.62527	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
7	2.91604	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
284	5.37967	1093	Latin 1 / Western European	English - United States	RT_CURSOR
285	7.52838	1093	Latin 1 / Western European	English - United States	RT_CURSOR
286	7.56068	1093	Latin 1 / Western European	English - United States	RT_CURSOR

Imports


advapi32.dll
comctl32.dll
comdlg32.dll
gdi32.dll
kernel32.dll
oleaut32.dll
user32.dll
version.dll
winspool.drv

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
2816	"C:\Users\admin\AppData\Roaming\beortyx.exe"	C:\Users\admin\AppData\Roaming\beortyx.exe		explorer.exe
User: admin Integrity Level: MEDIUM Exit code: 0
3056	"C:\Users\admin\AppData\Roaming\beortyx.exe"	C:\Users\admin\AppData\Roaming\beortyx.exe		beortyx.exe
User: admin Integrity Level: MEDIUM Exit code: 0
3332	"C:\Users\admin\AppData\Roaming\beortyx.exe"	C:\Users\admin\AppData\Roaming\beortyx.exe		beortyx.exe
User: admin Integrity Level: HIGH Exit code: 0
2464	"C:\Users\admin\AppData\Roaming\beortyx.exe"	C:\Users\admin\AppData\Roaming\beortyx.exe		beortyx.exe
User: admin Integrity Level: HIGH
3864	"schtasks.exe" /create /f /tn "TCP Monitor" /xml "C:\Users\admin\AppData\Local\Temp\tmp8EA0.tmp"	C:\Windows\system32\schtasks.exe	—	beortyx.exe
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255)
2772	"schtasks.exe" /create /f /tn "TCP Monitor Task" /xml "C:\Users\admin\AppData\Local\Temp\tmp8F1E.tmp"	C:\Windows\system32\schtasks.exe	—	beortyx.exe
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255)

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Total events

382

Read events

375

Write events

Delete events

Modification events


(PID) Process:	(3056) beortyx.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	TCP Monitor
Value: C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe
(PID) Process:	(3056) beortyx.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(3056) beortyx.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1
(PID) Process:	(2464) beortyx.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	TCP Monitor
Value: C:\Program Files\TCP Monitor\tcpmon.exe
(PID) Process:	(2464) beortyx.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:	delete value	Name:	TCP Monitor
Value: C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2464	beortyx.exe	C:\Users\admin\AppData\Local\Temp\tmp8EA0.tmp		—
		MD5:—	SHA256:—
3056	beortyx.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		binary
		MD5:1864F8D784DB74ECB3DF9CC82C6373BC	SHA256:B4080DC8050CEF8BBBB33335A5946E83686CA83ACFA049103FD52ED3CB711B08
2816	beortyx.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\datemonitor.vbs		text
		MD5:D56122FD93E382B7380F5C758D2E2EC0	SHA256:56AC1BE3A23D6BECDA14264D579083638F8B9B7591F6369AC908DDACC44E191E
3332	beortyx.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\datemonitor.vbs		text
		MD5:D56122FD93E382B7380F5C758D2E2EC0	SHA256:56AC1BE3A23D6BECDA14264D579083638F8B9B7591F6369AC908DDACC44E191E
2464	beortyx.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\task.dat		text
		MD5:CD03DF71CC9EC10712F0E143EAFFDD96	SHA256:0BC8DFF0AC995D07A0F6A4493B004C232E854DB978121F2B969D4F6C03BD415F
3056	beortyx.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe		executable
		MD5:BFBDD6C7989C8A227237754CE9F59891	SHA256:0D667EF8F7D0E43978AA7B3BC1FA20555909581DF9A5CC951096C75A236A933C
2464	beortyx.exe	C:\Program Files\TCP Monitor\tcpmon.exe		executable
		MD5:BFBDD6C7989C8A227237754CE9F59891	SHA256:0D667EF8F7D0E43978AA7B3BC1FA20555909581DF9A5CC951096C75A236A933C
2464	beortyx.exe	C:\Users\admin\AppData\Local\Temp\tmp8F1E.tmp		xml
		MD5:E4118E3EC98934AA1D4235C87B44AA31	SHA256:EFC475D73603DF6A26978D7BCAC27004830137E97FDD1656140B4A08C07470D9

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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
2464	beortyx.exe	194.5.99.154:1610	—	—	FR	malicious

DNS requests

No data

Threats

PID	Process	Class	Message
2464	beortyx.exe	A Network Trojan was detected	ET TROJAN Possible NanoCore C2 60B
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT
2464	beortyx.exe	A Network Trojan was detected	MALWARE [PTsecurity] NanoCore.RAT

54 ETPRO signatures available at the full report

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No debug info

General Info

beortyx.exe

BFBDD6C7989C8A227237754CE9F59891

CBF10C843E564D71AA12D136282048E20B0443B7

0D667EF8F7D0E43978AA7B3BC1FA20555909581DF9A5CC951096C75A236A933C

12288:G4agwW3BFuZseLhs1W7Trzx5GFVEEwzNRPB7Xt984iAy0z:7h5QZseLgW/ZcFpcNB7XtSM

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Writes to a start menu file

Changes the autorun value in the registry

NanoCore was detected

Loads the Task Scheduler COM API

Uses Task Scheduler to run other applications

NANOCORE was detected

Connects to CnC server

SUSPICIOUS

Creates files in the user directory

Application launched itself

Executable content was dropped or overwritten

Creates files in the program directory

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

Information

Information

Information

Information

Information

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings