Malware analysis ECUSSignBasic.exe Malicious activity

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download:	ECUSSignBasic.exe
Full analysis:	https://app.any.run/tasks/91bfb14b-7881-4b7f-9f17-e0452e22102a
Verdict:	Malicious activity
Analysis date:	March 24, 2018, 06:57:03
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows, RAR self-extracting archive
MD5:	D574A4453E549EC025CA66D3A6951362
SHA1:	B4FA174DBC99A32589ACFA3854EEC96908D3D84F
SHA256:	BB45E997518A7BC3FE4C5D9CC038E93E4D2B1B464313C86CC74DD27F938A0EB8
SSDEEP:	49152:cuXNQPGQvzb5glwX7609aE/EIQ/vVzeqD5EApSEBbPTSYtlFmu39e:cudWzbqlwOwEIwvVtD5FS4b3C

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:

Software preset

Internet Explorer 8.0.7601.17514 undefined
7-Zip 16.04 (16.04)
Adobe Acrobat Reader DC MUI (15.007.20033)
Adobe Flash Player 26 ActiveX (26.0.0.137)
CCleaner (5.35)
FileZilla Client 3.31.0 (3.31.0)
Google Chrome (61.0.3163.100)
Google Update Helper (1.3.33.5)
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 Home and Business 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 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++ 2005 Redistributable (8.0.61001)
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++ 2012 Redistributable (x86) - 11.0.61030 (11.0.61030.0)
Microsoft Visual C++ 2012 x86 Additional Runtime - 11.0.61030 (11.0.61030)
Microsoft Visual C++ 2012 x86 Minimum Runtime - 11.0.61030 (11.0.61030)
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) - 14.12.25810 (14.12.25810.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.12.25810 (14.12.25810)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.12.25810 (14.12.25810)
Mozilla Firefox 55.0.3 (x86 en-US) (55.0.3)
Mozilla Maintenance Service (55.0.3)
Notepad++ (32-bit x86) (7.5.4)
Opera 12.15 (12.15.1748)
Skype™ 7.39 (7.39.102)
VLC media player (2.2.6)

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
WinMan WinIP Package TopLevel

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MALICIOUS
- Application loaded dropped or rewritten executable
  - ECUSSign.exe (PID: 2428)
- Application was dropped or rewritten from another process
  - ECUSSIGNBasicUpdater.exe (PID: 3156)
  - ECUSSIGNIni.exe (PID: 3728)
  - ECUSSign.exe (PID: 2428)
SUSPICIOUS
- Application launched itself
  - ECUSSignBasic.exe (PID: 2200)
- Creates files in the Windows directory
  - ECUSSignBasic.exe (PID: 3816)
INFO
- Loads rich edit control libraries
  - ECUSSignBasic.exe (PID: 2200)
  - ECUSSignBasic.exe (PID: 3816)
  - ECUSSign.exe (PID: 2428)
- Loads the .NET runtime environment
  - ECUSSIGNBasicUpdater.exe (PID: 3156)
  - ECUSSign.exe (PID: 2428)
- Dropped object may contain URL's
  - ECUSSign.exe (PID: 2428)
  - ECUSSignBasic.exe (PID: 3816)
- Reads settings of System Certificates
  - ECUSSign.exe (PID: 2428)

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 MS Visual C++ (generic) (42.2)
.exe	\|	Win64 Executable (generic) (37.3)
.dll	\|	Win32 Dynamic Link Library (generic) (8.8)
.exe	\|	Win32 Executable (generic) (6)
.exe	\|	Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2010:03:15 07:27:50+01:00
PEType:	PE32
LinkerVersion:	9
CodeSize:	67584
InitializedDataSize:	19968
UninitializedDataSize:	-
EntryPoint:	0xa7b1
OSVersion:	5
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	15-Mar-2010 06:27:50
Detected languages:	English - United States Process Default Language
Debug artifacts:	d:\Projects\WinRAR\SFX\build\sfxrar32\Release\sfxrar.pdb

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:	0x000000E8

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	5
Time date stamp:	15-Mar-2010 06:27:50
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_RELOCS_STRIPPED

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
.text	0x00001000	0x0001076E	0x00010800	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	6.57502
.rdata	0x00012000	0x00001865	0x00001A00	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	5.32677
.data	0x00014000	0x0000BFF4	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	3.5458
.CRT	0x00020000	0x00000010	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	0.213101
.rsrc	0x00021000	0x00002FCC	0x00003000	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	4.84762

Resources

Title	Entropy	Size	Codepage	Language	Type
1	5.20816	1464	Latin 1 / Western European	English - United States	RT_MANIFEST
7	3.24143	556	Latin 1 / Western European	English - United States	RT_STRING
8	3.28574	946	Latin 1 / Western European	English - United States	RT_STRING
9	3.04375	530	Latin 1 / Western European	English - United States	RT_STRING
10	3.15563	638	Latin 1 / Western European	English - United States	RT_STRING
11	2.02306	76	Latin 1 / Western European	English - United States	RT_STRING
100	1.91924	20	Latin 1 / Western European	Process Default Language	RT_GROUP_ICON
101	4.19099	2998	Latin 1 / Western European	English - United States	RT_BITMAP
ASKNEXTVOL	3.42606	642	Latin 1 / Western European	English - United States	RT_DIALOG
GETPASSWORD1	3.33783	310	Latin 1 / Western European	English - United States	RT_DIALOG

Imports


ADVAPI32.dll
COMCTL32.dll
COMDLG32.dll
GDI32.dll
KERNEL32.dll
OLEAUT32.dll
SHELL32.dll
USER32.dll
ole32.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

2200

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

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

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\ecussignbasic.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\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll

2428

C:\Windows\system32\ECUSSIGNBasic\ECUSSign.exe

—

ECUSSIGNIni.exe

User:

admin

Company:

TSD

Integrity Level:

HIGH

Description:

ECUSSign

Exit code:

Version:

1.0.0.0

Modules

Images
c:\windows\system32\ecussignbasic\ecussign.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

2544

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\l2dy7aai.cmdline"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe

—

ECUSSign.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Visual C# Command Line Compiler

Exit code:

Version:

8.0.50727.4927 (NetFXspW7.050727-4900)

Modules

Images
c:\windows\microsoft.net\framework\v2.0.50727\csc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.6195_none_d09154e044272b9a\msvcr80.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll

3156

C:\Windows\system32\ECUSSIGNBasic\Update\ECUSSIGNBasicUpdater.exe

—

ECUSSign.exe

User:

admin

Company:

ThaiSon

Integrity Level:

HIGH

Description:

ECUSSIGNBasicUpdater

Exit code:

Version:

1.0.0.0

Modules

Images
c:\windows\system32\ecussignbasic\update\ecussignbasicupdater.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

3728

"C:\Windows\system32\ECUSSIGNBasic\ECUSSIGNIni.exe"

C:\Windows\system32\ECUSSIGNBasic\ECUSSIGNIni.exe

—

ECUSSignBasic.exe

User:

admin

Company:

Thai Son

Integrity Level:

HIGH

Exit code:

Version:

1.00

Modules

Images
c:\windows\system32\ecussignbasic\ecussignini.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

3776

C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RESCD8C.tmp" "c:\Users\admin\AppData\Local\Temp\CSCCD8B.tmp"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe

—

csc.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Microsoft® Resource File To COFF Object Conversion Utility

Exit code:

Version:

8.00.50727.4940 (Win7SP1.050727-5400)

Modules

Images
c:\windows\microsoft.net\framework\v2.0.50727\cvtres.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.6195_none_d09154e044272b9a\msvcr80.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\cryptsp.dll

3816

"C:\Users\admin\AppData\Local\Temp\ECUSSignBasic.exe" -el -s2 "-dECUSSIGNBasic" "-p" "-sp"

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

ECUSSignBasic.exe

User:

admin

Integrity Level:

HIGH

Exit code:

Modules

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

597

Read events

577

Write events

Delete events

Modification events


(PID) Process:	(2200) ECUSSignBasic.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(2200) ECUSSignBasic.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1
(PID) Process:	(3816) ECUSSignBasic.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0
(PID) Process:	(3816) ECUSSignBasic.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	AutoDetect
Value: 1
(PID) Process:	(2428) ECUSSign.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\8F\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\ComputerKey.ico		image
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\errlog.txt		text
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\ECUSSign.XmlSerializers.dll		executable
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\WaitWindow.dll		executable
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\ECUSSIGNINI.exe		executable
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\ECUSSign.exe.Config		xml
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\NotifyDlg.dll		executable
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\ECUSSIGNManualUpdate.dll		executable
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\Help\HelpTrinhKy.doc		doc
		MD5:—	SHA256:—
3816	ECUSSignBasic.exe	C:\Windows\System32\ECUSSIGNBasic\Template\CX_HM.xsl		xml
		MD5:—	SHA256:—

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
—	—	GET	200	23.37.37.163:80	http://crl.verisign.com/pca3.crl	NL	der	1.05 Kb	whitelisted
—	—	GET	200	23.37.43.27:80	http://ocsp.verisign.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ%2FxkCfyHfJr7GQ6M658NRZ4SHo%2FAQUCPVR6Pv%2BPT1kNnxoz1t4qN%2B5xTcCEEQbcwIrkpjivMR79Nu8zXg%3D	NL	der	1.62 Kb	whitelisted

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
—	—	23.37.37.163:80	crl.verisign.com	Akamai Technologies, Inc.	NL	whitelisted
—	—	23.37.43.27:80	ocsp.verisign.com	Akamai Technologies, Inc.	NL	whitelisted

DNS requests

Domain	IP	Reputation
crl.verisign.com	23.37.37.163	whitelisted
ocsp.verisign.com	23.37.43.27	whitelisted

Threats

No threats detected

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No debug info

General Info

ECUSSignBasic.exe

D574A4453E549EC025CA66D3A6951362

B4FA174DBC99A32589ACFA3854EEC96908D3D84F

BB45E997518A7BC3FE4C5D9CC038E93E4D2B1B464313C86CC74DD27F938A0EB8

49152:cuXNQPGQvzb5glwX7609aE/EIQ/vVzeqD5EApSEBbPTSYtlFmu39e:cudWzbqlwOwEIwvVtD5FS4b3C

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application loaded dropped or rewritten executable

Application was dropped or rewritten from another process

SUSPICIOUS

Application launched itself

Creates files in the Windows directory

INFO

Loads rich edit control libraries

Loads the .NET runtime environment

Dropped object may contain URL's

Reads settings of System Certificates

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

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