download:

update.doc

Full analysis: https://app.any.run/tasks/f137cfd7-f684-4f19-9e28-fae77781de7a
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.

Malware Trends Tracker     >>>
Analysis date: January 10, 2019, 17:51:44
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
exploit
cve-2017-11882
loader
rat
remcos
Indicators:
MIME: text/rtf
File info: Rich Text Format data, unknown version
MD5:

B44DE49A2B2166CF33811FD70A959B86

SHA1:

CD416D0B1852B0889FABE877AF447C1751174B18

SHA256:

F09003C1635F7AB1DB672CF69516CE98B272C62F7A2E3C990E742C443DE094F7

SSDEEP:

96:o3sWv7oP8GtMjISs5OLjBHRi11AsaHMGOTsn:Os27OFcLs8nhRivTGh

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: 3232)

    • Application was dropped or rewritten from another process

      • WindowsSrv.exe (PID: 3116)
      • WindowsSrv.exe (PID: 3820)
      • WindowsSrv.exe (PID: 3920)
      • WinDir.exe (PID: 2480)
      • WindowsSrv.exe (PID: 3684)
      • WinDir.exe (PID: 2260)
      • WinDir.exe (PID: 2180)
      • WindowsSrv.exe (PID: 3784)
      • WindowsSrv.exe (PID: 3708)

    • Suspicious connection from the Equation Editor

      • EQNEDT32.EXE (PID: 3232)

    • Downloads executable files from the Internet

      • EQNEDT32.EXE (PID: 3232)

    • Changes the autorun value in the registry

      • WindowsSrv.exe (PID: 3820)
      • WinDir.exe (PID: 2180)

    • Runs PING.EXE for delay simulation

      • cmd.exe (PID: 3312)

    • REMCOS RAT was detected

      • WinDir.exe (PID: 2180)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • EQNEDT32.EXE (PID: 3232)
      • WindowsSrv.exe (PID: 3820)

    • Creates files in the user directory

      • EQNEDT32.EXE (PID: 3232)
      • WindowsSrv.exe (PID: 3820)
      • WinDir.exe (PID: 2180)

    • Application launched itself

      • WindowsSrv.exe (PID: 3116)
      • WindowsSrv.exe (PID: 3920)
      • WinDir.exe (PID: 2480)
      • WindowsSrv.exe (PID: 3684)

    • Starts CMD.EXE for commands execution

      • WindowsSrv.exe (PID: 3820)

  • INFO

    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 2984)

    • Creates files in the user directory

      • WINWORD.EXE (PID: 2984)
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
44
Monitored processes
13
Malicious processes
7
Suspicious processes
1

Behavior graph

Click at the process to see the details
start drop and start winword.exe no specs eqnedt32.exe windowssrv.exe no specs windowssrv.exe windowssrv.exe no specs cmd.exe no specs ping.exe no specs windir.exe no specs windowssrv.exe no specs #REMCOS windir.exe windir.exe no specs windowssrv.exe no specs windowssrv.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2180"C:\Users\admin\AppData\Roaming\WinDir\WinDir.exe" C:\Users\admin\AppData\Roaming\WinDir\WinDir.exe
WinDir.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\windir\windir.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
2260"C:\Users\admin\AppData\Roaming\WinDir\WinDir.exe" 2 2180 2499640C:\Users\admin\AppData\Roaming\WinDir\WinDir.exe—WinDir.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\windir\windir.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
2480"C:\Users\admin\AppData\Roaming\WinDir\WinDir.exe" C:\Users\admin\AppData\Roaming\WinDir\WinDir.exe—cmd.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\windir\windir.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
2984"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\update.doc.rtf"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE—explorer.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
3116"C:\Users\admin\AppData\Roaming\WindowsSrv.exe" C:\Users\admin\AppData\Roaming\WindowsSrv.exe—EQNEDT32.EXE
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\windowssrv.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
3232"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
3312cmd /c ""C:\Users\admin\AppData\Local\Temp\install.bat" "C:\Windows\system32\cmd.exe—WindowsSrv.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
1
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
3684"C:\Users\admin\AppData\Roaming\WindowsSrv.exe"C:\Users\admin\AppData\Roaming\WindowsSrv.exe—WindowsSrv.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\windowssrv.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
3708"C:\Users\admin\AppData\Roaming\WindowsSrv.exe"C:\Users\admin\AppData\Roaming\WindowsSrv.exe—WindowsSrv.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
1
Modules
Images
c:\users\admin\appdata\roaming\windowssrv.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
3784"C:\Users\admin\AppData\Roaming\WindowsSrv.exe" 2 3708 2507625C:\Users\admin\AppData\Roaming\WindowsSrv.exe—WindowsSrv.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\windowssrv.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
Total events
1 801
Read events
1 445
Write events
351
Delete events
5

Modification events

(PID) Process:(2984) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:r30
Value:
72333000A80B0000010000000000000000000000
(PID) Process:(2984) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
Off
(PID) Process:(2984) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
On
(PID) Process:(2984) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:WORDFiles
Value:
1311375381
(PID) Process:(2984) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1311375500
(PID) Process:(2984) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1311375501
(PID) Process:(2984) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word
Operation:writeName:MTTT
Value:
A80B0000C0B31F300DA9D40100000000
(PID) Process:(2984) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:+50
Value:
2B353000A80B000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(2984) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:delete valueName:+50
Value:
2B353000A80B000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(2984) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
Executable files
3
Suspicious files
0
Text files
3
Unknown types
2

Dropped files

PID
Process
Filename
Type
2984WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVR67F2.tmp.cvr —
MD5:—
SHA256:—
3232EQNEDT32.EXEC:\Users\admin\AppData\Roaming\WindowsSrv.exeexecutable
MD5:—
SHA256:—
2984WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:—
SHA256:—
2984WINWORD.EXEC:\Users\admin\AppData\Local\Temp\~$date.doc.rtfpgc
MD5:—
SHA256:—
2180WinDir.exeC:\Users\admin\AppData\Roaming\WinDir\logs.dattext
MD5:—
SHA256:—
3820WindowsSrv.exeC:\Users\admin\AppData\Roaming\WinDir\WinDir.exeexecutable
MD5:—
SHA256:—
3232EQNEDT32.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9ZEWH8D\137[1].exeexecutable
MD5:—
SHA256:—
3820WindowsSrv.exeC:\Users\admin\AppData\Local\Temp\install.battext
MD5:CFC40020904E33C2925AE7BB81EFEA9A
SHA256:B5420203DA9B8BD53A9EA32B69EBE8C3EC6581977FED8298E5D553FC9450C713
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
5
DNS requests
3
Threats
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3232
EQNEDT32.EXE
GET
200
64.32.6.209:80
http://micosoftoutlook.dns04.com/host/137.exe
US
executable
762 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
3232
EQNEDT32.EXE
64.32.6.209:80
micosoftoutlook.dns04.com
Sharktech
US
malicious
2180
WinDir.exe
77.48.28.216:137
—
Liberty Global Operations B.V.
CZ
malicious

DNS requests

Domain
IP
Reputation
micosoftoutlook.dns04.com
  • 64.32.6.209
malicious
dns.msftncsi.com
  • 131.107.255.255
shared

Threats

PID
Process
Class
Message
3232
EQNEDT32.EXE
A Network Trojan was detected
ET CURRENT_EVENTS Possible Malicious Macro DL EXE Feb 2016
3232
EQNEDT32.EXE
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
1 ETPRO signatures available at the full report
No debug info
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Reports
update.doc