File name:

07_09_19 _11_42_44_gelenmail.doc

Full analysis: https://app.any.run/tasks/3368c697-1bb3-4a45-bb3b-96ace709b684
Verdict: Malicious activity
Threats:

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.

Analysis date: July 11, 2019, 16:39:14
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
opendir
exploit
cve-2017-11882
rat
remcos
Indicators:
MIME: text/rtf
File info: Rich Text Format data, unknown version
MD5:

6FF7F083AB1EBC9E1BB789D6C46E5B83

SHA1:

083A00A32CEA6F65ED4B2B69E0B75EDB84E6C50F

SHA256:

76D14D6BF06D167349029523B223ADAACB7A612CBCC318D58ECE849A9C59A944

SSDEEP:

96:vism2xPbdVMx0V9UIaV2FIIFAgUF1XwOermejQHLNK2S:RjwyV9U70RUF1Xi4JK/

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

    • Application was dropped or rewritten from another process

      • wyval.exe (PID: 3168)
      • wyval.exe (PID: 3232)
    • Equation Editor starts application (CVE-2017-11882)

      • EQNEDT32.EXE (PID: 3496)
    • REMCOS was detected

      • wyval.exe (PID: 3232)
    • REMCOS RAT was detected

      • wyval.exe (PID: 3232)
    • Detected logs from REMCOS RAT

      • wyval.exe (PID: 3232)
    • Changes the autorun value in the registry

      • wyval.exe (PID: 3168)
    • Downloads executable files from the Internet

      • EQNEDT32.EXE (PID: 3496)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • EQNEDT32.EXE (PID: 3496)
      • wyval.exe (PID: 3168)
    • Suspicious files were dropped or overwritten

      • wyval.exe (PID: 3168)
    • Creates files in the user directory

      • EQNEDT32.EXE (PID: 3496)
      • wyval.exe (PID: 3232)
    • Application launched itself

      • wyval.exe (PID: 3168)
    • Writes files like Keylogger logs

      • wyval.exe (PID: 3232)
    • Executed via COM

      • EQNEDT32.EXE (PID: 3496)
  • INFO

    • Creates files in the user directory

      • WINWORD.EXE (PID: 2900)
    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 2900)
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.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
37
Monitored processes
4
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start drop and start winword.exe no specs eqnedt32.exe wyval.exe #REMCOS wyval.exe

Process information

PID
CMD
Path
Indicators
Parent process
2900"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\07_09_19 _11_42_44_gelenmail.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\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.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
3168"C:\Users\admin\AppData\Roaming\wyval.exe"C:\Users\admin\AppData\Roaming\wyval.exe
EQNEDT32.EXE
User:
admin
Company:
How, Inc
Integrity Level:
MEDIUM
Description:
Free YouTube Downloader Setup Program
Exit code:
0
Version:
595.15.459.905
Modules
Images
c:\users\admin\appdata\roaming\wyval.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\system32\version.dll
3232"C:\Users\admin\AppData\Roaming\wyval.exe"C:\Users\admin\AppData\Roaming\wyval.exe
wyval.exe
User:
admin
Company:
How, Inc
Integrity Level:
MEDIUM
Description:
Free YouTube Downloader Setup Program
Exit code:
0
Version:
595.15.459.905
Modules
Images
c:\users\admin\appdata\roaming\wyval.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
3496"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
Total events
1 097
Read events
748
Write events
344
Delete events
5

Modification events

(PID) Process:(2900) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:b/
Value:
622F2000540B0000010000000000000000000000
(PID) Process:(2900) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
Off
(PID) Process:(2900) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
On
(PID) Process:(2900) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:WORDFiles
Value:
1324023838
(PID) Process:(2900) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1324023952
(PID) Process:(2900) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:ProductFiles
Value:
1324023953
(PID) Process:(2900) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word
Operation:writeName:MTTT
Value:
540B0000BEB1E5390738D50100000000
(PID) Process:(2900) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:(1
Value:
28312000540B000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(2900) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:delete valueName:(1
Value:
28312000540B000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:(2900) 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
2
Unknown types
2

Dropped files

PID
Process
Filename
Type
2900WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVR37E2.tmp.cvr
MD5:
SHA256:
2900WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:
SHA256:
3496EQNEDT32.EXEC:\Users\admin\AppData\Roaming\wyval.exeexecutable
MD5:
SHA256:
2900WINWORD.EXEC:\Users\admin\AppData\Local\Temp\~$_09_19 _11_42_44_gelenmail.doc.rtfpgc
MD5:
SHA256:
3168wyval.exeC:\Users\Public\bKqoAfTmyH.vbstext
MD5:
SHA256:
3232wyval.exeC:\Users\admin\AppData\Roaming\remcos\logs.dattext
MD5:
SHA256:
3168wyval.exeC:\Users\admin\wydad\vcasehdndbnseb.batexecutable
MD5:
SHA256:
3496EQNEDT32.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\JGRR2OYX\ca[1].exeexecutable
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
14
DNS requests
2
Threats
2

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3496
EQNEDT32.EXE
GET
200
167.114.113.137:80
http://ca.fakesemoca16.com/ca.exe
CA
executable
1.22 Mb
suspicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3496
EQNEDT32.EXE
167.114.113.137:80
ca.fakesemoca16.com
OVH SAS
CA
suspicious
3232
wyval.exe
178.239.21.3:8234
cazt01money.ddns.net
Telekomunikacije Republike Srpske akcionarsko drustvo Banja Luka
BA
malicious
178.239.21.3:8234
cazt01money.ddns.net
Telekomunikacije Republike Srpske akcionarsko drustvo Banja Luka
BA
malicious

DNS requests

Domain
IP
Reputation
ca.fakesemoca16.com
  • 167.114.113.137
suspicious
cazt01money.ddns.net
  • 178.239.21.3
malicious

Threats

PID
Process
Class
Message
3496
EQNEDT32.EXE
Potentially Bad Traffic
ET CURRENT_EVENTS Terse alphanumeric executable downloader high likelihood of being hostile
3496
EQNEDT32.EXE
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
No debug info