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File name:

main.file.rtf

Full analysis: https://app.any.run/tasks/3abfc241-3ab0-4016-acbb-040b44199d52
Verdict: Malicious activity
Threats:

Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email.

Malware Trends Tracker     >>>
Analysis date: December 09, 2019, 03:19:03
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
ole-embedded
exploit
cve-2017-11882
trojan
sidewinder
Indicators:
MIME: text/rtf
File info: Rich Text Format data, unknown version
MD5:

3EE30A5CAC2BEF034767E159865683DF

SHA1:

C29A1FD54F9F961211E9CD987F90BD8EB0932E45

SHA256:

F08CCC040C8D8DB60F30A6D1026AA6523E97C6CF52B1B30F083A830A0A65A3A9

SSDEEP:

6144:GaQeeOt/MdPe8smHwqTs643WTFbDiwEJCSJZg6o06Syhpn:GBNPe8sCwL6FxajTLg6n6Syht

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

      • rekeywiz.exe (PID: 2212)
      • rekeywiz.exe (PID: 3672)

    • Loads dropped or rewritten executable

      • rekeywiz.exe (PID: 2212)

    • Connects to CnC server

      • rekeywiz.exe (PID: 2212)

    • Actions looks like stealing of personal data

      • rekeywiz.exe (PID: 2212)

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

      • EQNEDT32.EXE (PID: 3592)

    • Changes the autorun value in the registry

      • EQNEDT32.EXE (PID: 3592)

  • SUSPICIOUS

    • Executed via COM

      • EQNEDT32.EXE (PID: 3592)

    • Creates files in the program directory

      • rekeywiz.exe (PID: 2212)
      • EQNEDT32.EXE (PID: 3592)

    • Executable content was dropped or overwritten

      • EQNEDT32.EXE (PID: 3592)

    • Reads internet explorer settings

      • EQNEDT32.EXE (PID: 3592)

  • INFO

    • Creates files in the user directory

      • WINWORD.EXE (PID: 2864)

    • Manual execution by user

      • cmd.exe (PID: 3816)

    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 2864)
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.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
41
Monitored processes
5
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 rekeywiz.exe no specs cmd.exe no specs rekeywiz.exe

Process information

PID
CMD
Path
Indicators
Parent process
2864"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\main.file.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
3592"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
3672"C:\ProgramData\DnsFiles\rekeywiz.exe" C:\ProgramData\DnsFiles\rekeywiz.exe—EQNEDT32.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
EFS REKEY wizard
Exit code:
3221225794
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\programdata\dnsfiles\rekeywiz.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
3816"C:\Windows\system32\cmd.exe" C:\Windows\system32\cmd.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
3221225786
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\usp10.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
2212C:\ProgramData\DnsFiles\rekeywiz.exeC:\ProgramData\DnsFiles\rekeywiz.exe
cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
EFS REKEY wizard
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\programdata\dnsfiles\rekeywiz.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
Total events
2 136
Read events
1 312
Write events
630
Delete events
194

Modification events

(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:= c
Value:
3D206300300B0000010000000000000000000000
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1041
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1046
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1036
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1031
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1040
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1049
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:3082
Value:
Off
(PID) Process:(2864) WINWORD.EXEKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:writeName:WORDFiles
Value:
1334378558
Executable files
2
Suspicious files
4
Text files
4
Unknown types
2

Dropped files

PID
Process
Filename
Type
2864WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVRE03D.tmp.cvr —
MD5:—
SHA256:—
2212rekeywiz.exeC:\Users\admin\AppData\Local\Temp\tmp8CF3.tmp —
MD5:—
SHA256:—
2212rekeywiz.exeC:\Users\admin\AppData\Local\Temp\tmp9B1D.tmp —
MD5:—
SHA256:—
2212rekeywiz.exeC:\Users\admin\AppData\Roaming\DnsDat\dxsgmk5e.2iu.flc —
MD5:—
SHA256:—
2212rekeywiz.exeC:\Users\admin\AppData\Local\Temp\tmpE419.tmp —
MD5:—
SHA256:—
3592EQNEDT32.EXEC:\ProgramData\DnsFiles\Q0fiwXU.tmpbinary
MD5:D52AC4283326002FD1B886419FFBC95A
SHA256:D4C2449F66B693B198870251863ED1D81EF50761FF961E7E4B77BB592585AD07
2212rekeywiz.exeC:\Users\admin\AppData\Roaming\DnsDat\3dyci33p.ahi.flstext
MD5:5E52B4FD194B1AAE5DE8B49F93FB1743
SHA256:5B456CD413F142126E01DA501568D3B955EEA67A073C3D8E9A647AF3526DEC49
2212rekeywiz.exeC:\Users\admin\AppData\Roaming\DnsDat\iybz5vz5.kih.siftext
MD5:CC83823F2F6DB4479AFDBD4415DB6E9D
SHA256:73943B798422EBAC2C5327D405F8168DF2C947D430A6C9A5219C614423DCF0DE
2864WINWORD.EXEC:\Users\admin\AppData\Local\Temp\~$in.file.rtfpgc
MD5:9AFC96DD775E67BC1C6A73BA21C774EB
SHA256:70BD86B6018035A418B328428F47E0A5B570B4F23A315E84C616EFEEF789B2FA
2864WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:7048C24C2969874AC235C4BC1785159A
SHA256:E700ED60C2370530A7695D9DFC7CCEDFBF16D0915F1C945ABCEB3ECC1D325A24
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
5
DNS requests
3
Threats
1

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2212
rekeywiz.exe
185.225.17.239:443
reawk.net
—
—
malicious

DNS requests

Domain
IP
Reputation
reawk.net
  • 185.225.17.239
malicious

Threats

PID
Process
Class
Message
—
—
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (Sidewinder APT CnC)
No debug info
Interactive malware hunting service ANY.RUN
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Reports
main.file.rtf