File name:

main.file.rtf

Full analysis: https://app.any.run/tasks/3abfc241-3ab0-4016-acbb-040b44199d52
Verdict: Malicious activity
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: 3672)
      • rekeywiz.exe (PID: 2212)
    • Loads dropped or rewritten executable

      • 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)
    • Connects to CnC server

      • rekeywiz.exe (PID: 2212)
    • Actions looks like stealing of personal data

      • rekeywiz.exe (PID: 2212)
  • SUSPICIOUS

    • Reads internet explorer settings

      • EQNEDT32.EXE (PID: 3592)
    • Creates files in the program directory

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

      • EQNEDT32.EXE (PID: 3592)
    • Executable content was dropped or overwritten

      • EQNEDT32.EXE (PID: 3592)
  • INFO

    • Manual execution by user

      • cmd.exe (PID: 3816)
    • Creates files in the user directory

      • WINWORD.EXE (PID: 2864)
    • 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.EXEexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Exit code:
0
Version:
14.0.6024.1000
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
3672"C:\ProgramData\DnsFiles\rekeywiz.exe" C:\ProgramData\DnsFiles\rekeywiz.exeEQNEDT32.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)
3816"C:\Windows\system32\cmd.exe" C:\Windows\system32\cmd.exeexplorer.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)
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)
Total events
2 136
Read events
1 312
Write events
0
Delete events
0

Modification events

No data
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:
2212rekeywiz.exeC:\Users\admin\AppData\Roaming\DnsDat\3dyci33p.ahi.flstext
MD5:5E52B4FD194B1AAE5DE8B49F93FB1743
SHA256:5B456CD413F142126E01DA501568D3B955EEA67A073C3D8E9A647AF3526DEC49
3592EQNEDT32.EXEC:\ProgramData\DnsFiles\rekeywiz.exe.configxml
MD5:70ECD7E0BDF8F8D01F7F58BE6525E079
SHA256:B1FA0771099733E7A9FA296ACC7518C1E36C4E473B59EEC7ACBFB89D80252757
2864WINWORD.EXEC:\Users\admin\AppData\Local\Temp\1.atext
MD5:4513F65BDF6976E93AA31B7A37DBB8B6
SHA256:054A029B378B8BBF5EA3F814A737E9C3B43E124995D05D7DAC45A87502BF2F62
2864WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:7048C24C2969874AC235C4BC1785159A
SHA256:E700ED60C2370530A7695D9DFC7CCEDFBF16D0915F1C945ABCEB3ECC1D325A24
2864WINWORD.EXEC:\Users\admin\AppData\Local\Temp\~$in.file.rtfpgc
MD5:9AFC96DD775E67BC1C6A73BA21C774EB
SHA256:70BD86B6018035A418B328428F47E0A5B570B4F23A315E84C616EFEEF789B2FA
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
2212
rekeywiz.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (Sidewinder APT CnC)
No debug info