MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fcd797192ecab39c41ba35aa62682d177aa0b8d355065bcd13e9a150a3098fb. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Threat unknown


Vendor detections: 5


Intelligence 5 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3fcd797192ecab39c41ba35aa62682d177aa0b8d355065bcd13e9a150a3098fb
SHA3-384 hash: 44df89716fba7c14049e24d46a90486d0cab53c450cd972df563fd319ce17620aa011683b9e69cfcc674edd7a55ed909
SHA1 hash: 5281d1d2317c3721f4a0dc7942ff79524efbe885
MD5 hash: 91838b9d14e012553a323ca4e9261547
humanhash: black-william-uniform-echo
File name:91838b9d14e012553a323ca4e9261547.rtf
Download: download sample
File size:8'494 bytes
First seen:2020-11-05 15:09:59 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:IDoMJwKQofFeSN7I3asUdPVZfXoDOyWxUxytp1Tt3qlLQvQusG:iv0i83asUdPQC2x2p3qlLaFsG
TLSH DF028DF48B087365E92124DA86127CB9972EB4B636D29A8075DDFE721F731218F3188D
Reporter abuse_ch
Tags:rtf

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/521630
Signature
Antivirus detection for dropped file
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3fcd797192ecab39c41ba35aa62682d177aa0b8d355065bcd13e9a150a3098fb/
Threat name:
Win32.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-10-29 15:52:00 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201105-vgdhsqsqz2/
Behaviour
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Enumerates system info in registry
Blacklisted process makes network request
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Rich Text Format (RTF) rtf 3fcd797192ecab39c41ba35aa62682d177aa0b8d355065bcd13e9a150a3098fb

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/789537/
  
Delivery method
Distributed via web download

Comments