MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa849c65e375d11ab7f79978ac1fdf6b0b8b972286d4c2311cae4f0716c63e1b. 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: aa849c65e375d11ab7f79978ac1fdf6b0b8b972286d4c2311cae4f0716c63e1b
SHA3-384 hash: 86a69f393f9e8af66deb14719876988a51b34c723d0a373172b1cea5f6de67a34595e8a018a7be453082c919c50e25c5
SHA1 hash: f4ac97c63a391e065019f94413961bf2789a7ca0
MD5 hash: 85392423b0a7d2c9f2a201a2fd7ffdfa
humanhash: mike-oranges-mountain-avocado
File name:85392423b0a7d2c9f2a201a2fd7ffdfa.rtf
Download: download sample
File size:8'016 bytes
First seen:2020-11-04 09:25:03 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:EmyXupIO6RQ+5sCTVpBb0J2lpwGmr7/I73+:ENXuEr5sCTuslyGXO
TLSH 4EF13AA8AD59314AF597641D5A207CA5056FF0BB15E20AD033FCF2A32F26115C7B3848
Reporter abuse_ch
Tags:rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
96
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
Creating a file
Reading critical registry keys
Sending an HTTP GET request
Launching a file downloaded from the Internet
Creating a process from a recently created file
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/519986
Signature
Antivirus detection for URL or domain
Drops PE files to the user root directory
Machine Learning detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Program Location Process Starts
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa849c65e375d11ab7f79978ac1fdf6b0b8b972286d4c2311cae4f0716c63e1b/
Threat name:
Document-Word.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-11-03 21:40:01 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201104-sks41szh6s/
Behaviour
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
JavaScript code in executable
Loads dropped DLL
Uses the VBS compiler for execution
Blacklisted process makes network request
Executes dropped EXE
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 aa849c65e375d11ab7f79978ac1fdf6b0b8b972286d4c2311cae4f0716c63e1b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/784884/
  
Delivery method
Distributed via web download

Comments