MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04fffe52f93084dc3da76743e96951e7c09a872b4cbed9e4eff6d41851416d50. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments 1

SHA256 hash: 04fffe52f93084dc3da76743e96951e7c09a872b4cbed9e4eff6d41851416d50
SHA3-384 hash: 10eca04830db82207cca493b3e9f574339bdd3c7acb42dd36e91184cd84806ebdc08ded057b8658b8240db1b610fbb11
SHA1 hash: 78cf832b7d8b741296c599748fddd2bd075335cb
MD5 hash: bcb9dddc3a3c81e74a45cd2d2ddf7b5f
humanhash: single-mexico-echo-wisconsin
File name:bcb9dddc3a3c81e74a45cd2d2ddf7b5f
Download: download sample
File size:5'705'527 bytes
First seen:2023-03-18 01:32:53 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 24576:xWPxYwehenVW8j4odZuxNjXdoKr/uoS7Q4lCp6s283rXYFBPTr8ajs9QRlF0IxuE:0
TLSH T1C34668F0AD01D4C1F5BE5B6AF2FD3A48A1343217EBC94A4A00E5E5651EF6A11F90ECC9
Reporter zbetcheckin
Tags:rtf

Intelligence


File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bcb9dddc3a3c81e74a45cd2d2ddf7b5f
Verdict:
Malicious activity
Analysis date:
2023-03-18 01:34:32 UTC
Tags:
exploit cve-2017-11882

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a process with a hidden window
Possible injection to a system process
Sending a custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Using obfuscated Powershell scripts
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE_2017_11882 embedequation exploit exploit shellcode
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
96 / 100
Signature
Antivirus detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Shellcode detected
Sigma detected: File Dropped By EQNEDT32EXE
Suspicious powershell command line found
Very long command line found
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Threat name:
Document-RTF.Exploit.Minerva
Status:
Malicious
First seen:
2023-03-18 00:27:22 UTC
File Type:
Document
Extracted files:
3
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Blocklisted 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:INDICATOR_RTF_EXPLOIT_CVE_2017_11882_1
Author:ditekSHen
Description:Detects RTF documents potentially exploiting CVE-2017-11882
Rule name:INDICATOR_RTF_MalVer_Objects
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

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 04fffe52f93084dc3da76743e96951e7c09a872b4cbed9e4eff6d41851416d50

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-03-18 01:32:56 UTC

url : hxxp://195.178.120.24/33333.doc