MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dde049f4dcc839ba3db45edc58d80e860ae4375f8669d662ffd54a2dd8881d82. 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


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dde049f4dcc839ba3db45edc58d80e860ae4375f8669d662ffd54a2dd8881d82
SHA3-384 hash: 45a6db35d1c080d91d6d8a42deb6d1823e6713b2c8bd6e453da56a2031ef8498dc3bfce88fd0b2302177dbb374eef925
SHA1 hash: 97b2a27317339301e0a44241311cf2ee2aac2c56
MD5 hash: 70e05259e807ed0a8bb8848a6247223e
humanhash: blossom-alaska-texas-mango
File name:70e05259e807ed0a8bb8848a6247223e.rtf
Download: download sample
Signature Formbook
Create hunting rule
File size:43'722 bytes
First seen:2023-07-10 12:11:46 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:8Fx0XaIsnPRIa4fwJMlZ3qxbtTw+nN09yAC2c:8f0Xvx3EMnwJTw+nnf2c
TLSH T11613F65AE38F02A58F4112B7531B1E899ABDB63EB3515471386C833433EDC3D46666BC
TrID 71.4% (.PZ2) Poser pose (12500/1/4)
28.5% (.RTF) Rich Text Format (5000/1)
Reporter abuse_ch
Tags:CVE-2017-11882 FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
111
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
70e05259e807ed0a8bb8848a6247223e.rtf
Verdict:
Malicious activity
Analysis date:
2023-07-10 12:19:01 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader
Link:
https://app.any.run/tasks/c2d39964-3481-4683-8046-f9902c856d04

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28669.RtfHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.PKILLLureTextKingOfWishfulThinking.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/dde049f4dcc839ba3db45edc58d80e860ae4375f8669d662ffd54a2dd8881d82/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/64abf59467f70195b44342b0/reports/ba3d4b76-2742-45be-a2d6-921781c3c3de/overview
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/dde049f4dcc839ba3db45edc58d80e860ae4375f8669d662ffd54a2dd8881d82
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1270077
Behaviour
Behavior Graph:
n/a
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dde049f4dcc839ba3db45edc58d80e860ae4375f8669d662ffd54a2dd8881d82/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-07-10 12:12:05 UTC
File Type:
Document
Extracted files:
3
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3xqet5g4za43upnul3ofrwaoqyfoin27qzu5myx72vfc3weidwba._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:4hc5 rat spyware stealer trojan
Link:
https://tria.ge/reports/230710-pc6htsba5y/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
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
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Formbook payload
Formbook
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dde049f4dcc8/report/overview.html
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_MalVer_Objects
Create hunting rule
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
Create hunting rule
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

Formbook

Rich Text Format (RTF) rtf dde049f4dcc839ba3db45edc58d80e860ae4375f8669d662ffd54a2dd8881d82

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2677406/
  
Delivery method
Distributed via web download

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