MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 29be6d975c70bc49b41888e05e7c2bf4845683f4873c632ade39913e14b04796. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 29be6d975c70bc49b41888e05e7c2bf4845683f4873c632ade39913e14b04796
SHA3-384 hash: 6d045cae77d29b155bffbb8e62debbaa3b2256f6631b9fc997925e2c890e7cd27634fbb953baf43769bd436aeee93aaf
SHA1 hash: aa1f95dbebb608af31e8fd779ed9a1693ce98bd4
MD5 hash: 8bfb6ca696d156f81e325f131ec1f7da
humanhash: purple-echo-grey-eleven
File name:8bfb6ca696d156f81e325f131ec1f7da.rtf
Download: download sample
Signature Formbook
Create hunting rule
File size:37'821 bytes
First seen:2023-07-14 06:47:22 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:MFx0XaIsnPRIa4fwJMfjsjyTvPZrLKt2PkYlR5zVY2LXNS:Mf0Xvx3EMfTjxrLKto5vBlbNS
TLSH T1C303915AD78F0268CF511276271B0E89AABDB22EF3505572346C937433DDC3E06665BC
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:
n/a
ID:
1
File name:
8bfb6ca696d156f81e325f131ec1f7da.rtf
Verdict:
Malicious activity
Analysis date:
2023-07-14 07:00:18 UTC
Tags:
exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/eadd3c0b-37e4-4f7f-8cc6-92c66d7b8d43

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

TwinWave.EvilDoc.PKILLLureTextKingOfWishfulThinking.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
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/29be6d975c70bc49b41888e05e7c2bf4845683f4873c632ade39913e14b04796/results/dashboard
Behaviour
BlacklistAPI detected
Gathering data
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/29be6d975c70bc49b41888e05e7c2bf4845683f4873c632ade39913e14b04796
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1273055
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/29be6d975c70bc49b41888e05e7c2bf4845683f4873c632ade39913e14b04796/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-07-14 06:48:04 UTC
File Type:
Document
Extracted files:
3
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fg7g3f24oc6etnayrdqf47bl6scfna7uq46ggkw6hgit4ffqi6la._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ge83 rat spyware stealer trojan
Link:
https://tria.ge/reports/230714-hkr7vadc9y/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Gathers network information
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
Drops file in Windows 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/29be6d975c70/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 29be6d975c70bc49b41888e05e7c2bf4845683f4873c632ade39913e14b04796

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2680642/
  
Delivery method
Distributed via web download

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