MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f443d54ed21c034b61c6e71a4f4705f33684d36b5784aa997461a88e99dc5202. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f443d54ed21c034b61c6e71a4f4705f33684d36b5784aa997461a88e99dc5202
SHA3-384 hash: f27a498b1107cfb487ed584111e76131d2b5d745878179544c3e2dda4872b34d52b60040caa896361dc0b1d06b777a03
SHA1 hash: f5bd4fba468d7119f3dda5d4e5c9d6b2f3f9ce4b
MD5 hash: 067208a716e65c2c5018064d00078ac5
humanhash: oxygen-one-vegan-chicken
File name:SecuriteInfo.com.Exploit.Rtf.Obfuscated.32.32608.12463
Download: download sample
Signature Formbook
Create hunting rule
File size:1'101'274 bytes
First seen:2022-08-31 13:37:06 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 1536:4ch6dtRGWbCtpl5kmrJ//RFxXxBpzB9TBtiBqK8Qf6YXkY0kY0kY92i3e+6fw5bG:QnG
TLSH T144352121B1767DC7532202B1828F9D4AA3287E47F35A1E94E01EEEF82DD8575A341F4E
Reporter SecuriteInfoCom
Tags:FormBook rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
208
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28095.Rtf.Noaccess.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Exploit.Rtf.Obfuscated.32.32608.12463.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR._C_DMC.210820.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR.ETANOSREPMI.210820.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR.STMGMNIW.210820.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR.SSECORP_23NIW.210820.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR.GNIDOCNE_TXET_METSYS.210820.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Changing the Zone.Identifier stream
Searching for synchronization primitives
Launching a process
Creating a window
Creating a process with a hidden window
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Running batch commands
Creating a file
Сreating synchronization primitives
Bypassing of proactive protection methods using Windows Management Instrumentation (WMI)
Running batch commands by exploiting the app vulnerability
Creating a process from a recently created file
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/f443d54ed21c034b61c6e71a4f4705f33684d36b5784aa997461a88e99dc5202/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd cmd.exe cscript embedequation exploit exploit
Link:
https://www.filescan.io/uploads/630f6451a7450371f691a518/reports/0c1886b6-9a1e-4bf7-bf3e-beced9f5f912/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1061734
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f443d54ed21c034b61c6e71a4f4705f33684d36b5784aa997461a88e99dc5202/
Threat name:
Script.Exploit.Minerva
Create hunting rule
Status:
Malicious
First seen:
2022-08-31 09:32:28 UTC
File Type:
Document
Extracted files:
11
AV detection:
9 of 26 (34.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6rb5ktwsdqbuwyog44ne6ryf6m3iju3lk6ckvglumgui5go4kiba._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/220831-qxc8fsfabl/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
NTFS ADS
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
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Blocklisted process makes network request
Process spawned unexpected child process
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f443d54ed21c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f443d54ed21c034b61c6e71a4f4705f33684d36b5784aa997461a88e99dc5202

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.

File information

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

Comments