MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5. 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: 17


Intelligence 17 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5
SHA3-384 hash: 9835066c69edd3cafa90d84809f8e46336316615490d5eaffca0832ff1e68a00e28cb6a6c13f5e6879996dea740bfe48
SHA1 hash: a142f648ff828096a8892a5522a3b65f3c233674
MD5 hash: 55d34c0f47e1bd59cb5a79ac6cd7f0f0
humanhash: spaghetti-fix-hawaii-illinois
File name:RFQ# CF14521703_25903.xlsx
Download: download sample
Signature Formbook
Create hunting rule
File size:1'301'402 bytes
First seen:2025-05-23 11:46:08 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 24576:a0beaS527QBbkyB2BycuH27QuvvfpZZEQ+62DgzSRzG9OHOrEDthe1Dt:a0Ka627UYn027pvvfpTEH628zSVW2je/
TLSH T1A35533F98BF910A17FE99EA5644573F3BAFCE0D0968928C84054CE0E493EAF1129D5CD
TrID 61.2% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7)
31.5% (.ZIP) Open Packaging Conventions container (17500/1/4)
7.2% (.ZIP) ZIP compressed archive (4000/1)
Magika xlsx
Reporter lowmal3
Tags:CVE-2017-11882 FormBook xlsx

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
A11493474 bytesOlE10natiVe
A20 bytesRKtDDW9Hi5NxpW2QNP5NTOSZ

Intelligence

File Origin
# of uploads :
1
# of downloads :
4'455
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ# CF14521703_25903.xlsx
Verdict:
No threats detected
Analysis date:
2025-05-23 11:49:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3c99e91a-c140-4490-964f-d82f3b1d2495

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Malware.XML.Autoload-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadMacro.BadOleNatEquat.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.EQAndMisCasedOleNativeWasTheCaseThatTheyGaveMe.20200215.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.EQEditorFBShellzLetMeBlowYourMind.20210218.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683061414912a6b9dd4c5d8d
Tags:
autoit emotet spam
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects
Link:
https://app.docguard.net/b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit embedequation exploit fingerprint keylogger packed shellcode
Link:
https://www.filescan.io/uploads/6830601f171e01f9592b69b1/reports/680e0632-18d1-4cee-a793-1b6ccc2d32b6/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5
Label:
Malicious
Suspicious Score:
9.8/10
Score Malicious:
99%
Score Benign:
1%
Link:
https://www.malware.ai/gui/files/?id=b27e008b-8cec-4a37-b1b2-2d361b30223f
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5
Details
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1697705
Signature
Antivirus / Scanner detection for submitted sample
Document exploit detected (process start blacklist hit)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Link:
https://malprob.io/report/b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2025-05-23 10:52:33 UTC
File Type:
Document
Extracted files:
16
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wpivj4uoc5uok6z27ccxeduxt5i7zxk2hvmaafe7fbed43fdrhsq._file
Verdict:
malicious
Label(s):
autoit
Create hunting rule
unc_loader_036
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/250523-nxjdcsdj9x/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Verdict:
Suspicious
Tags:
exploit
YARA:
INDICATOR_OLE_EXPLOIT_CVE_2017_11882_1
Link:
https://app.threat.zone/submission/82eff501-d771-450f-b259-7a8c6318e9f6
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b3d154f28e17/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3d154f28e1768e57b3af885720e979f51fcdd5a3d5800149f28483e6ca389e5

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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

  
Delivery method
Other

Comments