Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f986b4fec15ee3…

MALICIOUS

PDF

323.9 KB Created: 2021-12-31 07:47:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: e4246a654a877811542ef7dca5f069b9 SHA-1: f42a23f82b04056655e7a947db65e7d092a0985f SHA-256: f2f986b4fec15ee3bf1f724b44f4b36d8b11d2ab0441e8a7a8b3136ace9bd7dd
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded JavaScript and external URIs that redirect to other PDF files, indicating a phishing lure for free games. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection or download of further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7514

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://tingyi-bnb.com/CKEdit/upload/files/dudijojukide.pdf In PDF document text
    • http://satyamtracparts.com/userfiles/file/jafivak.pdfIn PDF document text
    • https://network-italia.it/file/jizutixuzitesivukubosonu.pdfIn PDF document text
    • http://greenpeace.aboutgiving.net/sites/default/files/editor/file/2324884146.pdfIn PDF document text
    • http://www.majbrno.cz/uploads/files/bifosezujemudululel.pdfIn PDF document text
    • http://systempro.kr/userData/board/file/minugerezozaseboxitiloter.pdfIn PDF document text
    • https://cogi.sed-hut.pl///files//editor/file/lajabasebimeripabepud.pdfIn PDF document text
    • http://harchovyk.com/userfiles/file/zadevuzumumewitumolinut.pdfIn PDF document text
    • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/80138919890.pdfIn PDF document text
    • http://zenithmetals.com/files/kebidimusurabetojasulolo.pdfIn PDF document text
    • http://lhwytsg.com/js/upload/39412280826.pdfIn PDF document text
    • http://bsa-billiard.by/images_from_html_editor/file/77511814899.pdfIn PDF document text
    • http://diamant-x.sk/UserFiles/file/46736387718.pdfIn PDF document text
    • https://gmt-tw.com/app/webroot/userfiles/files/foxademimobagu.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a4b205cbb84---5676583826.pdfIn PDF document text
    • https://evergreencans.com/userfiles/file/56065919748.pdfIn PDF document text
    • http://casinodanmarkjackpot.dk/userfiles/file/20321325205.pdfIn PDF document text
    • https://abcoegypt.com/userfiles/files/62279143044.pdfIn PDF document text
    • https://kfmaccounting.com/webroot/img/content/files/64856612671.pdfIn PDF document text
    • http://aircond.md/upload_fck/file/bixudulowilofafupaj.pdfIn PDF document text
    • http://diysmart.net/userfiles/file/23978997411.pdfIn PDF document text
    • https://hophamthaibinh.com/upload/files/3741966239.pdfIn PDF document text
    • http://harringtonassociateslaw.com/Test/JabzMedicalBillingService/userfiles/file/76439748473.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/896FEnmJZlk/uplcv?utm_term=halo+games+free++for+pcPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A643 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004bce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BCE2 17080 bytes
SHA-256: 0241853277d319e4785263e96fbce6634299e1e0e62345ca7867e4a1985bb905
font_02_sfnt_off0004e8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E8F4 10520 bytes
SHA-256: 4932a13d4501c27a4ff13e78394b47a1aa393d55df6f066c8ad28efa0c969f36