Malicious PDF — malware analysis report

Static analysis result for SHA-256 439a47fb53707bb1…

MALICIOUS

PDF

40.8 KB Created: 2021-02-24 21:56:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b802ec12352627b7628810bed4bc2c58 SHA-1: a0e71ef00d207e202665e36da1d3733fd97b37e9 SHA-256: 439a47fb53707bb1ef7b830635a5e63344348e9111bed572c0632291bec7789c
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document is designed as a phishing lure, presenting itself as an image to trick users into clicking a link. The embedded link, https://yafferge.ru/award?keyword=quais+os+5+p+do+marketing, is identified as a malicious redirector, likely leading to a phishing page. The document's structure and the presence of a malicious URL strongly indicate a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9454

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 https://yafferge.ru/award?keyword=quais+os+5+p+do+marketing In PDF document text
    • https://kufurana.weebly.com/uploads/1/3/1/4/131482954/jewazesugusolo.pdfIn PDF document text
    • http://topshops.website/26124879445j1q0q.pdfIn PDF document text
    • https://tibijipobarak.weebly.com/uploads/1/3/4/4/134493900/gizigodisidotiwa.pdfIn PDF document text
    • http://ing-cliente.com/talking_as_fast_as_i_can_photospiqsw.pdfIn PDF document text
    • http://getdouche.xyz/heat_capacity_of_metals_lab_reportrm6u0.pdfIn PDF document text
    • https://demizuxikeb.weebly.com/uploads/1/3/4/0/134000208/setixidosev-zegepaja-genofaset.pdfIn PDF document text
    • https://surinulijo.weebly.com/uploads/1/3/4/6/134648677/tajewevoxomop.pdfIn PDF document text
    • http://parkji5x.xyz/housefull_2_full_movie_free_downloadlbhfr.pdfIn PDF document text
    • https://lamamamim.weebly.com/uploads/1/3/1/6/131606140/67e52c1b724.pdfIn PDF document text
    • https://depagolal.weebly.com/uploads/1/3/0/8/130813973/2353039.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/yavapai_county_visitation_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/91321851976.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/bewugubo.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/zipagumatofijiwo.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/adjective_of_quantity_and_number_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/budesonide_formoterol_inhalation_powder.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/tixibogo.pdfIn PDF document text