Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f084b99d7e253c3…

MALICIOUS

PDF

32.0 KB Created: 2020-10-26 14:00:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5e5c033464a4e9532c59c84a05b8af40 SHA-1: 206f9c818a389528379451a3d4eca384b82d6674 SHA-256: 8f084b99d7e253c30950b74a686e8c5415326a797d611a8711d1650fec35a4a8
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains heuristics indicating it is a malicious redirector, specifically linking to a URL associated with SEO spam and phishing lures. The document body, though heavily obfuscated, contains text related to 'Google maps offline android' and the malicious URL, suggesting an attempt to trick users into clicking the link. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • 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.
  • 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://ttraff.ru/123?keyword=google+maps+offline+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4415045/normal_5f94e5f18324f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384318/normal_5f908fda012d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370737/normal_5f8a4df195e5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404980/normal_5f94680333619.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/cable_gland_selection_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/wibusudoj.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/22768578830.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/transporte_de_auxinas.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/92468426639.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/55538077930.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/math_games_for_adults.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a9a9ccf-6bfc-466f-be7b-696e65fca1dd/32068480390.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11ac9d03-abd2-4b68-b66d-fc7e7157f201/67771955224.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f41a3d2-8c57-472e-92c6-b32310717561/53769276150.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51c0f113-c8d6-4ff9-841d-e4f30c4e7935/kumegetalimofel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7cd9d21-b700-4757-b64d-502926f4a53e/3221932852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8632e754-9585-4981-926d-a3501818206c/15869975916.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92d8fcc0-698d-4f9b-bf47-0722f1e42377/22545572041.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/banting_breakfast_recipes.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/wofise.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A29 5392 bytes
SHA-256: 7912f13a79f76766b694bfd424df3ddba2b83b503b3dd8ae751f9e48bb401639