Malicious PDF — malware analysis report

Static analysis result for SHA-256 a686846a625e4380…

MALICIOUS

PDF

203.5 KB Created: 2020-08-12 15:29:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93b3b6dc69c26506c8e2e070d71c3405 SHA-1: 6fe0aa3407e4014ff4c2e5f25b4721b5786e27b5 SHA-256: a686846a625e4380f6a53c197a93bfc88bcf73b450024b916f0734a329042bd5
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=aparato+reproductor+masculino+pdf+histologia'. This URL is embedded within the document body, suggesting an attempt to redirect the user to a malicious site. The presence of this malicious link indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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.
  • 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 https://ttraff.cc/pify?keyword=aparato+reproductor+masculino+pdf+histologia In PDF document text
    • http://files.loopsofgray.com/uploads/1/3/1/4/131437157/fizojutisozel_xijuwakunuror.pdfIn PDF document text
    • http://files.laurennicoleanderson.com/uploads/1/3/1/4/131406510/jixeledetowigu_majafuditulejum.pdfIn PDF document text
    • http://files.johnnyomusic.net/uploads/1/3/1/3/131398541/f8a3c3022.pdfIn PDF document text
    • http://files.chennaishiayouth.com/uploads/1/3/1/4/131438046/jupopamabibobakow.pdfIn PDF document text
    • http://files.davenportband.com/uploads/1/3/2/7/132712129/2725650.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/rent_stabilization_lease_rider.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/juzekikivaridiwatasezide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/schematic_report_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rowogumidakedodovejizana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6400/7583/files/24499358022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7007/6566/files/anatomia_y_fisiologia_del_cuello_uterino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/koremofonomudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2951/0814/files/50397490758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakoximowukod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9394/0641/files/32300606152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/88308061728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D600 5440 bytes
SHA-256: a4268e793168f9d059777c6f5786dd5c12be42ac7ad34524347eaf2b318111fa
font_01_sfnt_off0002e84b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E84B 12804 bytes
SHA-256: 4839be59c86e4debe242c6d79c8f22a1917e1117b99771ff3a1ab0242aa10fe7
font_02_sfnt_off0003117c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3117C 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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