Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d36a68909076bbb…

MALICIOUS

PDF

32.2 KB Created: 2020-08-16 21:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7804ba5b08365c9190e5f6d8bd62f834 SHA-1: 10d344649282efcc382d4db91f93ede07639b41b SHA-256: 4d36a68909076bbbcec261b03a5e03538abe5c535214b714e46b2007f9fcd9d7
202 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a download button. The link directs to 'https://ttraff.com/pify?keyword=videohive+music+free', which is a known malicious redirector. The document also contains a large number of external PDF links, many hosted on Shopify, likely for SEO manipulation or to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=videohive+music+free In PDF document text
    • http://files.noshushingallowed.com/uploads/1/3/1/4/131437516/tujufumubegelar_fixeki_rorofula.pdfIn PDF document text
    • http://files.stephanierodemann.com/uploads/1/3/0/8/130874050/nenefuki-vatonuxonoruna.pdfIn PDF document text
    • http://files.wcpreschoolva.com/uploads/1/3/1/0/131070351/dutaxobizidifi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/fapokupuwonaxipifabuzikep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/zovowigibakekiwawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/nowixixivatiriditowolub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/wuxowekox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3356/7125/files/auriculoterapia_efectos_secundarios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/hitler_s_rise_to_power_timeline_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8053/8529/files/investments_bodie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5409/4753/files/application_of_laser_in_medicine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5186/4484/files/how_to_open_steam_console.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/bozuxufuvupimonaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8664/1304/files/xufusexowupojosezajefoj.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 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000421f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x421F 5044 bytes
SHA-256: f08893e68d704f05168af42bca11a67068bb079af13e381f2113599ef9f81eaf
font_01_sfnt_off0000532d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x532D 9664 bytes
SHA-256: dbcd00884f9b29086a8e9dd896dfb030a26f0e07b0428ceda7894797b741b16d

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