Malicious PDF — malware analysis report

Static analysis result for SHA-256 10981dc5dc1aad1c…

MALICIOUS

PDF

45.7 KB Created: 2020-08-07 13:04:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59494c75e359dec29bc1a8429827391b SHA-1: d20d18e08515948e7283b5ce521e61c9cc935857 SHA-256: 10981dc5dc1aad1c585b274e3482bacf4fea6da62f05ec8a02b391bb2982fd20
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by an ML classifier and contains multiple links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=food+cost+control+formula+pdf'. The document appears to be part of an SEO link farm, attempting to lure users with a deceptive free download pretext. The presence of numerous links suggests an attempt to distribute further malicious content or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.ru/pify?keyword=food+cost+control+formula+pdf In PDF document text
    • http://files.canyonwindfineart.com/uploads/1/3/0/8/130874030/aa6e9.pdfIn PDF document text
    • http://files.flocrowcroft.co.uk/uploads/1/3/0/8/130814346/11e77c7.pdfIn PDF document text
    • http://files.pacengtech.com/uploads/1/3/0/7/130740483/3d87ca.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/1/0438/0036/3169/files/jigifajobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/bible_english_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3621/1357/files/46146000522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5399/8487/files/xaxuvenix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/catfish_cooley_tampon_story.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65294746239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2545/7575/files/canon_7d_mark_ii_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/abbreviation_for_thessalonians.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/jufawosagok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/97163071297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/kanibawanibazamagezejeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5067/2026/files/34375058467.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7477 5256 bytes
SHA-256: 62e4266092241ed8146a5dc480c91e60512def34de514ff84c84201c66c07019
font_01_sfnt_off00008641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8641 10516 bytes
SHA-256: e00632d48ece89d0587fdcd2e73dc7cf772acbc878ce596590213bc879b5f321

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