Malicious PDF — malware analysis report

Static analysis result for SHA-256 de18bc485aef170b…

MALICIOUS

PDF

41.0 KB Created: 2020-08-10 16:47:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0dfa2c1272fc31886e01dbdaa82789b6 SHA-1: 87f8738d383dda2d723fe721a0fdafbc3630a3c4 SHA-256: de18bc485aef170b528b04fdbca1847ea84cdf30e775d2b76ae272495c390fe4
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on Shopify. The primary malicious link, 'https://ttraff.ru/pify?keyword=capteur+de+position+papillon+pdf', is identified as a redirector to malicious infrastructure. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is designed to lead users to harmful content.

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=capteur+de+position+papillon+pdf In PDF document text
    • http://wajativ.angeecasson.com/uploads/1/3/2/6/132680813/ead6a36571d.pdfIn PDF document text
    • http://files.fiercefabulousflawless.com/uploads/1/3/1/4/131437532/4732480.pdfIn PDF document text
    • http://tekavijim.vancouverlocalmovers.com/uploads/1/3/1/1/131164250/c24f52d7353.pdfIn PDF document text
    • http://losafe.helenaaves.com/uploads/1/3/1/4/131437657/petufokemugazebar.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/1/0430/5590/6967/files/a_team_ed_sheeran_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5681/6540/files/jomiromo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8431/6823/files/john_dee_snow_central.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1796/0604/files/jigopumurafowivat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/kobolot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1167/0179/files/best_tinkers_armor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/60131419898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mipubafuminidumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/19566112035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3465/4358/files/can_t_stop_the_feeling_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9030/files/applied_calculus_hughes_hallett_4th_edition.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 2

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_off000061c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C9 4940 bytes
SHA-256: a44916bc635b9e4086c58fc72a74e80c48fc3e902cbc3cc4e92f1caa55d16b14
font_01_sfnt_off000072a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A7 11120 bytes
SHA-256: db6167cc503cc86898943b731d79212ab0f38b8d24760366ba5dc117635b89da

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