Malicious PDF — malware analysis report

Static analysis result for SHA-256 274c1c0b09a370fb…

MALICIOUS

PDF

37.9 KB Created: 2020-08-12 09:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e912ff477a6a7b287f178d4c80bb59c5 SHA-1: 37f618b8f072d76b1899815f533f1b73a759cd15 SHA-256: 274c1c0b09a370fb1ce8af25ab734011e4f5407d0a9754e83832768f7012b380
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.003 Phishing: Phishing Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=fusionner+pdf+ensemble'. This URL is presented within the document body, disguised as a tool for merging PDFs. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation or to host further malicious content. The ML classifier strongly flags this PDF as malicious.

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=fusionner+pdf+ensemble In PDF document text
    • http://files.texler.org/uploads/1/3/2/6/132681392/43451e289b9b4.pdfIn PDF document text
    • http://files.dockconnectionllc.com/uploads/1/3/0/7/130740374/ridanulobub.pdfIn PDF document text
    • http://files.ecocleancare.com/uploads/1/3/1/6/131606813/manotedexabopaj.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/1/0437/4393/6673/files/79853883630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6569/9478/files/super_mario_run_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/72405931034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1872/1192/files/mapa_do_brasil_estados.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7617/3472/files/fujabaden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4585/5137/files/vurijawerorusutami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/97948022047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/56776008633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/14573977009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7592/8218/files/elephant_plush_bubble_gum_simulator.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_off00005727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5727 5072 bytes
SHA-256: 6eb3644eacbe45440cf74fde2771b6c9e85bbcc7ac253f1c7602c075a9b2762a
font_01_sfnt_off0000684a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684A 10148 bytes
SHA-256: 0f0857e3c35152aad164818814b058d2651f60832784cf2f1e76614b3e92de9d

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