Malicious PDF — malware analysis report

Static analysis result for SHA-256 68682baa7f8389a9…

MALICIOUS

PDF

40.5 KB Created: 2020-08-04 17:59:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf67a5eb49bdffbd375130c5ec97751a SHA-1: 50653e1bd18a2cfaed549023cb2944cda521dc44 SHA-256: 68682baa7f8389a91ffbdf30bbf727b38a6435290176898ff71b1d4ac3676a31
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of an SEO link farm. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=electric+actuators+pdf+nptel', which is also present in the document body. This suggests a phishing or scam attempt disguised as a document download.

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.cc/pify?keyword=electric+actuators+pdf+nptel In PDF document text
    • http://japiwi.asturiasmaldonadofoundation.org/uploads/1/3/1/3/131384401/nemonivaxamu_belamaka.pdfIn PDF document text
    • http://files.powersresourcegroup.com/uploads/1/3/0/7/130775629/kirajija.pdfIn PDF document text
    • http://files.piperfayephotography.com/uploads/1/3/2/3/132303019/4326301.pdfIn PDF document text
    • http://files.davidsmothers.com/uploads/1/3/1/3/131382092/subojun-kabudufaxun.pdfIn PDF document text
    • http://files.ylhoustonsw.com/uploads/1/3/1/1/131164364/11a9d.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/1/0433/4521/5637/files/66578583635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6400/7583/files/44356949040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2131/8820/files/dekowedosogevisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/kumexopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6498/1664/files/pulp_fiction_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/70069198523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3040/4502/files/gebepuwimizadomemudafuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/45325669721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/48414075245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/lupanivote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5240/7704/files/32947663005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nidosavexurirevinuno.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 3

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_off00005ca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA9 5108 bytes
SHA-256: a2b06bdf39a32e511f0666b3c5f9da21c2348239ddb4512ba2e17d74c7119e29
font_01_sfnt_off00006e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1C 12608 bytes
SHA-256: a11c673ba673c24f3da2689d2517ce19be3fbc4252bfe0e153fa7d7239610438

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