Malicious PDF — malware analysis report

Static analysis result for SHA-256 68610bada54667d5…

MALICIOUS

PDF

44.8 KB Created: 2020-08-28 01:23:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04ae08682bab55d0336d704a3f7fa457 SHA-1: d5638f4db72ebbe2700cf408606080cd4bf2b989 SHA-256: 68610bada54667d5453663526aca1b48b8d40c1db4b3916980b08a8fea6e8d15
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=alpiste+lactancia+materna+unicef, which is used in an SEO-based link farm lure. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to malicious content, likely for phishing or malware distribution.

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.com/pify?keyword=alpiste+lactancia+materna+unicef In PDF document text
    • http://files.demchakmichael.org/uploads/1/3/1/4/131452735/7807214.pdfIn PDF document text
    • http://files.ocwino.com/uploads/1/3/0/8/130814112/sigonesuf-woruginubasen-fukaxixexezadax-zemagejajor.pdfIn PDF document text
    • http://files.kamalmus.com/uploads/1/3/1/3/131380341/2667526.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/1/0432/7574/7483/files/community_worksheets_for_preschool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7960/6176/files/voki_create_your_own_avatar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zimupumunilojoduwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1265/1170/files/playboy_magazine_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5286/6463/files/anemia_slideshare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/the_chronicles_of_exandria_the_tale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9334/3899/files/20491870155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2613/6731/files/nogamuv.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_off000071bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BD 5152 bytes
SHA-256: f6a9471931ca454676d051c3c0f470972da44d6a42d77b030f8ac0ef0b7d8a72
font_01_sfnt_off00008323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8323 10468 bytes
SHA-256: 2104ddf5bb47c8ade806050b95e225199666ed2496f188533f7fd0404fbb54cd

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