Malicious PDF — malware analysis report

Static analysis result for SHA-256 0634a6f49bc91cc2…

MALICIOUS

PDF

46.0 KB Created: 2020-07-27 21:22:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 724817b9208140f801b8f9f6af39f304 SHA-1: e0593220d4ee932ecf73f1da5ef563aa9c54ccb5 SHA-256: 0634a6f49bc91cc24c614f3698bad2e4f579c382e49d70a0654d782519134f7c
202 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm. One critical heuristic indicates the PDF links to known malicious redirector infrastructure via the URL 'https://ttraff.ru/pify?keyword=cinema+box+not+working+android'. The presence of a 'download button' heuristic further supports the lure-based attack pattern. No scripts were extracted, but the overall structure and link farm suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cinema+box+not+working+android In PDF document text
    • http://files.frontierprojects.org/uploads/1/3/1/4/131409055/kuliwazesivo.pdfIn PDF document text
    • http://files.aberdeenlatinschool.com/uploads/1/3/2/7/132740564/66c3aeb1e9.pdfIn PDF document text
    • http://files.laurenswildliferescue.org/uploads/1/3/2/6/132695738/2906118.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/1/0431/7341/3032/files/55538087943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/xazen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4693/4430/files/namavixemopiwinosin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/welomomafevavopevetuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/37260920625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3082/3583/files/66255902414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4496/files/48650050355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4136/5922/files/saluwiwekubowumidavanob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2257/1930/files/ganixetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8911/6836/files/gexosujufepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/xunipopubividere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65039204935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/rakipolititajuneratoraj.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
🗂 Part of campaign: aberdeenlatinschool.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AA 5108 bytes
SHA-256: 3f068d6160f15655fb7b7fa816498ac6240dd62b737fc7f60c72f9fa3a8e636d
font_01_sfnt_off000087fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FD 10232 bytes
SHA-256: 7bb1a6b32a084dae8b95dc82e0a5dff15b226bf6c98a65e15f0efbd6bcd7cce9