Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba37c4cd4b5ee9c…

MALICIOUS

PDF

47.6 KB Created: 2020-08-02 04:53:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c2d4a05c6e0b28ae8eecfbda10dfbdc SHA-1: 025f30919705cb6e68119a429da8f271afaf8627 SHA-256: 0ba37c4cd4b5ee9c2f4068cf402ec126feb7ced18d10b2926c139e973b5377bc
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirector infrastructure, suggesting a link farm or phishing lure. The primary redirector URL, 'https://ttraff.ru/pify?keyword=viva+la+vida+guitar+chords', is identified as malicious. The document body, though heavily obfuscated, also contains this URL, indicating its central role in the attack. The presence of many links to external PDFs, some hosted on Shopify, further supports the SEO-based lure tactic.

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=viva+la+vida+guitar+chords In PDF document text
    • http://files.jonathanbrooks.net/uploads/1/3/0/8/130813965/guropasodelofon.pdfIn PDF document text
    • http://files.arborparkpto.com/uploads/1/3/0/7/130776861/2de498092a69a.pdfIn PDF document text
    • http://files.alekstinapoodles.com/uploads/1/3/0/7/130776519/4314976.pdfIn PDF document text
    • http://files.hhseyeofthestorm.org/uploads/1/3/1/4/131452823/7b966bbf72931.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/1/0429/8060/6111/files/61010307935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4188/1254/files/teropexuxon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4299/5352/files/bufogowusomawug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8108/0738/files/82679571643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5658/5114/files/50964887075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5215/files/introduction_to_computer_security_goodrich_tamassia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4053/8773/files/97475217689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7624/7971/files/ligejovixeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/20210892545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1725/7628/files/48888708937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/repisumefenot.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6A 5224 bytes
SHA-256: 4cd73e00681ff2873ff9183e2e943dedbe34b40b52dfd58fe0ce9f6ed193e510
font_01_sfnt_off00006c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C33 14628 bytes
SHA-256: ee0530304f4f6309076d229984a6217cfe746d229104751d6bc72b0131400ca4
font_02_sfnt_off00009a0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A0F 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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