Malicious PDF — malware analysis report

Static analysis result for SHA-256 279bbdc5c17f84ff…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 18:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc3dd7ae80432721f7f02116ec6e965f SHA-1: 1913c4a505e8bfdbe3f44635679311fdedc175cd SHA-256: 279bbdc5c17f84ff08a0f744dc32d7cbdaa136361b5fe621b9287a35c889df1e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=saab+9+5+repair+manual+pdf'. The document body, though heavily obfuscated, contains text related to a 'Saab 9 5 repair manual pdf', suggesting a lure to entice users to click the malicious links. No scripts were extracted from this sample.

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=saab+9+5+repair+manual+pdf In PDF document text
    • http://files.bigtable.net/uploads/1/3/0/7/130739404/xipexuzogog-lutejavujiwuzu.pdfIn PDF document text
    • http://files.greenleafmissoula.com/uploads/1/3/1/4/131453006/e77a5ee4.pdfIn PDF document text
    • http://files.berreyart.com/uploads/1/3/0/7/130775998/naxibab.pdfIn PDF document text
    • http://files.jennypegg.com/uploads/1/3/0/8/130813846/9709749.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/1/0430/5852/8405/files/jepikujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/rewowuwakofusisaxixatek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0822/files/31299227936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/jamba_tyler_the_creator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2924/9694/files/pokemon_gba_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3171/5225/files/rikokiwowasagegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/63384809322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/85957941704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5265/files/xululixeveritiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/14146529011.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_off00006dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCF 5532 bytes
SHA-256: 4077f589477f4ab0e00031d8f16178c929713a3932731dfa8cfeba1efd83d47e
font_01_sfnt_off00008088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8088 10176 bytes
SHA-256: 88026dada232be977e99d94a2b435a5bc81ee4cde9a9fd96063f3d2331cec3c1

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