Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b6b34e1102aa956…

MALICIOUS

PDF

41.9 KB Created: 2020-08-10 04:59:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b987a1c67d9939dbfb53b87ecd32384e SHA-1: c6e6bd21c5d316b5cedf2dfa3b8b054ce78b513a SHA-256: 4b6b34e1102aa956ae13aa424ecc0b12dec4db0f0b454a69818f059ce05f7cb1
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a 'Catia tutorial pdf'. The document also features a large number of embedded links to Shopify-hosted PDFs, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of exploit or malicious content delivery.

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=catia+tutorial+pdf In PDF document text
    • http://files.eisol.my/uploads/1/3/1/3/131384407/2841128.pdfIn PDF document text
    • http://files.nanomat2018.com/uploads/1/3/2/7/132740281/tavafagalezugo_katanavum_sefaxof.pdfIn PDF document text
    • http://fixam.susandonetti.com/uploads/1/3/1/6/131636612/6567993.pdfIn PDF document text
    • http://files.biggsbassethounds.com/uploads/1/3/1/8/131857071/84fb7a2093dbc.pdfIn PDF document text
    • http://files.treeofoil.com/uploads/1/3/1/4/131409017/4821439.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/1/0437/6241/7825/files/28382063998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/deloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2831/5293/files/dukanetomudotuson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5557/1356/files/bogufapevabosijerisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0803/files/71298960742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/zotosuxowijizejaxegoxel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1034/2564/files/ginirajasutoruxozobate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5387/files/ccna_service_provider_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/adjectif_pithte_et_attribut_exercices_cm1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1712/6556/files/python_datetime_to_string.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0118/3384/files/34293925317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/the_adventure_zone_graphic_novel_download.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_off000065c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C5 4760 bytes
SHA-256: e96713a2e2300046f397ad4e148ffe3046926751bb9b31ebc83b5d3d4125c9b2
font_01_sfnt_off00007602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7602 10988 bytes
SHA-256: ad5f485305437cb0288ef31b95b804059437e997204020ddb52fa2bdcdaf770d

Open this report in the interactive analyzer, or submit your own file for analysis.