Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d3347e86828e4d…

MALICIOUS

PDF

37.9 KB Created: 2020-08-21 07:33:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 721aad79b5af37a8360e5ba0343dba6f SHA-1: 1b39c02d52b6fa9816cc90ebe44ee8f902120f38 SHA-256: 80d3347e86828e4d20315382dcb4979446dc600417a6228a4cb86c30dc00735f
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=free+bracket+generator+pdf'. This redirector likely serves as a lure for phishing or malware distribution. The presence of numerous links to external PDFs, many with numeric slugs, suggests a link farm or SEO manipulation tactic to increase visibility. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=free+bracket+generator+pdf In PDF document text
    • http://nonamarif.alyssagrossman.com/uploads/1/3/1/4/131482803/bikevitoberuro.pdfIn PDF document text
    • http://rimedi.aprilsurgent.com/uploads/1/3/1/3/131381376/jaguritoveberurolu.pdfIn PDF document text
    • http://kunudub.vintageaffiliated.com/uploads/1/3/2/3/132303382/xavulatiwasoz-topobigido-xarexuk-sufuxoxe.pdfIn PDF document text
    • http://gamowi.laffpathways.com/uploads/1/3/1/4/131406717/6394135.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/1/0434/2356/3925/files/88772712335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/mugaditifavolixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0602/4090/files/blank_july_2019_calendar_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/91269050110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4570/0262/files/76608429623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/gilagobuzidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8461/1737/files/95466760146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0701/6103/files/kidejazusifebesurip.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 1

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_off00005670.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5670 5272 bytes
SHA-256: 6b957e8fc632241c637f237e8427ef193bd2927ae57205786dacca507b44ab5f
font_01_sfnt_off0000686b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x686B 10184 bytes
SHA-256: f3097fcd91a0a67d5bcc86bbbf98ce64ce72ef1d6edfe2156607839aef8773d4

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