Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed97f3e2c1684242…

MALICIOUS

PDF

58.9 KB Created: 2020-08-04 21:05:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: efc5f01b0a7429a571da42d0d4ffc03e SHA-1: 287e85dfc8cc204b5dbdfa5186fd8088c3923017 SHA-256: ed97f3e2c168424278e851e1afe61994fee4ce6c8081489881ff7341df0c691f
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a lure for a biology textbook, which is a common social engineering tactic. It embeds multiple links, with one identified as a malicious redirector pointing to 'ttraff.cc'. This redirector is likely used to funnel victims to a malicious payload or phishing site. The PDF also contains a mass external link farm, suggesting an attempt to manipulate search engine results or distribute malicious content widely.

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.cc/pify?keyword=biology+1+textbook+miller+and+levine+pdf In PDF document text
    • http://files.monteservicingandrepair.com/uploads/1/3/2/8/132816202/a61a156af52.pdfIn PDF document text
    • http://files.synergyhairandbeautyelloughton.co.uk/uploads/1/3/0/7/130738696/gakoxitodivip.pdfIn PDF document text
    • http://files.cencalproperty.com/uploads/1/3/1/6/131606125/7bb5b2a30d.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/1/0431/0417/4233/files/dotupuzutenorajole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8392/files/obama_quotes_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/55129295388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4684/4054/files/28314320413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/pulajofejuwofifituxadil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/baxudedunejipadam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78108387577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6251/8182/files/32595983266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/nokapebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1409/3986/files/at_t_assembly_syntax.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 7

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_off0000a2e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E2 5720 bytes
SHA-256: 66b905cad1ec739863ca7a3e8dab51e0f1a5fd5bfb1a8b27bebc81d34dcc422b
font_01_sfnt_off0000b660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB660 12320 bytes
SHA-256: 17fcf0c36b0d9179e97eb179d9611ba60e85d0bc6dd36201edef05d59c252f8a

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