Malicious PDF — malware analysis report

Static analysis result for SHA-256 a46ae6997f04cd61…

MALICIOUS

PDF

36.9 KB Created: 2020-08-10 20:32:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f97f33b5b7cc23bca2004ee03918bec1 SHA-1: 6b044993dfdaa0aff625322a9483aaefe5266cb5 SHA-256: a46ae6997f04cd6108eddb1452b985a068085e49921b51c9f4af93ebb903185e
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one to a known malicious redirector at ttraff.com. The document body text, though heavily obfuscated, appears to be a lure for "Cambridge igcse english lesson plans pdf". The presence of numerous Shopify-hosted PDF links suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites. No scripts were extracted, but the PDF structure and embedded links strongly indicate a redirection-based attack.

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.com/pify?keyword=cambridge+igcse+english+lesson+plans+pdf In PDF document text
    • http://jipawore.adorableskunk.com/uploads/1/3/1/4/131483083/821ce485919f.pdfIn PDF document text
    • http://files.gumsaan.com/uploads/1/3/1/6/131637385/rubexowidoxadid.pdfIn PDF document text
    • http://files.enaakshikotwal.com/uploads/1/3/2/6/132695714/wulaxuzevurusa-paxakariweja-sajofisudal-xefulanotafawot.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/1/0431/9641/6157/files/wikafux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/adobe_premiere_pro_cc_2020_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0313/1542/files/9406754485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/48906375174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4855/9004/files/fur_elise_piano_notes_easy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/cqb_training_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1079/3370/files/276205513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0514/1411/files/tezijilusuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/aromaticity_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1003/9719/files/derezadawup.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_off000050ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FF 5612 bytes
SHA-256: 845066837d1b2be38aa0717f22e59a146763b08621df6c423bdff44a2a8fad19
font_01_sfnt_off000063e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E1 10248 bytes
SHA-256: 23da66bad6b2b56fa1fe5aefe3b74689f293ae089b455eaa5dfca623857a697f

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