Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cabc7de5eeb32cf…

MALICIOUS

PDF

49.1 KB Created: 2020-08-07 07:23:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f27e3de2ef3a849c1e295817567bead SHA-1: abc732f58d8d707b2e1bc2c504c09acefcc550b5 SHA-256: 6cabc7de5eeb32cfb904f3f21a0513d7c85850397232cfe1b6a2a92838c97020
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as academic materials like 'Physics textbook year 11 pdf'. It utilizes a redirector URL, 'https://ttraff.cc/pify?keyword=physics+textbook+year+11+pdf', which is flagged as malicious. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a phishing or scam attempt to drive traffic to potentially harmful sites. No scripts were extracted, but the embedded links and the nature of the heuristics strongly suggest a phishing lure.

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.cc/pify?keyword=physics+textbook+year+11+pdf In PDF document text
    • http://files.longshort.ca/uploads/1/3/1/3/131381605/9637927.pdfIn PDF document text
    • http://gubife.healingnl.com/uploads/1/3/0/8/130874232/c5a8d1.pdfIn PDF document text
    • http://files.withoutbordersshop.com/uploads/1/3/2/7/132710575/d9be58fe2f658b1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/18320135198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/79915271246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/20091836932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0248/6180/files/wulenutovatipadun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0313/1542/files/82474349983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2772/6489/files/93448217023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5400/files/tuwusanubifofakatag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4101/3415/files/32293727374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2332/files/xakimemibefalidubeboki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/wibejadudag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9569/4239/files/fesikuvuripe.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A3 5320 bytes
SHA-256: 4be3ccb11c9cad3fe12d8c974e9e2e821b3971a5e8bf5f206101b898d834c885
font_01_sfnt_off000085c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C9 10356 bytes
SHA-256: 1fc3c00bca23dae5888ae68ebf970b69b52ceb8e2480363ad1e202e92c43013c
font_02_sfnt_off0000a92c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA92C 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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