Malicious PDF — malware analysis report

Static analysis result for SHA-256 f627fd22f57fe60e…

MALICIOUS

PDF

36.4 KB Created: 2020-08-13 06:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fbb607919eadb569e860c332ad639a5f SHA-1: 4308a42fc4d0161b6255d7a80d83d71ce81ed42b SHA-256: f627fd22f57fe60edcbc302b5c0a12d69538a679cdb02fa324e75479e913c574
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results for educational materials, with the primary link redirecting to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=barron+s+earth+science+regents+book+pdf'. This indicates a phishing or social engineering attempt to trick users into visiting a harmful site. No scripts were extracted from this sample.

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=barron+s+earth+science+regents+book+pdf In PDF document text
    • http://files.fernleyrepublicanwomen.com/uploads/1/3/1/6/131637163/guzefozibaxinig_wopanakuda_wuxanorolipiro_fomobafikaw.pdfIn PDF document text
    • http://files.hawaiioceanambassadors.com/uploads/1/3/1/4/131454270/bc36a953a9.pdfIn PDF document text
    • http://files.fairytalefit.com/uploads/1/3/2/6/132696465/finudeg.pdfIn PDF document text
    • http://files.midlandsmortgages.co.uk/uploads/1/3/1/4/131483685/fakuraded_fiwepobikak.pdfIn PDF document text
    • http://files.luismojica.com/uploads/1/3/1/6/131636907/7781662.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/1/0432/1371/7662/files/41570153030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5100/7638/files/29169454532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/apostila_balistica_forense.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/27080338495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/91476182771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/2246104875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/bodyline_autopsy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7122/1410/files/centrales_electricas_del_peru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/45325155838.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_off00004eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB0 5636 bytes
SHA-256: db5dcbb5fe08099a5011e345aa6a4d7860c15d8468bced4bb20ac7f88cffcc6f
font_01_sfnt_off000061d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D3 10264 bytes
SHA-256: f899a1e8af1e3565138b5ef45ac01f7691f06f0140fda372641308c6ed9580a1

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