Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fecd70960126cba…

MALICIOUS

PDF

39.5 KB Created: 2020-07-28 09:24:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b639ac8344044896e5dca4225a9fdf5f SHA-1: 0762284d809faddc4f0af5e8ffcd356fddcbb818 SHA-256: 4fecd70960126cba1020ca29122447611ae64082a57de548152d763bb3fb10ea
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.cc). The document body, though heavily obfuscated, suggests a lure related to a book or self-help topic, aiming to trick users into clicking the malicious link. The presence of multiple Shopify-hosted PDF links further indicates a link farm or SEO manipulation tactic to distribute the malicious content.

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=quererme+mas+bernardo+stamateas+pdf In PDF document text
    • http://files.soaptastic.com/uploads/1/3/1/4/131406321/0e7a7f.pdfIn PDF document text
    • http://files.ilihiamaui.com/uploads/1/3/1/3/131379514/gojana.pdfIn PDF document text
    • http://files.plusvacationrental.com/uploads/1/3/2/6/132683357/xizibidifilana.pdfIn PDF document text
    • http://files.intuitivesuccesscenter.com/uploads/1/3/2/6/132680933/nulemujazunojivexupi.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/1/0431/6109/2245/files/tipidemul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9649/7573/files/buginanogusefid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/70167484730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3872/8611/files/zawis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2119/files/zojaxisevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4951/7205/files/12854642624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3574/4673/files/93202110430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6818/files/nagulojubirezexonud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/5572171283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5602/files/kijut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/futupinoxotederoxewol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/56673219945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8434/9591/files/senutesepaxar.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE4 5192 bytes
SHA-256: 9568a69f76a9b5007e61520bee86f6c611b6ef1d5956ab955559bd02e7ee3168
font_01_sfnt_off00006d58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D58 10348 bytes
SHA-256: 48efe0d6682f9b507a8ff3bad127524894a0775959ee24e150a80fbb152b581d

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