Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1a6969dc21c1231…

MALICIOUS

PDF

41.2 KB Created: 2020-08-17 12:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba4f3002e554e6abea1f7a13bcf92f31 SHA-1: 7e41ba0d62afa5df8976e032e9485796615a6f5b SHA-256: b1a6969dc21c12310a8098289d05bccdd23baaec5119e464336c5f8a2ef6a352
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate documents but ultimately redirecting to a malicious domain. The primary malicious URL is https://ttraff.com/pify?keyword=exercices+corrig%25C3%25A9s+de+l%2527+amplificateur+op%25C3%25A9rationnel+pdf, which serves as a redirector. This indicates a phishing or scam attempt leveraging SEO link farming tactics to distribute 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.com/pify?keyword=exercices+corrig%25C3%25A9s+de+l%2527+amplificateur+op%25C3%25A9rationnel+pdf In PDF document text
    • http://files.thevinenyc.org/uploads/1/3/0/7/130775537/vezawuxojaloxebawi.pdfIn PDF document text
    • http://files.beblessedwellness.com/uploads/1/3/2/6/132681985/f23d5983046a48f.pdfIn PDF document text
    • http://files.quaboagsummerplays.com/uploads/1/3/1/3/131398533/c85a3b30eff5.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/1/0430/8749/5321/files/jopaponofopazafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8788/8551/files/potiduzikilalajapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4815/5806/files/brawl_stars_hack_apk_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/air_brake_test_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0298/5626/files/lotad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/94326212531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/64494992916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8689/5522/files/chemistry_formulas_for_class_9_and_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4977/0399/files/neuralgia_pos_herptica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8769/files/xagedugoponovaxesedow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/bonasugujifibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0591/0933/files/webinigofodax.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_off0000600d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600D 5676 bytes
SHA-256: 084dcad052a867d619cffe3c44defbb5a99574ef2f6b81b2642f520d37bfe87a
font_01_sfnt_off00007313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7313 10612 bytes
SHA-256: 7937abb76a094c03b698351afb44c73429a17c1c9ebd443eb22b56a8aeb6b678

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