Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1eff97e93864084…

MALICIOUS

PDF

38.7 KB Created: 2020-08-22 10:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffcffbf42bfba1ceb5e7b5986eca104d SHA-1: 78e8992f5012f18ad11dec6f561039954acfd021 SHA-256: b1eff97e9386408486c206881f41f2b3b952a1db33a33f3c1d4b657f4e3f69c8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=fly+ludovico+einaudi+piano+sheet'. The document body, though partially corrupted, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. 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=fly+ludovico+einaudi+piano+sheet In PDF document text
    • http://files.dynamicjourneystravel.com/uploads/1/3/2/6/132682934/lurotage_feritax_bonajanog_kivomi.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/1/0440/2796/9686/files/gokagozuxapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/neretidesalefadim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/fivilezuzej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/aristoteles_historia_animalium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/meputuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3920/1192/files/boston_bruins_nesn_reporter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4170/9462/files/jesepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/jadegutafob.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 1

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_off00004c7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C7B 5180 bytes
SHA-256: 0fd4700a4b793f46a37eb0e9dc3a72f8517472665496d55b1729f021d25389ad
font_01_sfnt_off00005e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E23 15608 bytes
SHA-256: a2f2091374f6300b447d363f70e0400adbcabbaf558e26bc3947b13f9133a00d

Open this report in the interactive analyzer, or submit your own file for analysis.