Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5da4f36afbc3f34…

MALICIOUS

PDF

43.5 KB Created: 2020-08-20 16:33:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74bb90f9ff193c4ab2c44f20728a854a SHA-1: 0c517a2b12453c748533ab6615f1aa1890d4204a SHA-256: d5da4f36afbc3f3483b4b56dac65d35eecfd32fc55870a4c17855e1a4631c643
202 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a 'free boarding pass party invitation template'. The link leads to 'ttraff.cc', which is known malicious infrastructure. The document also exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify domains, likely for SEO manipulation or to host further malicious content. The presence of a visual download button lure further supports a malicious intent to trick the user into clicking the link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free+boarding+pass+party+invitation+template In PDF document text
    • http://files.margiecantor.com/uploads/1/3/2/7/132740277/vojujodobiro_wesolo_sizarofiwifiga.pdfIn PDF document text
    • http://papika.eugeniechantheater.org/uploads/1/3/0/8/130814851/fefolek-nojamexemifokun-vufof.pdfIn PDF document text
    • http://files.rahmathassan.com/uploads/1/3/1/4/131438098/5534c949eadbfa.pdfIn PDF document text
    • http://files.haranresources.com/uploads/1/3/1/0/131069893/5507500.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/1/0436/4432/1945/files/libro_de_colorear_dinosaurios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7087/2995/files/zofuritow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4037/2896/files/candide_magyar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9141/7505/files/juginevux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/salelixakibikiziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6803/8049/files/sorudawoposipanalidedote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7616/3486/files/21067769007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/downward_arrow_technique_cbt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/7723/2790/files/application_of_amperometry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9729/9869/files/android_antivirus_apk_full_version_free.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
🗂 Part of campaign: bywayfinearts.com 3 samples

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_off00006d47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D47 5536 bytes
SHA-256: acc1fb6f335fa0293a405d8d6e8a7b55d0a5acf181fc42ce5864bdb215ed0065
font_01_sfnt_off00008003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8003 9708 bytes
SHA-256: f5484c492372991ef7a6af46eff79f67810a66c45076792f01f4c00e097d3ecf

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