Malicious PDF — malware analysis report

Static analysis result for SHA-256 37758c7c97322296…

MALICIOUS

PDF

41.1 KB Created: 2020-08-21 20:57:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e66641034bf40d05214862438aa73d6b SHA-1: fd123f814d3143f110dc78895ef1f65fe818613a SHA-256: 37758c7c973222969946eea962bd99402337a11a51a5dfa4234401daf3dafd38
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=asphalt+8+airborne++for+laptop'. The document body, though heavily obfuscated, contains references to 'Asphalt 8 airborne for laptop' and the URL, suggesting a lure to trick users into clicking the malicious link. The presence of numerous Shopify links, while many are benign, indicates a link farm strategy to obscure the primary malicious destination.

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=asphalt+8+airborne++for+laptop In PDF document text
    • http://files.chrisdreliszak.com/uploads/1/3/1/8/131855992/jabikufogaduvatek.pdfIn PDF document text
    • http://files.alanbirtwistle.com/uploads/1/3/1/3/131383664/werox_xapedewero_bemidituziv_zurer.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/1/0431/2865/1938/files/towivotomepux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/tagolisokokelefewovuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/37354855231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3464/7445/files/microsoft_windows_search_filter_host.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8611/7032/files/paulo_coelho_libros_veronika_decide_morir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/54264012939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7311/7086/files/andrei_deiu_workout_routine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7359/1701/files/21822761413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6577/0133/files/51031747140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/fifatonikuredi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/joruzefanufaroxunajelavas.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_off000061f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F0 5312 bytes
SHA-256: f6a934640c86430c7be0ff9f1b26ad75f68fed9ef49dd3e39d04a0c05ffd66e2
font_01_sfnt_off000073eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73EB 10540 bytes
SHA-256: 80d203c5ce9d6f59a09b0b670123afebc8a17c9a263757bfb0ff7c1d09ca54fe

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