Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7377f878c3bc870…

MALICIOUS

PDF

51.1 KB Created: 2020-09-18 18:50:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06a303304986ade712e5539c5263451f SHA-1: 31dc3e3527a1fe5acefc6976a235ea51604af59f SHA-256: f7377f878c3bc87084a0319442a1d6fec47136a1850f7cc48d6e32da33ef877d
184 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.link'. The document body, though heavily obfuscated, contains text related to 'Manual davinci resolve 14' and the malicious URL, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly supports the malicious verdict.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/pify?keyword=manual+davinci+resolve+14 In PDF document text
    • http://xugokizuw.connections-speechtherapy.com/uploads/1/3/1/4/131406841/22fdf63e8f.pdfIn PDF document text
    • http://gogodux.farenelizabethwilbur.com/uploads/1/3/0/7/130738591/5277885.pdfIn PDF document text
    • http://files.designcycle.co/uploads/1/3/1/3/131382841/940de.pdfIn PDF document text
    • http://files.billelenbark.com/uploads/1/3/2/7/132710700/ninunap.pdfIn PDF document text
    • http://files.joshuabenkingfineart.com/uploads/1/3/2/6/132681507/d2c6a2b003f8.pdfIn PDF document text
    • http://files.jonahnewton.com/uploads/1/3/1/3/131381237/7605072.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/1/0431/1128/4893/files/45247150379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4424/1557/files/gidabobofiginoxefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4962/3462/files/58568070551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3455/0173/files/baroque_wii_iso.pdfIn PDF document text
    • https://e7468790-fd34-461c-9eda-007843b92fd1.filesusr.com/ugd/b7306e_b83ccba17ef54629adc20435d015d073.pdf?index=trueIn PDF document text
    • https://e3c893fc-c03a-4701-92fb-83c78bd692f8.filesusr.com/ugd/98e2de_a59091bd7b7a4606a76649e6d50e62e4.pdf?index=trueIn PDF document text
    • https://ef33c71b-7b9a-428b-9247-6e608ed6eca9.filesusr.com/ugd/4aae87_ee7a5cb1c2b34470bf5ead94a6b5d5a9.pdf?index=trueIn PDF document text
    • https://708fad16-22f8-43f1-8990-200abfb9a465.filesusr.com/ugd/18ee90_2041e6747eca433e84a7fec4b0cb4d22.pdf?index=trueIn PDF document text
    • https://6b86eb0d-40a6-4650-ad95-9c06ac74fd8e.filesusr.com/ugd/d216cb_38bb6753f7f84f379de7d504b410fbb5.pdf?index=trueIn 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 3

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_off00008962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8962 5136 bytes
SHA-256: 2bd26bc65fe93d523289b90b4471f6729ac0cf443629699829026901c8e55660
font_01_sfnt_off00009b04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B04 10764 bytes
SHA-256: 57f618b63636e77676540c67d35438f49b489b8508113a3cc747944b6cac26bc

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