Malicious PDF — malware analysis report

Static analysis result for SHA-256 4da26adeb78666d7…

MALICIOUS

PDF

50.0 KB Created: 2020-08-24 10:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25e4a828e2e2a3a757dc7e1c62d6095f SHA-1: bc70e6e88c6ed5bc85f55b28f45a46556afd1767 SHA-256: 4da26adeb78666d77cdcc357181bf8c4d9b95699c89dfd702827402380e539cb
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation to increase visibility of the malicious link. No scripts were extracted, but the presence of a malicious redirector URL is sufficient to indicate a phishing or scam attempt.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=free++template+cv+indonesia+kreatif+word In PDF document text
    • http://files.ciai-fondazione.org/uploads/1/3/1/6/131606392/bc14a10.pdfIn PDF document text
    • http://files.spencerfamilychurch.org/uploads/1/3/2/8/132815785/sojagipeboxija-zewiwomalux-tifaletas.pdfIn PDF document text
    • http://files.arosenthallcsw.com/uploads/1/3/2/3/132302940/lobirogezafudakij.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/1/0428/4514/3207/files/62782707690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/27940819956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7802/5377/files/losofumevukubanelimasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/lord_byron_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7742/6584/files/emirates_airlines_information_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8628/8798/files/xumuwutakinude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rowogumidakedodovejizana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7961/5142/files/honda_gx160_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2974/8901/files/vazesamapimoxoturipanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/catcher_in_the_rye_final_test.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 6

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_off00007c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C53 5472 bytes
SHA-256: 1e625c162318377787a941418b06675611ca004fc601995e0cb2cdb8b35e83cb
font_01_sfnt_off00008eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEB 14084 bytes
SHA-256: 3759e212520463a9839e0f77694e259f1abcdb10f1dc8751d81d33a3a08d0db4

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