Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4fbf6f6cd2074f7…

MALICIOUS

PDF

45.4 KB Created: 2020-08-19 15:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 921421eaf610a0db75229213d7e0e44b SHA-1: 929f41b6c54b28b0e6f7052d0fc52046e306ba03 SHA-256: d4fbf6f6cd2074f724b28a0e0c64a4d20d842dabb92e19644cb8fb770f19fe02
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same malicious URL and a large number of other URLs, suggesting a link farm for SEO manipulation or redirection. The primary malicious URL is https://ttraff.cc/pify?keyword=best+free+casual+android+games+2018, which is used to lure users with a seemingly innocuous search result.

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=best+free+casual+android+games+2018 In PDF document text
    • http://fuxoten.carriesrealworld.com/uploads/1/3/1/4/131407406/vagegofa_notex_sovinew.pdfIn PDF document text
    • http://xupaj.ballykeppogueminiaturehorses.com/uploads/1/3/1/3/131383483/781508b8294b34.pdfIn PDF document text
    • http://fuwemigaz.shopfoxandfeather.net/uploads/1/3/1/6/131637047/fugowojikujiwetukoz.pdfIn PDF document text
    • http://files.brucedelfosse.com/uploads/1/3/1/1/131164460/rugerotutamite_dodiwone_xexamenus.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/1/0430/1750/2869/files/sugidijawedodiwexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8830/5575/files/faxudukibamiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9702/1861/files/bisufofubujob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7004/3813/files/83062784696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9034/files/95264449545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/seizure_disorder_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/67644382456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5668/5468/files/chemguide_acyl_chloride_alcohol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4128/4518/files/batepowupifusufomomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5796/2405/files/posilulunuvawig.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 4

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_off000070f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F3 5908 bytes
SHA-256: ee976115ce6024bf2ae6ada07f760f6991ce064deef04d9f407b3cc966950434
font_01_sfnt_off000084f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F4 10420 bytes
SHA-256: 7e738c8f273d0a6c5323b2b952e0a17ffcfa6a4776efaf430084dda74b37726a

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