Malicious PDF — malware analysis report

Static analysis result for SHA-256 f577731e6bb67565…

MALICIOUS

PDF

40.0 KB Created: 2020-08-11 16:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d027d20c002a5ff9c0b6771be7a2490c SHA-1: 7f6e89d2ffd28f69af5371dc22fcb04338f11021 SHA-256: f577731e6bb675659aadaf7e4b8cd456eac7cb37ba7dc872718e8bcfb71d146d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one pointing to a known malicious redirector infrastructure at ttraff.ru. This redirector is likely used to funnel victims to a malicious payload or phishing page. The presence of numerous links, some disguised as free downloads, indicates 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.
  • 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.ru/wb?keyword=palladium%20rpg%20pdf%20download In PDF document text
    • http://fodejufus.rotexsilversolutions.com/uploads/1/3/2/6/132681670/pewokanezim-dasud-wizekujovuromu-xofasomobatigok.pdfIn PDF document text
    • http://files.shinyheadmusic.com/uploads/1/3/2/6/132681647/lobojinefarodod-relog-revavure-poruxosej.pdfIn PDF document text
    • http://files.cramerpottery.com/uploads/1/3/0/8/130813747/7942585.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/sonasom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3521/4503/files/legal_definition_of_land.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/98994023209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5329/2440/files/how_to_change_your_minecraft_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/78141736843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7074967355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7093/0600/files/woxidadexaxemudopiwanapin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4053/0854/files/25817189702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9085/4566/files/wrightwood_ca_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/paypal_payment_receipt.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004db7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DB7 4960 bytes
SHA-256: fa2f8a41ebea4b28dfe19f1348c2fa06892c761d88072df7f61e1b0e13b5003a
font_01_sfnt_off00005e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E77 11324 bytes
SHA-256: df4735c78f3513f08a4b2c1e746f650cd686cfe6ce2677d4cc7825200719541e
font_02_sfnt_off00008397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8397 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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