Malicious PDF — malware analysis report

Static analysis result for SHA-256 772027dcf187123f…

MALICIOUS

PDF

40.9 KB Created: 2020-08-15 01:08:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95dd5727d0f1d410f3db07bd9ff05e80 SHA-1: 3371962a2d728c076994eb94ae166ba952852cfa SHA-256: 772027dcf187123f73e177d8468595f4d2d965dad9325ce7ed73b8518cec2cf5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL designed to look like a free download lure for a 'Blaupunkt smart tv 43 inch manual'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate the document is part of a link farm designed to redirect users to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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=blaupunkt+smart+tv+43+inch+manual In PDF document text
    • http://files.aerialmediavisions.com/uploads/1/3/1/3/131398605/wiwizorepimivami.pdfIn PDF document text
    • http://files.iconictruth.com/uploads/1/3/1/3/131380126/nipin.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/1/0429/1792/0934/files/dizesaledutufila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4496/9367/files/67335310923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6879/8629/files/planos_arquitectonicos_de_casas_de_2_pisos_completos_en.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3696/5026/files/gujixutewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/litisubisosovoferemel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/mawazevuparofojilabutiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0548/3942/files/lojawumupojubakuravedis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/56735334628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/korofupisezevanujolibeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9603/8812/files/kugunonogusepufivugul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/nuduzinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/21054323213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6292/7253/files/mowepedimenozatikilonu.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_off0000529d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x529D 5600 bytes
SHA-256: f99bae50cce4776ea74f3e00659214df8ec8d52f7c22785c5ee975c024cf0631
font_01_sfnt_off00006580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6580 15344 bytes
SHA-256: e4580492cb054d7e135396fa866a9755b165621577938a6bf28fffe7351af959

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