Malicious PDF — malware analysis report

Static analysis result for SHA-256 2802744a532cb79c…

MALICIOUS

PDF

37.9 KB Created: 2020-08-11 17:11:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01cd4f71d0cfb2cb8cd5c00959fa201d SHA-1: 9461ec796d88095e0d0d40874b1cb940f0912740 SHA-256: 2802744a532cb79ca8aa9498321c68afbd7c298af2e48bfa8222693f3869c72c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF contains a link farm pointing to multiple external PDFs, with one redirecting to a known malicious URL. The ML classifier also flagged this PDF with high confidence. The document body contains obfuscated text and embedded URLs, suggesting an attempt to lure the user to malicious infrastructure.

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=lima+barreto+bruzundangas+pdf In PDF document text
    • http://jinagunup.newerag.com/uploads/1/3/2/3/132302780/3039102.pdfIn PDF document text
    • http://bexozik.mrsswainsartclass.com/uploads/1/3/0/8/130814017/demomexifudagu.pdfIn PDF document text
    • http://naduge.latifian.com/uploads/1/3/1/0/131070313/jozudaviwejuv-kafisazo-biferal-loferala.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/1/0447/8153/5389/files/mapa_krakowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2797/files/sword_art_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/52125517264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/56353351721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7974/9022/files/air_waybill_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7873/7302/files/landscape_company_profile_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3212/files/79623724436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/xixugamifunuxarixaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5586/5242/files/4162044296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9893/8274/files/94543133396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3128/2335/files/award_templates.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 1

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_off000056b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B4 5460 bytes
SHA-256: 26fb99ab5ea18b33ed597141389176e5dbf8d7492aed4449864b06f7ee10f48a
font_01_sfnt_off00006932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6932 9876 bytes
SHA-256: 4a275decc17eded07332bdbc224474b6329c339f47a484afd4045e17b73467d2

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