Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f05326ca1ce2d05…

MALICIOUS

PDF

58.0 KB Created: 2020-08-05 10:00:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2c9f76a03ba72a7ffd041761ce9afef5 SHA-1: 0d966d58258d22d74a6257b4d639679099bab44e SHA-256: 0f05326ca1ce2d05f48aa72df2e6800b49bbe6bc67879e4329dcf176280e9e31
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a link farm and a redirector URL, indicating a phishing or scam attempt disguised as a free book download. The ML classifier strongly flagged this PDF as malicious, and heuristics confirm it links to known malicious redirector infrastructure. The document body contains the lure text and multiple embedded URLs, including the primary malicious redirector.

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=descargar+libros+de+gustavo+adolfo+becquer+pdf In PDF document text
    • http://files.gethealthyknox.com/uploads/1/3/2/6/132696214/6819ea1.pdfIn PDF document text
    • http://files.thegreatlife.com.au/uploads/1/3/2/3/132303010/ed7414f14e6d641.pdfIn PDF document text
    • http://files.cedartboats.com/uploads/1/3/1/4/131438036/3849681.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/1/0431/7567/4014/files/zeroxufuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2532/4439/files/john_deer_leaf_blower.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4906/6397/files/zekamakufurabigosar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4012/9692/files/minecraft_mortal_kombat_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3534/4539/files/sasevilalunojezeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5547/files/donutedagujefudef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6425/4883/files/disadvantages_of_computer_network.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39806276645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4018/7303/files/types_of_neural_tube_defects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5336/7975/files/21460304466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1932/7896/files/rizixerefexaribi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/medosep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9227/1519/files/dojepagobogupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0389/6217/files/wilderness_survival_quiz.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_off0000a06c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA06C 5648 bytes
SHA-256: 7d931fa5a922bb663816800c24484b7accbbeb36209f2c7c027910b4617f3774
font_01_sfnt_off0000b3b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3B2 11364 bytes
SHA-256: d4c4cd4ddd97dd6933c9c90d61ee5b7c07eef0c7c2ce03d3f6f28286c9d88540

Open this report in the interactive analyzer, or submit your own file for analysis.