Malicious PDF — malware analysis report

Static analysis result for SHA-256 33b5023793b952b9…

MALICIOUS

PDF

43.2 KB Created: 2020-08-06 07:00:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b7d39f8d6dd580ba6644e33df01c4180 SHA-1: 2f942fd84f6b1742d5af5f87a3b5df9c13765bbb SHA-256: 33b5023793b952b94af2834f576f3873953867b266174a9403a158b2bec69f8e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the text 'Landscape ecology book pdf' and a URL that appears to be part of a link farm designed to improve search engine ranking for malicious content. The primary malicious URL is https://ttraff.com/pify?keyword=landscape+ecology+book+pdf, which likely leads to a phishing or malware distribution site.

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.com/pify?keyword=landscape+ecology+book+pdf In PDF document text
    • http://files.jeninottphotography.com/uploads/1/3/2/7/132710669/148162.pdfIn PDF document text
    • http://files.riveredgeschoolsreach.com/uploads/1/3/1/1/131163904/zekoji-ladawaguz-goriroj-piponiw.pdfIn PDF document text
    • http://files.gbyws.org/uploads/1/3/1/4/131483019/paludizixi-pazibokadelok-xovubonavegazuz-nobuxudisapefod.pdfIn PDF document text
    • http://files.matangold.com/uploads/1/3/0/7/130740536/8939316.pdfIn PDF document text
    • http://nakaxal.vastcomtech.com/uploads/1/3/2/6/132683188/revonive_lorigaw_defotamasuxoniw.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/1/0438/0891/5613/files/tejosurojakujubizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9625/1304/files/40803714226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5278/6074/files/acid_reflux_diet_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7929/5383/files/girores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/tintin_comic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1562/7175/files/kudivuzonutova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8632/2600/files/22220804801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0180/6997/files/bixupapuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9460/files/7646169573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/tabla_de_verbos_auxiliares_en_ingles.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 8

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_off00006870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6870 5472 bytes
SHA-256: ccd009b364f8736e47c9bed0bfd08937fef3b677f8093b9fe4fbe8b9d4da6d5c
font_01_sfnt_off00007b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B36 10720 bytes
SHA-256: cd9763577948b581959840c5044f8a9d4abedeb1a5d62ec845a76453da0e850f

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