Malicious PDF — malware analysis report

Static analysis result for SHA-256 0039571beb865366…

MALICIOUS

PDF

39.7 KB Created: 2020-09-15 02:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e929cbffdfce27dad8fb98d2bba9e99a SHA-1: dd4b367d68efaf518c6276aa596c0fd217f775df SHA-256: 0039571beb8653663499cb9d9d0bb62b2cf54a21838952de1744b12f1fee7b8d
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for phishing or malware distribution. The document body text, though partially corrupted, suggests a lure related to a 'teacher contract' to entice users to click the malicious link. The ML classifier strongly indicates maliciousness.

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.me/pify?keyword=hudson+public+schools+teacher+contract In PDF document text
    • http://dojopiwi.newlifeministriesihod.org/uploads/1/3/2/6/132681579/9decd844.pdfIn PDF document text
    • http://files.tipsyglasswinery.com/uploads/1/3/1/4/131452903/4773e7.pdfIn PDF document text
    • http://wurok.lunaintegrations.com/uploads/1/3/1/1/131163635/d64d4b620.pdfIn PDF document text
    • http://xaxin.propertyhomes.org/uploads/1/3/0/9/130969352/janux.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/1/0433/3741/6869/files/elements_of_drama_worksheet_middle_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/zexuvamurogutijirofamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0470/6720/1704/files/variwepibufudamenulotibep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/potaxerifijaguvafanitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/86959116573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/0148/8039/files/fakobatasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0835/0615/files/vobaxowizatekizubedomupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3470/9914/files/decameron_giovanni_boccaccio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1437/4054/files/80864203847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5824/9384/files/91457138292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6830/9152/files/applications_of_derivatives_ncert.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/aptitude_test_study_material_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/72012713671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/reading_and_writing_grade_11_download.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6E 5260 bytes
SHA-256: 90874f1299056fd565b40ec4e6f7ea1dce95ebb8fdcda1a9199f7de79e712019
font_01_sfnt_off00006f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3F 10100 bytes
SHA-256: f7aa58ae1e7f8860c18bcf31320027aa484d180708a980df937e8f599947b2f8

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