Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d4b2c934d7bf46…

MALICIOUS

PDF

39.8 KB Created: 2020-08-12 12:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 792fa161045d6690e0a0e06b296ba384 SHA-1: 62135e19976966784eb38994de6d216e47e05f9b SHA-256: 79d4b2c934d7bf464df2e4bdb7ffe86b095361fbaee716979f8820c3b75292af
194 Risk Score

Malware Insights

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

This PDF document is designed to trick users into clicking links by impersonating a "tutorialspoint dbms pdf". It contains a large number of embedded links, with at least one leading to a malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded links likely serve to distribute further malicious content or phishing pages.

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/wb?keyword=tutorialspoint%20dbms%20pdf In PDF document text
    • http://files.thinkfoodla.com/uploads/1/3/1/8/131856331/pumozoliki.pdfIn PDF document text
    • http://files.rallytheatrecompany.com/uploads/1/3/2/6/132695553/3170976.pdfIn PDF document text
    • http://files.gunmanualsonline.com/uploads/1/3/0/7/130740193/buvisipi_momitadurudibat_kedorov.pdfIn PDF document text
    • http://lozariram.curtisbowman.com/uploads/1/3/0/9/130969744/2495299.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/1/0433/3453/3275/files/istqb_glossary_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3088/9126/files/wipurokix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0319/8115/files/22337571677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1884/4322/files/gubijekezodedunepububupas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8180/8549/files/pipebanoduvik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3943/8501/files/63391050970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/mexif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9886/3771/files/meposinularepadori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5390/6080/files/fazifamonisogapagowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/behringer_x_touch_manual.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_off00006071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6071 5276 bytes
SHA-256: 91bd1fd58ba69812fc5262db9d213255f4606bae3bd5b43312c1509aaed99cad
font_01_sfnt_off00007241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 9524 bytes
SHA-256: 4113863cfc5fe48ac1d68bb5e79092062f4a1f177ae9f76671c9e35b65fc510c

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