Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb65eb3b0d93e85…

MALICIOUS

PDF

33.7 KB Created: 2020-08-12 02:29:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b2a3320b76d06890c08b60710d7ba24 SHA-1: f604dc0ffa6d11176900047244893159eb72321b SHA-256: ceb65eb3b0d93e859cdace7436e0958a0ad0384c105781f994ef53e8c3716f7f
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=mathematical+physics+by+satya+prakash+pdf', suggesting a lure to a malicious site. The presence of a link farm further indicates an attempt to distribute malicious content or SEO spam. No scripts were extracted from this sample.

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=mathematical+physics+by+satya+prakash+pdf In PDF document text
    • http://kejinu.myoptique2020.com/uploads/1/3/1/6/131637896/rexegemevujejirezu.pdfIn PDF document text
    • http://files.coljonesswimhurstville.com.au/uploads/1/3/2/7/132741181/9628755.pdfIn PDF document text
    • http://files.sccavanners.com/uploads/1/3/1/4/131454352/jakipoji.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/1/0433/2853/6731/files/24164999168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0373/9294/files/60868006088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/fogijumilujugujilomase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/navonoxorag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9614/6074/files/bluetooth_module_hc_05.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0029/8648/files/64346693324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/epidemiology_biostatistics_and_preventive_medicine_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2152/3349/files/combiner_plusieurs_en_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/katuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/10405781606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8706/0378/files/certificat_de_cession_de_vhicule_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/6209173835.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_off0000459b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x459B 5704 bytes
SHA-256: ddc71f2e58bbd504889365c8281ebc92ca5e35c6a70b9e4dc2240f3d6d763495
font_01_sfnt_off000058e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58E4 9636 bytes
SHA-256: 51191596b55a4b8f47c4fb874e74d213373b53c41101f450f0112ddbe46bc35a

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