Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f9c05b9e8a02c46…

MALICIOUS

PDF

46.0 KB Created: 2020-08-13 08:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 007cac45975102350754936f0b72fb47 SHA-1: 64b8700f9832f67bb110b2a2b7d3a75991a0ec04 SHA-256: 5f9c05b9e8a02c46b9b5d8dbf63f8043bef257cfddbfa3fe47c2f189c8368f04
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads but redirect to malicious infrastructure, specifically identified as a redirector for SEO-based phishing. The embedded URLs and the document body's deceptive content strongly indicate a phishing attempt disguised as a syllabus download. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=ssc%20geography%20syllabus%202019%20pdf%20download In PDF document text
    • http://wabegeg.jacobsones.com/uploads/1/3/2/7/132740214/mafox.pdfIn PDF document text
    • http://files.dceoralhistoryproject.org/uploads/1/3/1/3/131383318/170aad3.pdfIn PDF document text
    • http://files.ajmsphotography.com/uploads/1/3/0/8/130815228/2bb7ee9.pdfIn PDF document text
    • http://timifisov.sbtravelbureau.com/uploads/1/3/2/6/132681737/2202750.pdfIn PDF document text
    • http://files.monroecountykychamber.com/uploads/1/3/0/8/130814124/pegumeviko_lovijovotugus.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/1/0433/2149/1621/files/fazabibovamakiful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2154/1274/files/gojowupopozotikuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/56443496609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/62238520376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/sizifagolibur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kofuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7827/7527/files/stages_of_academic_writing_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/mepafevunomarinalaxupuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bamizubonofosexewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31240515614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0780/1504/files/78512529215.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_off00006c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C50 6336 bytes
SHA-256: 16debea5c2f45eed4a40450af7d852420d0d23832dd4a0bc61fbb8026fa74160
font_01_sfnt_off000081d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D8 12924 bytes
SHA-256: fb69aee2224beb11ebff3fea86ec95324499f166a7ef0e968ceb448d912fbe58

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