Malicious PDF — malware analysis report

Static analysis result for SHA-256 245d986714081cdf…

MALICIOUS

PDF

74.2 KB Created: 2020-08-27 14:02:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a0fa21ccb2e8354df67f93858a30b31 SHA-1: 8f638887f9393153cd154ce83d545feabfa6917e SHA-256: 245d986714081cdf2a493328e16372984c3b6d57662c84e0ecc63004ac0b2ae4
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=saint+seiya+manga+online', indicating a lure to this malicious site. The 'PDF_SEO_LINK_FARM' heuristic also indicates the presence of numerous external links, suggesting a broader campaign to distribute malicious content.

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/pify?keyword=saint+seiya+manga+online In PDF document text
    • http://files.frontlinemissionsa.org/uploads/1/3/1/3/131398145/7aac16b3.pdfIn PDF document text
    • http://files.vibrant-energies.com/uploads/1/3/0/8/130873907/nomadu.pdfIn PDF document text
    • http://mojurar.harperraephotography.com/uploads/1/3/1/6/131606218/7045627.pdfIn PDF document text
    • http://gupeb.ktfhomes.com/uploads/1/3/1/4/131438800/1737676.pdfIn PDF document text
    • http://files.mr-maldonado.com/uploads/1/3/2/6/132682124/8003337.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/1/0433/0687/7080/files/dipipopiluniwewikojidil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5286/6467/files/menace_d_accouchement_prmatur_cours.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/5420713787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/japoxotoruzub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5251/4979/files/crystal_reports_visual_studio_2013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/5569430642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8656/0936/files/dualism_vs_materialism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/critical_discourse_analysis_theory_and_interdisciplinarity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9526/8264/files/algebra_expanding_and_factorising_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8441/5143/files/79158836416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/simple_and_compound_interest_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/18734980711.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00009865.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9865 20272 bytes
SHA-256: 13ea319105070f7f25ec5bfabdc95c75ca6cfaf831e65cb7494b31f6dff8ba5e
font_01_sfnt_off0000d940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD940 5116 bytes
SHA-256: 3affbe390290c72f71b1777b5755ab4c964870f04138c704be953f24645ac193
font_02_sfnt_off0000ea95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA95 15720 bytes
SHA-256: 006e7952f5bead82b95d46232233cb887ce863ef34732f588ae10e417f32f9f4