Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c7d8a233308475d…

MALICIOUS

PDF

63.2 KB Created: 2020-08-21 21:12:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5560d71565f19c8728a9175323f66604 SHA-1: 61a7f8c0e9db3d08b96979f396c0fe72b414fa8c SHA-256: 1c7d8a233308475d0f8f1cb7966a35d6757fd0918319f5aff455f222434aaee5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=java+netbeans+ide+8.+2+free'. This URL is presented within the document body, disguised as a link for downloading 'Java netbeans ide 8. 2 free'. The file also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious IOC is the redirector URL.

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=java+netbeans+ide+8.+2+free In PDF document text
    • http://files.heroesruel.com/uploads/1/3/1/4/131408970/6110137.pdfIn PDF document text
    • http://files.aprenderyaonline.com/uploads/1/3/0/7/130775446/wukibimutatubes_jupimixuzura_wupisake_ritiwotatemilu.pdfIn PDF document text
    • http://doduvaneb.owencountyfair.com/uploads/1/3/1/6/131636612/pifedas_nimod.pdfIn PDF document text
    • http://junurix.michelle-owens.com/uploads/1/3/1/3/131398140/jizivafozavetetameni.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/1/0431/0879/4525/files/mechanical_reasoning_test_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8638/0197/files/final_fantasy_crystal_chronicles_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/zamopiximebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3799/3629/files/nature_brochure_template_illustrator_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9607/0560/files/resikifexav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/47756327055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/diccionario_de_armando_hoyos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2601/4630/files/30916370370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/39610270317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/46964734359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3345/1926/files/5287998737.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 4

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_off0000b1c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C2 5416 bytes
SHA-256: 32a6f45fc62fc9193c87400f806cce7a65792c49816a4049830d5bc79607a40e
font_01_sfnt_off0000c441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC441 13532 bytes
SHA-256: e9a54ca44ecb0c98081eba60d5c21a6c1eff5d62b50103df55be93210e74a01b

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