Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccccc3b2b242d777…

MALICIOUS

PDF

35.0 KB Created: 2020-08-25 10:26:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30c13e9f1903203fbe80fe002e9ff66e SHA-1: b9c0b3a6fd74a7fad40275eeae652b35cbed98dc SHA-256: ccccc3b2b242d77711e57ebf524a2ad17317df3ece041b86c010415358c044bd
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm and another flagging a redirector. The primary URL, 'https://ttraff.cc/pify?keyword=apologia+de+socrates+alejandro+vigo+pdf', is identified as a malicious redirector. This suggests the document is designed to lure users to malicious sites through a chain of redirects, likely for phishing or malware distribution.

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=apologia+de+socrates+alejandro+vigo+pdf In PDF document text
    • http://files.smsband.org/uploads/1/3/1/0/131070011/c0197.pdfIn PDF document text
    • http://sosado.marygomes.com/uploads/1/3/2/6/132681393/6536473.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/1/0432/3606/5438/files/master_service_agreement_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3715/files/seziloxosumuzemufokef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5932/2778/files/referencias_bibliograficas_de_un.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/5487/4006/files/far_cry_primal_game_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9050/1020/files/65659121061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/tenancy_contract_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/accounting_information_systems_11th_edition_romney_steinbart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7274/9721/files/benchmarking_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rixaraxamixenapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9375/4009/files/niratogo.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_off00004a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A2A 5448 bytes
SHA-256: 0730fe9cc53652e4d9c677b21dd23ce6abd709b0fc0992c5829b1174bf26f1ea
font_01_sfnt_off00005cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCE 10064 bytes
SHA-256: f8c05db3bec6c985572486882627c3853aaadbddb62a1b5797a328c5976938b5

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