Malicious PDF — malware analysis report

Static analysis result for SHA-256 c288486f89cf9491…

MALICIOUS

PDF

57.2 KB Created: 2020-08-11 04:20:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c945c1d0ef4148e7d108adef596e2330 SHA-1: b09c4cd324503d11ee4ef5d4cd0eb65fd7042b84 SHA-256: c288486f89cf94914b669d6818018d288505950eeebff0946d7d219a8bc33715
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=abdomen+agudo+cirugia+pediatrica+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful 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.com/pify?keyword=abdomen+agudo+cirugia+pediatrica+pdf In PDF document text
    • http://files.bookcellarlwonline.com/uploads/1/3/1/8/131860787/xejapami.pdfIn PDF document text
    • http://files.julieharbersceramics.com/uploads/1/3/0/7/130739401/7023199.pdfIn PDF document text
    • http://files.euroforestireland.ie/uploads/1/3/2/7/132712139/viregoji-vikeluzavagates.pdfIn PDF document text
    • http://files.sparkrentals.ca/uploads/1/3/1/8/131856392/2258671.pdfIn PDF document text
    • http://files.orderlypackrat.com/uploads/1/3/1/6/131606688/kibaleduw.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/1/0436/2112/2211/files/zalenulakelizisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7983/5547/files/regiwopokowanelupema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/gatiwoxeveme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2270/4030/files/50177691141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5883/9203/files/gemasagorewitukiweso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9074/5246/files/scapula_bone_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/allahabad_high_court_judgement_order_copy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/motizupaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0211/6772/files/livawupuwap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6258/2693/files/55661354752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/46704414312.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_off00009fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FE9 5392 bytes
SHA-256: 10cb19b3ed232db23c773c5b5208c5c76734b6fedeb30e87ddda35ab7a923775
font_01_sfnt_off0000b22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB22A 11184 bytes
SHA-256: d3f337f881cdb4712580e665f93e642fa94846e6b69d6de42e6cfe40dbf49ba4

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