Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbcae10a7fe1ff13…

MALICIOUS

PDF

32.6 KB Created: 2020-08-24 17:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3764b7c4354307da306704bf95bc46d6 SHA-1: c258650fb4bae56c12c44564642ead8fa8b06de9 SHA-256: fbcae10a7fe1ff139842859c25f0b359162765eafb3d5e2382386b509b9305d5
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources. The primary malicious URL identified is https://ttraff.cc/pify?keyword=cinta+laura+video, which is likely used to funnel victims to further malicious sites.

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=cinta+laura+video In PDF document text
    • http://mojadur.bateselectricutah.com/uploads/1/3/1/6/131606490/7506443.pdfIn PDF document text
    • http://files.boutiquetatin.com/uploads/1/3/1/4/131438510/3392112.pdfIn PDF document text
    • http://files.lookassessment.net/uploads/1/3/0/7/130775953/c75ecc6247c.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/1/0434/8336/5528/files/59231314517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/laws_by_plato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3658/0757/files/87452653388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/dadositixupaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4263/4917/files/admonishing_ray_pathfinder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/sosovijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2306/4488/files/15922572490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11411440246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/waruwuxabasuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5000/0796/files/hp_laserjet_1320_manual.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 3

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_off0000444a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x444A 4608 bytes
SHA-256: 269f19ee62587d5a7d1b6705409e23ad74517b67ce661611af463d0c6bb59b97
font_01_sfnt_off000053f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F6 9924 bytes
SHA-256: b414f35844bb60fb528452441b7eedba9cc795c268f8aa1a77590620eb9a6c17

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