Malicious PDF — malware analysis report

Static analysis result for SHA-256 3de0741b8cf5e4c8…

MALICIOUS

PDF

33.2 KB Created: 2020-08-21 16:10:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12747a00b7e55e20e51e32d92033a857 SHA-1: 6ab7847cc55473231c9d98775fe3769a06cfba80 SHA-256: 3de0741b8cf5e4c85e9144662bf90ac93e23c76809d0bea14554f57333b8f949
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure to disguise the malicious redirection. The ML classifier also strongly indicated maliciousness.

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=persona+5+confidant+guide+gamefaqs In PDF document text
    • http://files.rockinghamsixties.com/uploads/1/3/1/6/131606818/zeraniteludovozi.pdfIn PDF document text
    • http://files.ofiar.org/uploads/1/3/1/8/131856380/27f72542.pdfIn PDF document text
    • http://files.localgreenssb.com/uploads/1/3/0/7/130738921/5445384.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/1/0432/0156/0737/files/brazil_national_football_team_uniform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/calgary_lrt_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2590/7368/files/gipajajoduka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9453/9429/files/inverted_spire_nightfall.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/gibegivinalubefatojowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5454/6590/files/50535018632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1519/0181/files/honeywell_pro3000_access_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/tipupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/74398365377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5095/7974/files/rurunenuvutapakawezor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/sojopomaxabibanajokuleba.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 5

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_off00004442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4442 5560 bytes
SHA-256: 4c7c11614f741dddcaa3e112d70db7753f142cb28016b339565d30736226e296
font_01_sfnt_off0000570a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x570A 9680 bytes
SHA-256: fba5ba024d893b8d6bb4f5e5ddd4bbb0302d5a46208fb37075c29882668ad700

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