Malicious PDF — malware analysis report

Static analysis result for SHA-256 6680266a3e9fb3b1…

MALICIOUS

PDF

39.8 KB Created: 2020-08-28 08:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c3703d052ac8de0b33ab5459c36391b SHA-1: 0a53faa45446f5ce4593222b857e69f429c5eada SHA-256: 6680266a3e9fb3b118cf06e94c5eb635ca63378c5e9c16dacdd804daef3535a2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector service known for hosting malicious content. The primary redirector URL is https://ttraff.com/pify?keyword=biological+anthropology+concepts+and, which is designed to lead users to download further malicious files. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-optimized PDF links suggests a link farm used 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.com/pify?keyword=biological+anthropology+concepts+and In PDF document text
    • http://litepapu.thesovereigntymovement.com/uploads/1/3/1/4/131407005/suwepifitusuv-watimuw-tagemizos.pdfIn PDF document text
    • http://lenodoza.jonesparkview.com/uploads/1/3/0/9/130969699/7654302.pdfIn PDF document text
    • http://files.uniarq.net/uploads/1/3/1/4/131453610/2996340.pdfIn PDF document text
    • http://kedasijaw.travelwithkara.com/uploads/1/3/2/6/132681352/dufuwifipenasus.pdfIn PDF document text
    • http://wiwofogo.rosaferrara.net/uploads/1/3/1/4/131437532/ganajeso.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/1/0431/1131/7658/files/counterfeit_drugs_statistics_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3639/files/vonizewotiwukawobet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4228/2394/files/53908446356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/lidevugekawosigudolezavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1629/8393/files/project_on_polarization_of_light_for_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9886/0707/files/rirukuxokafesaxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80804151078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2655/4781/files/46781030056.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_off00005d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D28 5488 bytes
SHA-256: 184c26a0297e487edc3a44ac5d9cdb8564e2ac3c71a36fc988d38da505401733
font_01_sfnt_off00006fc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC5 10128 bytes
SHA-256: 6b6c71ffa18dec534bf0be157391ce90d9f5c3564891bd680f908694df83d337

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