Malicious PDF — malware analysis report

Static analysis result for SHA-256 980e34d04bae1c80…

MALICIOUS

PDF

43.9 KB Created: 2020-08-27 13:32:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10d544e3fa10a0705bd1a8dc73f848ae SHA-1: f86dacb266bed1e0314f5e921f67672f5148c42e SHA-256: 980e34d04bae1c8096c057cc3f3b3684cd0c1e745665afd731e1dd87cc770b20
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. Another critical heuristic identified a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier also flagged this PDF with high confidence. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a malicious site.

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=lesson+before+dying+chapter+3+summary In PDF document text
    • http://jazif.christierecords.in/uploads/1/3/2/6/132681294/gotolerudakeru-webijak-silifa.pdfIn PDF document text
    • http://genifuf.aliumspiritum.org/uploads/1/3/2/7/132740541/4a13afe246.pdfIn PDF document text
    • http://duwopew.diveststanford.org/uploads/1/3/0/9/130969060/9202873.pdfIn PDF document text
    • http://files.wfgcompass.com/uploads/1/3/2/6/132695571/jirinigefokerazafe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/calendario_2020_colombia_para_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/ahrq_depression_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2812/3545/files/42093133952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/67270128295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/66774848873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9836/6367/files/igcse_biology_past_papers_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0103/6443/files/duriputodimefidotivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5309/4811/files/zobikifawefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0069/1866/files/laruxeduvepipukuwokawe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEB 5768 bytes
SHA-256: ef3446d4cc5694b7704e64be59d99d41581739cafbb9c7be08addf043e385534
font_01_sfnt_off00007260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7260 10024 bytes
SHA-256: b58c509831d6153d3b3da2450e7c7c822d4eaa7ec7992cfe35528e65157738db
font_02_sfnt_off000094a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94A2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

Open this report in the interactive analyzer, or submit your own file for analysis.