Malicious PDF — malware analysis report

Static analysis result for SHA-256 092e09b7689d90a9…

MALICIOUS

PDF

45.3 KB Created: 2020-08-25 01:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 412f1a789b61e216a8e90fa9094f403c SHA-1: d0874c039180a022005fdf6a5b13a84b6cfe1796 SHA-256: 092e09b7689d90a9a082d1f0227a36fba04893bd42911c707b1360114248eb19
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to a redirector service known to host malicious content. The document body and embedded links suggest a lure for free downloads or information, which is a common tactic for phishing and malware distribution. The ML classifier strongly indicated maliciousness, supporting the heuristic findings.

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=cheatsheet+ggplot2+r+studio In PDF document text
    • http://fetujog.simhaco.org/uploads/1/3/2/8/132816202/48dc961a78cd6fa.pdfIn PDF document text
    • http://files.foodfightdenver.com/uploads/1/3/1/4/131437601/312e7f0e.pdfIn PDF document text
    • http://files.y4kc.org/uploads/1/3/2/7/132740804/muginil.pdfIn PDF document text
    • http://rekuver.stevesilkroad.com/uploads/1/3/0/7/130739629/ec1088.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/1/0439/2134/2619/files/love_yourself_answer_album_l_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/19910539768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8927/8616/files/beatles_blackbird_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9120/files/difference_between_gate_valve_and_ball_valve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5197/4818/files/borges_das_aleph.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3920/1192/files/blossom_of_the_savannah_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/wondershare_filmora_free_full_version_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/ribevuxotetojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6183/0037/files/pelovako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5690/6911/files/26508913705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/2015_chevy_cruze_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 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_off00006745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6745 5260 bytes
SHA-256: 49f6654007af43ff31b44d07fba4e20ae4b810bee090fca116fd68009ea8f6cc
font_01_sfnt_off00007920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7920 15040 bytes
SHA-256: c77a94f3793367569bb1908f53a32b7b297aa01add70afbc1f5be4e85fefd3df

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