Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0ef6e6bfdcaed86…

MALICIOUS

PDF

34.5 KB Created: 2020-08-10 06:23:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e2b19094f8f4e3a094a9b6238269951 SHA-1: a2cba5cf1d27a23996b88d828f144844a86673f7 SHA-256: b0ef6e6bfdcaed8695f57ffd45a6d15790af5a4361580a6665ec58438dd949ef
202 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body itself contains the redirector URL, suggesting a phishing or malware distribution lure. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=atlas+world+map+pdf+free+download In PDF document text
    • http://navifak.jadybates.com/uploads/1/3/1/4/131407406/6886877.pdfIn PDF document text
    • http://files.northamptonpfo.com/uploads/1/3/2/3/132303175/xulodobab_jagulemavilan_melenelot.pdfIn PDF document text
    • http://jasajilek.yogadansebienetre.com/uploads/1/3/1/3/131383791/06dff6eab6f2.pdfIn PDF document text
    • http://rejupis.pickawaychiro.com/uploads/1/3/1/6/131607600/robubelumuzusitafa.pdfIn PDF document text
    • http://files.monkeymadnessfunbus.co.uk/uploads/1/3/0/8/130874298/4597045.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/1/0437/3191/0821/files/list_of_justice_league_episodes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7947/6134/files/chuyn_file_b_li_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1553/5774/files/kudanadorutibokopudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/69504859498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/rawupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/pinuzabawurisatorusojuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2166/files/autobiographical_elements_in_the_novel_mill_on_the_floss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/9107466436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/xuges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/12588135781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3626/9983/files/delegation_of_authority_in_management.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 6

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_off000049da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49DA 5268 bytes
SHA-256: 804ef4ce4d6f03be20e9ced462f033127ee911c26513dcacf1e62107bdab0ff7
font_01_sfnt_off00005bbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBE 9704 bytes
SHA-256: 3bd755433cda8e3f2ef0bd7119773027d11bd0b090c9fe3fc67c3b26592d869d

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