Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f952e642a18adaf…

MALICIOUS

PDF

44.4 KB Created: 2020-08-13 17:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fdd8ac7c767886782b234195acdfc44 SHA-1: 21f3fc96db2f20453f376bd6e59f9c261e2d7f89 SHA-256: 0f952e642a18adaf1814b385f5b87d6da7ecb3bbd4aac2affb05255b24e1dc89
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a search result for an academic textbook, aiming to trick users into downloading other PDFs. The heuristic firings indicate the PDF is designed as a link farm to known malicious redirector infrastructure. While no scripts were extracted, the embedded URLs and the PDF structure suggest a phishing or social engineering attack.

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/wb?keyword=electrodynamics%20jackson%203rd%20edition%20pdf In PDF document text
    • http://files.jwfworld.net/uploads/1/3/1/4/131406269/fikevisepomavevo.pdfIn PDF document text
    • http://miregarit.myhighlandcreek.org/uploads/1/3/0/7/130739038/7576340.pdfIn PDF document text
    • http://files.manateeconcertband.org/uploads/1/3/0/7/130739693/nemifoxekilule.pdfIn PDF document text
    • http://zuses.saturnrinanewburnmedportfolio.com/uploads/1/3/1/1/131163651/8410004.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/1/0429/8512/8090/files/monanemulupoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9181/1734/files/git_bash_permission_denied.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6690/9081/files/peruki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4245/6231/files/describing_personality.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/92226474084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3011/7542/files/change_to_word_document_for_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2018/0894/files/niluti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1485/6610/files/agreement_termination_letter_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0209/files/cell_cycle_and_cell_growth_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/jazajegixinubutox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0636/0730/files/bukip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/88694658711.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_off00006d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D06 5664 bytes
SHA-256: f93cabf076d3f5eb326b85f1a2053bea56bfa44526cbcbadaec34f29565a0eb6
font_01_sfnt_off0000804d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x804D 10772 bytes
SHA-256: 40495520824dbf9f8491daa82cbf7b4bf0052d4113d6252ba8c09a74aa1b4beb

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