Malicious PDF — malware analysis report

Static analysis result for SHA-256 74827b11c65c0d2b…

MALICIOUS

PDF

37.5 KB Created: 2020-08-10 00:28:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe273e63db64989cdd5f6f91e2a5959d SHA-1: 23ed52302b3517c47dd71322e20bf46418ad9ae1 SHA-256: 74827b11c65c0d2b8de197d1fa23561847eb59ae63bbb5f22945d086952f0a15
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate documents, but the primary link redirects to a malicious SEO redirector. This suggests a phishing or scam attempt to lead users to malicious content. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points towards a link farm or redirection strategy.

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=beckett+baseball+april+2020+pdf In PDF document text
    • http://files.workscapeartisans.com/uploads/1/3/2/6/132680986/1281410.pdfIn PDF document text
    • http://wiwalawis.seakapparel.com/uploads/1/3/0/8/130814328/acc4b64102f.pdfIn PDF document text
    • http://wojel.sheawhite.net/uploads/1/3/1/3/131379578/tunekina_ronufezipuse_rapuz.pdfIn PDF document text
    • http://files.westlakehsdance.com/uploads/1/3/2/7/132710694/tupategigaxasibujuw.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/1/0432/8875/6374/files/rebizuwudalobatolefebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7165/8389/files/cambios_psicologicos_en_la_adultez_intermedia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2589/0469/files/70256438609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/kabepiwosugewasok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2658/6520/files/diablo_3_crusader_leveling_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1760/0156/files/bupigikadesire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/andres_oppenheimer_libro_basta_de_historias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/mifevudigefufaxesobobixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7713/1683/files/tenancy_agreement_sample_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/47181848522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/78909103833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/9039736813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8557/5832/files/august_2020_current_affairs_testbook.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_off0000524a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x524A 5676 bytes
SHA-256: c921a54cef017299c83eb1c0cd1b79de2e3db1b28ba0b713b3a7ae419fef7512
font_01_sfnt_off000065a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A6 10440 bytes
SHA-256: 763c8046c10763ec514b1db7e1bc2fb85605bf7bb9fae639f5e3b4c5746de982

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