Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f07fbd2ae5e0551…

MALICIOUS

PDF

40.7 KB Created: 2020-09-09 20:53:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff048c5ba09f1802a8b5689f9432ece1 SHA-1: bf2efd175cd9c04918ec1db8c739a5859e05fe60 SHA-256: 4f07fbd2ae5e0551593e7590c25148255cbce930d1786a8c133e7d8f6b59ba9b
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, masquerading as a "Powerpoint presentation format" to entice users. One of the primary links directs to a known malicious redirector infrastructure, suggesting an attempt to lead the user to a malicious site or download. No scripts were extracted, limiting the analysis to the document's structure and embedded links.

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.link/pify?keyword=powerpoint+presentation+format In PDF document text
    • http://files.artchaucer.com/uploads/1/3/2/7/132710601/bezox-papep-bosexesokuxuwus-kijetese.pdfIn PDF document text
    • http://files.wxrringtxn.com/uploads/1/3/0/8/130813054/xevewumimoz.pdfIn PDF document text
    • http://zokanisu.tingsrydsbrukshundklubb.com/uploads/1/3/0/8/130814017/6508082.pdfIn PDF document text
    • http://bizoz.steveellisworld.com/uploads/1/3/0/8/130814328/4639580.pdfIn PDF document text
    • http://files.thedougmargroup.com/uploads/1/3/0/7/130739704/850bbf4e8beb008.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/1/0431/1531/5351/files/historia_de_la_biotecnologia_vegetal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3983/4791/files/rolidopovujapogufejizomar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6092/8405/files/80745832597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/karepabokexipibalunaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/dasuzizariwigok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6097/6021/files/zeph_daniel_spreaker.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/81d6a4_ed33242d9f544349bc11cc7b67c63f6e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/868f76_2b0eec10ae574db58582232327889303.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/185c00_7d970622e7bb48ef872c2054b1c09ac5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_de70664321e94bd5ae1b2183916fa764.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3615fb_09f6301547534e138de552e7603fcdad.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_off000062ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AD 5108 bytes
SHA-256: 8a1b3baab309781ff98f4ad01bc2f72b1362ff96e5e6957389885c3939dca9f9
font_01_sfnt_off00007409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7409 9820 bytes
SHA-256: 084d64f1403be81cd04927fa7d4f8c175a5fc8a44c89ad0dee909863c1f81fc0

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