Malicious PDF — malware analysis report

Static analysis result for SHA-256 db7d9de718100598…

MALICIOUS

PDF

50.7 KB Created: 2020-08-13 23:52:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 159c1e7c283e1e972ecf347c7070acfa SHA-1: 1b85bfb536da1e6ed699bbc0846005fef93a7a29 SHA-256: db7d9de7181005987438ab962bc1384dc6713837c4bd05f01d0c9fa2e62da2ce
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, disguised as a movie download. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs suggests an attempt to direct the user to malicious infrastructure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.com/pify?keyword=maurice+1987+full+movie In PDF document text
    • http://buxot.spinna.org/uploads/1/3/0/7/130739826/3223263.pdfIn PDF document text
    • http://files.shoppalomaclothing.com/uploads/1/3/1/4/131453560/7488cfe.pdfIn PDF document text
    • http://jogut.finnegansfieldsgypsyhorses.com/uploads/1/3/0/7/130775818/8705483.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/1/0432/9648/9632/files/anna_karenina_in_bengali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/69112879463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1646/1211/files/lajobitiretutexonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0689/1931/files/physics_of_atoms_and_molecules_bransden_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/27210550623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7379/7285/files/99416418634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1072/6815/files/sanoriruzaxezimoxabite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/rasukuxafuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8279/0552/files/fuzam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2245/files/nolumok.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 4

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_off0000876a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x876A 5396 bytes
SHA-256: 49af17c42e8efb2dc93141edeb997847ece83a87339f589bce3d92ba8870c4f6
font_01_sfnt_off000099cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99CC 10616 bytes
SHA-256: 9c907595ae44180a93a9651f5a76805b685bf21ae4ab9ff3606df6b00021406a

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