Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dd8362b47e14c78…

MALICIOUS

PDF

42.0 KB Created: 2020-08-12 08:24:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66054e68fc2f6fcc35195cde3cd3178b SHA-1: 91c38784a15c2084d797c9f9be2e23b0bf9f9d22 SHA-256: 4dd8362b47e14c782c7f4caf7be50f5daac4d1e7a7504b8f26212c4e220ef8c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, masquerading as a D&D spell reference. One of these links, 'https://ttraff.ru/pify?keyword=d+d+5e+bard+spells+pdf', points to a known malicious redirector. The document body is heavily obfuscated but contains references to the lure and the malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malware through compromised sites.

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.ru/pify?keyword=d+d+5e+bard+spells+pdf In PDF document text
    • http://pibijaw.christopherkrieg.com/uploads/1/3/1/3/131398368/remunigediforadof.pdfIn PDF document text
    • http://files.alexstudio.bg/uploads/1/3/1/1/131164448/875fbb5e4c12d5.pdfIn PDF document text
    • http://files.barbarafoxart.com/uploads/1/3/1/4/131482941/jerexomudixipexupo.pdfIn PDF document text
    • http://tuwuzek.joshuaduncanartist.com/uploads/1/3/2/6/132681579/gomefare.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/1/0429/5353/9747/files/lowunujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3784/9762/files/lotopolifuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9637/9297/files/understanding_and_using_english_grammar_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/medade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9613/7111/files/cement_all_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8260/4963/files/hand_and_wrist_exercises_for_arthritis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/wozikebajoduwoguzanewova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/40584655938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1549/9939/files/grammar_quiz_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1372/6631/files/fiberosajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/discrete_mathematical_structures_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/74437087964.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_off000066ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AE 5296 bytes
SHA-256: ff5278824f973a9943668a2114841aab17ff137d75b875bc4459cc792514811b
font_01_sfnt_off000078bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BC 10160 bytes
SHA-256: 0069ff2f5f0351031cb3e3a2bcdbd81942259cf19649898c4e0856c2b8dff6e7

Open this report in the interactive analyzer, or submit your own file for analysis.