Malicious PDF — malware analysis report

Static analysis result for SHA-256 b23a8e09784be334…

MALICIOUS

PDF

42.4 KB Created: 2020-08-28 15:39:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4e8e1f5047407a993cf51c9dd3b6231 SHA-1: 9542b89d7571be678d365cda1a5dc041b5e245f2 SHA-256: b23a8e09784be334de22f167a908b629bc0f368c54a5f6cffa07c412beae0fac
194 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a malicious URL, disguised with text related to a 'john deere 4045' manual. This indicates a social engineering attempt to trick the user into visiting a potentially harmful site. The ML classifier strongly supports the malicious nature of this PDF.

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=manual+de+parts+motor+john+deere+4045 In PDF document text
    • http://makin.dmv911locksmith.com/uploads/1/3/0/7/130775734/5f64d9f0cf.pdfIn PDF document text
    • http://files.batterseamirroremporium.co.uk/uploads/1/3/2/7/132741397/namudelunero.pdfIn PDF document text
    • http://files.thewallssager.com/uploads/1/3/0/8/130874058/rojupi.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/1/0432/8187/5104/files/sunafawaforenisiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7777/9100/files/7289448911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/sigojopezagipulixosapesab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/91486218108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/scales_and_arpeggios_violin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8071/2346/files/95294264170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9585/8088/files/67081692772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/irenaean_theodicy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/renelataxebafufolazut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/naxozezozatobudewuxonigod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/ap_state_budget_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0671/2219/files/accounting_transactions_practice_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9650/6521/files/15359503871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8807/files/xanitezivigajiraporug.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_off00005790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5790 5636 bytes
SHA-256: 56937325beb99e76816224ecb7f84db8eecf81778cf237864137101632962903
font_01_sfnt_off00006a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A97 15400 bytes
SHA-256: b4753bef4d7bec6e454b4475eb3d9c5273415021dc8b6bf1d82eaa0e70d9074c

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