Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9079f50da5a5248…

MALICIOUS

PDF

50.6 KB Created: 2020-08-28 04:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea91c840328b23bde77ca98976fd1eb9 SHA-1: f11c9ccb546f3a121e1c6211a883e516d84eda96 SHA-256: d9079f50da5a52487ef7696db18dc19db6d2dba4041e7c154fe9538ed972fbef
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the text 'Tulum travel guide 2018' and the malicious URL, suggesting a lure to entice users to click. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

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=tulum+travel+guide+2018 In PDF document text
    • http://files.raresilentfilms.com/uploads/1/3/0/7/130740298/8765908.pdfIn PDF document text
    • http://wosidowux.earthrockstone.com/uploads/1/3/1/3/131379477/4047314.pdfIn PDF document text
    • http://vojig.catchacomamarina.com/uploads/1/3/1/3/131383791/4575822.pdfIn PDF document text
    • http://files.busylilbeefloral.com/uploads/1/3/1/6/131606346/9a9f3b.pdfIn PDF document text
    • http://tonije.mombabymelts.com/uploads/1/3/2/6/132681352/d1a8d516c2.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/1/0439/1947/4856/files/ejercicios_de_enlaces_ionicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9409/7576/files/cassandra_clare_livros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0839/3122/files/49658211912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8442/1022/files/69814494769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xiguxalenagidofivixonagez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8181/0595/files/brochure_sample_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/paper_chromatography_lab_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3842/5767/files/accord_piano_facile.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7333 5496 bytes
SHA-256: af3262d47821002f86085cc15234119542f526669c908e3b8a7fb5361b068cc7
font_01_sfnt_off000085cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CF 10192 bytes
SHA-256: 30c602abb7acd3f8b0bfd9be880994ab4aed812a29e0915c99b8d5cc85a9434d
font_02_sfnt_off0000a8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8E5 16036 bytes
SHA-256: ffcc099cb313ee7442755751e66ee5b466d1c2ae3a5aa4db1c7e493352985176

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