Malicious PDF — malware analysis report

Static analysis result for SHA-256 08504d98c4412c62…

MALICIOUS

PDF

44.5 KB Created: 2020-08-10 10:31:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 791a65f82d0282057b6d368cba1ea6ff SHA-1: fe5f26f115ae1a93e6e7265e1c6780d734a38cb0 SHA-256: 08504d98c4412c62cdc488ae09216f3b7ba475d25a8be969e343d33b59690211
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This indicates a phishing attempt disguised as a document download, likely to lead users to malicious content or malware.

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=local+anesthesia+pdf In PDF document text
    • http://kusomit.thoughtfulhorsemanship.net/uploads/1/3/1/4/131482995/9e1859dca112.pdfIn PDF document text
    • http://files.grassriver.org/uploads/1/3/2/7/132740270/buwegegobevakagulido.pdfIn PDF document text
    • http://files.1944becker.com/uploads/1/3/2/6/132680808/vuvamosokesazajiva.pdfIn PDF document text
    • http://files.metersnelectronics.com/uploads/1/3/1/0/131070920/koritumifuligowep.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/1/0430/7920/5013/files/nugimimarolidebirufev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8178/5753/files/5675969577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/85338384443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7315/0869/files/netstumbler_adapter_not_present.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/strategic_brand_management_keller_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9359/0170/files/55762272318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2891/files/33545346938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/2015_honda_rebel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5258/1542/files/strip_whitespace_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/55795117465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81579197248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8549/5453/files/74751368466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.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_off0000711f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x711F 5088 bytes
SHA-256: c3d8e5c02631b947c7d2f410a7bd8576c701ab489de6feb47c8e2ccb66316ff2
font_01_sfnt_off00008275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8275 10224 bytes
SHA-256: 1c5b863dca03c82e9bf4280ddd8a42e84729166ee0d884e51db42bc7f6a17a24

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