Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fd004061f8d206c…

MALICIOUS

PDF

48.5 KB Created: 2020-08-15 19:32:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b567f014e7abc5811f6b1d0031ab707 SHA-1: e1e714f20165b31eacd749b81bfd027eb088a8a6 SHA-256: 9fd004061f8d206c54331319ac1c8a1119a6968f2eafb936883fc0d3da4c441e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wb?keyword=duties%20of%20pawnor%20and%20pawnee%20pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains this URL and numerous other links hosted on various domains, suggesting a link farm or SEO poisoning tactic to distribute the malicious payload. The file is generated by wkhtmltopdf, a tool often abused for creating malicious documents.

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/wb?keyword=duties%20of%20pawnor%20and%20pawnee%20pdf In PDF document text
    • http://files.mhes-ses-bandstrings.com/uploads/1/3/2/8/132815791/xejogebujemamex_vekena.pdfIn PDF document text
    • http://files.austin-brady.com/uploads/1/3/0/8/130813988/2625481.pdfIn PDF document text
    • http://wezetewuw.thelakesrace.com/uploads/1/3/1/4/131482975/9677ff.pdfIn PDF document text
    • http://govos.mylenderscott.com/uploads/1/3/2/7/132710601/5789396.pdfIn PDF document text
    • http://files.dominickcarlotti.com/uploads/1/3/0/7/130774977/c7a281.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/besidizatizudit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/lasijetuvafevopepibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1762/3959/files/karowibamujudifit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8068/files/ladef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/dutuxotajorijapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3551/7337/files/list_of_regions_and_provinces_in_the_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7726/1729/files/bharatha_rajyangam_in_telugu_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/73674005176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/79393485890.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 3

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_off00006cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD3 5092 bytes
SHA-256: bb75ed1e79929a47788a9ee6d46a88ed7609faacd1ddf2c494c223c8dea28fff
font_01_sfnt_off00007e47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E47 6044 bytes
SHA-256: e2f765d7de05d0f33f38f7b576aec99c1145b0c5347473ec366e19eca50cc9c6
font_02_sfnt_off000092c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C6 10032 bytes
SHA-256: e3b50229cf191b451836013385bbe5fff34294d03698495066c2e41950c2973f

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