Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dfdacb6d4d74249…

MALICIOUS

PDF

42.3 KB Created: 2020-08-03 19:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 842327ecb92e15efff0236460ec9e4aa SHA-1: edad769f610a4a8af1a0efc6a3cad6875a651a95 SHA-256: 9dfdacb6d4d74249ecdfc87d86e363362cf047d957eb99561f0d52000540bf65
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'illicit financial flows' and the tool 'wkhtmltopdf', suggesting a lure to a malicious site. The presence of a mass external PDF link farm further indicates a malicious intent to distribute content or redirect users.

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=illicit+financial+flows+in+zimbabwe+pdf In PDF document text
    • http://files.pansqip.org/uploads/1/3/2/6/132695568/5115215.pdfIn PDF document text
    • http://files.stdavidssociety.org/uploads/1/3/2/3/132303019/6694979.pdfIn PDF document text
    • http://files.marketmovesmatt.com/uploads/1/3/1/0/131070888/pabevomupibe.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/1/0432/8318/5832/files/wesebupotalizebatigujugaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/57083539065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2725/0850/files/daxurizebetotolez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/siwizobudavegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/26022656630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/dikoxetudeput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3231/9912/files/36309659820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/wowobizutogemeboxagaliju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8364/5599/files/kikisagataxedik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5282/5750/files/29064798272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5366/1864/files/nosilatibugujago.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 6

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_off0000654b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654B 5424 bytes
SHA-256: 2b53639fd09dc2274956687f078d9d052494e9ce91230b8bcb62b39178662ade
font_01_sfnt_off000077c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C8 10776 bytes
SHA-256: dfcc9887ced20d2a559f73105ea31b3390199d3eb512598a8ccd561f87667262

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