Malicious PDF — malware analysis report

Static analysis result for SHA-256 6be57ef7e425a0fe…

MALICIOUS

PDF

42.5 KB Created: 2020-08-20 02:43:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa73055e5db3df29b63a2cda081f6416 SHA-1: 0a4560de6838aba355843b0e73cb4ed159d3a337 SHA-256: 6be57ef7e425a0fe830a0bbd10c5524ad1e3328de1238f42a51d05c57ecf3acf
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.com/pify?keyword=overtime+request+form+428'. The document also exhibits characteristics of an SEO link farm, with numerous links pointing to PDF files hosted on Shopify. The ML classifier strongly flagged this PDF as malicious, and the presence of a fake invoice lure further supports a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.com/pify?keyword=overtime+request+form+428 In PDF document text
    • http://files.muellerhomeenvironment.com/uploads/1/3/1/6/131607103/c4118120827f703.pdfIn PDF document text
    • http://files.gobo-projector.eu/uploads/1/3/0/8/130874631/8935488.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/1/0435/5063/8241/files/gilgo_surf_cam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/40532730035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6508/8936/files/lezuwusigitonukuterupav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/wirumoxaraf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8122/7672/files/2345411488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6966/8517/files/10247804405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8339/7275/files/diablo_1_belzebub_warrior_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0718/6843/files/bodybuilding_workout_chart_with_images.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_off00006a93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A93 5296 bytes
SHA-256: 22ae819b0d0f7b9cfd29852e66b21cece2cd69dde397ea6f5959cb6855dc6f9b
font_01_sfnt_off00007c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9E 9596 bytes
SHA-256: dbbda4050fe67f815ae219c5a9d38895dc3b82e4b43df826239eaf634409a7fd

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