Malicious PDF — malware analysis report

Static analysis result for SHA-256 af708ce9807e6f57…

MALICIOUS

PDF

47.6 KB Created: 2020-08-10 23:46:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ffae29559592db82a744244d97ca9cc SHA-1: 8b748302fc43541d29e825568ede1246fa27ca7f SHA-256: af708ce9807e6f57e077969e91e82c7a8125c1d1ecade548ffe341cf491151a2
202 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or to obscure malicious destinations. The critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates a direct link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=self+attested+income+certificate+pdf'. The SE_DOWNLOAD_BUTTON heuristic further supports a deceptive lure. No scripts were extracted, but the presence of multiple embedded URLs and the redirector link strongly suggest a phishing or social engineering attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=self+attested+income+certificate+pdf In PDF document text
    • http://dutum.hilltoppreschool.org/uploads/1/3/1/1/131164250/lewokasodutixoxa.pdfIn PDF document text
    • http://files.katherinemgjones.com/uploads/1/3/1/3/131384340/nuruwev.pdfIn PDF document text
    • http://zufowapuj.gotothestation.com/uploads/1/3/2/8/132816202/9996251.pdfIn PDF document text
    • http://waxug.creeksideband.com/uploads/1/3/2/6/132696030/binukejujolune.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/1/0432/5857/7046/files/mojudaroguf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8702/6590/files/primal_surge_mtg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0216/6435/files/soxeramiwiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/lorivinosolunitaxubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/pesidatexulofidenuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/kozizevok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4758/2870/files/45878314924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/jixotonavejajokozagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1606/1091/files/sezutuvejokanuminugus.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 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_off00007073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7073 2872 bytes
SHA-256: ea18d12de3b231b305d916e97a9b3fe700a81a38429b6dccd25d7533a54d13f8
font_01_sfnt_off00007aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AAF 5404 bytes
SHA-256: e5b378678f43707717497d8d408abed70b22684eafebea3f2a0af60fdf430e4d
font_02_sfnt_off00008cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CEF 11020 bytes
SHA-256: e4ea1f3709d7a46af70ad2b7c8629c5cd1acb698c3e75faed0d209cab0540402

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