Malicious PDF — malware analysis report

Static analysis result for SHA-256 43ed6ff10c9fedcf…

MALICIOUS

PDF

152.0 KB Created: 2020-08-01 04:06:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03f8383d3e5a31984ac971b42c0963cb SHA-1: 100cf15d9ac6a9972e4bdbf948a69474d63113b9 SHA-256: 43ed6ff10c9fedcfef86f28beca955c1d5c12105276275992832e3a485a3b845
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.cc/pify?keyword=utility+belt+gungeon', is the primary indicator of malicious intent. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same URL, reinforcing the redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=utility+belt+gungeon In PDF document text
    • http://files.leabellablogs.com/uploads/1/3/0/7/130775888/jufilozemomugase.pdfIn PDF document text
    • http://files.casagracie.com/uploads/1/3/1/4/131407572/ronupalokudodot.pdfIn PDF document text
    • http://files.farmersxchangefeeds.com/uploads/1/3/1/3/131398182/wapuxibop.pdfIn PDF document text
    • http://files.shadesofdenimaus.com/uploads/1/3/2/6/132681579/cfc898.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/1/0433/0687/7080/files/xikidewutuxazumal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/nobanutekewuzew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/64608254964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6226/2936/files/diwowotekukowegimulogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/wigekesib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6801/2182/files/62425721670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7848/3097/files/56967018587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/guvow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6879/1713/files/timuxuwuwifana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3488/5792/files/21494120885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4726/3128/files/12840774611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/19546713020.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_off00021238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21238 4604 bytes
SHA-256: 940d5bd2eee8bbe923874c85f8b322a1f7206d9b60243b60297eb79e06f7de49
font_01_sfnt_off00022209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22209 15168 bytes
SHA-256: 52b320eb3726313de040360373c3bd51a617a9e0b7f5a06843d68537daed0dab

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