Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e16dac4fc44c293…

MALICIOUS

PDF

66.7 KB Created: 2020-12-06 17:48:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-09
MD5: 59a657f1b1815af1bb4c70b25f2630ef SHA-1: fe429b87111b945f77cf0cb54d9bdaccfa771199 SHA-256: 5e16dac4fc44c293d9c5ffe93aa20fe1287d05c7aad751a5fc4bfe7a45b74408
221 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/wb?keyword=beddington%20park%20primary%20school%20uniform PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4445890/normal_5fb66cca14282.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472475/normal_5fc922ffceffb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427811/normal_5fb2980f99ca1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393506/normal_5f8faf238cb9c.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/polk_audio_psw505_12_powered_subwoofer_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486523/normal_5fbb9217d6f88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418973/normal_5faae9a746ee0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446638/normal_5fbdd77f7e098.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480735/normal_5fa70bba9e0ff.pdfIn PDF document text
    • https://pobufulali.weebly.com/uploads/1/3/4/4/134494274/fesolabifafatib.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c67a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c67a.bin)
    • https://static1.squarespace.com/static/5fc0eac55bcb0228a2828fa5/t/5fc0fb075147b1480456b88f/1606482695582/asc_605-25_multiple-element_arrangements.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 extracted file (font_00_sfnt_off0000c67a.bin)

Related samples 8

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_off0000c67a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC67A 5784 bytes
SHA-256: 9d92c080fcdf12d4656986a38333c7b5903726a0748437052cb8504dab68078e
font_01_sfnt_off0000da18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA18 10616 bytes
SHA-256: a070386a74485760d5be0d1f1172e08533471046be21e6ad0cb26a79e7ef5fa0

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