Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d0f7729aa8a29a…

MALICIOUS

PDF

75.2 KB Created: 2020-11-10 22:02:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2c0d6b5d4563ed30e98792fe422eaaa0 SHA-1: cd5db59c516c49f50d2c887494490016ab2fe455 SHA-256: c0d0f7729aa8a29a2f9526642a3f49f561521059c9821c5c73da1d65e72433aa
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many pointing to an SEO redirector disguised as free downloads for popular media. The primary redirector URL is `https://traffnew.ru/aws?keyword=my+hero+academia+season+1+episode+11+sub`, which is likely used to host phishing content or distribute further malware. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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.
  • 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://traffnew.ru/aws?keyword=my+hero+academia+season+1+episode+11+sub PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369168/normal_5f91d0ca77160.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375503/normal_5f8d9abb5be92.pdfIn PDF document text
    • https://lekekupoj.weebly.com/uploads/1/3/4/5/134513515/faa4f92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_5f974e07668b8.pdfIn PDF document text
    • https://luxovifawus.weebly.com/uploads/1/3/4/3/134341193/c322acbc8931e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bivanud/sniper_assassin_4_code.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/welulunuwunobilopavojub.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/zasozupep.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/real-life_discipleship_training_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/mitchell_high_school_nsw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e306c7a3-9d50-445b-b9c6-abbc0cde933e/fairytale_i_-_growing_pains_quick_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/62334426522.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBCF 4424 bytes
SHA-256: 9fe5b748f12da8656599bc2923a51e5ca7234a8403e77984140d5d275e169604
font_01_sfnt_off0000cb69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB69 5580 bytes
SHA-256: 46138406b23f8ad946f09d7b856fc7e5b43b8a4157ce8bc749babb2a32c47db2
font_02_sfnt_off0000de46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE46 10508 bytes
SHA-256: ddd88996f56ba96fcf581de00cd454682df2f0194006e7a9e20d841ca2e7b35e
font_03_sfnt_off0001023d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1023D 18504 bytes
SHA-256: 9c1f7ee0bf7f0f5fae926554bc542f0021098ad4c57507aa0453af3ff8b5c21f

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