Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a9d531f479b5fa6…

MALICIOUS

PDF

69.6 KB Created: 2020-12-19 12:04:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 03d5eaad157e14e6bdb01120ad694baa SHA-1: e3ede55ca8632f4232fffaa2ffe753b81fba1843 SHA-256: 8a9d531f479b5fa64f3364335a3a83ad02aca46ae10027efa214871eba8b7563
192 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a movie download, which is a common phishing lure. Heuristics indicate the link points to a known malicious redirector infrastructure. The ML classifier also flagged this PDF as malicious, supporting the phishing attack pattern. No scripts were extracted, but the primary IOC is the malicious redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9035

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://ggtraff.ru/aws?utm_term=assassin%2527+s+creed+movie++in+hd In PDF document text
    • https://static.s123-cdn-static.com/uploads/4380876/normal_5fcca00e270ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460045/normal_5fc641003f68c.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82a1e86e-32df-4fde-a664-e80c0c39bf55/sonudumuzagov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/132a894e-32e7-4fe2-82d9-a72e7125707c/boxeluropigakaripob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73e33883-f86c-4861-8b11-06cca2ee628b/fundamentals_of_electric_circuits_6th_edition_solutions_slader.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6082ebff-2f4d-4ca2-9dc2-b585c60fe198/asus_ramcache_iii_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c666116eb00e3c4b5099/t/5fc0e0252dd96f59180fd0c3/1606475822201/genapur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/120354f6-f82a-4754-96aa-62b60f1c8fce/art_van_mattress_sale_black_friday.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f319ab79f442f229e2d8/t/5fcca19ceb18547f4b80032f/1607246238393/xudamonefujidizet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf9b933e-b155-4071-9da4-a196125df685/32642618368.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/zovasisemazijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/105fee2e-c0ff-4ed8-af32-d076f6c64701/66022820132.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc0dbca3-9936-4c21-8c21-175f957d7ce3/lanazuligisobosabaxirituf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20dd9dc3-0228-44bd-97a2-157807340aea/lesson_8.4_skills_practice_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0cf44e5c7695ca99b2c1d/t/5fc0da6918e72e5fdbf74209/1606474346231/how_can_i_delete_a_page_in_google_docs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3712d643-4724-4899-bd71-dcdc51f3dc13/rimojulevinofileluzojudi.pdfIn PDF document text

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