Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f778ceb8401aefe…

MALICIOUS

PDF

52.6 KB Created: 2021-02-11 07:42:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 03567f23f552758c21da3cf933eeb26b SHA-1: ecf99f569e7de86ecc9278432c5a5bce4882d713 SHA-256: 8f778ceb8401aefe31f13a09238a9f41300456336ca3a5c1f23ba83aeae4cc47
74 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains heuristics indicating it is malicious and uses an image lure to redirect users to a suspicious URL. The document body, though heavily obfuscated, appears to be related to design templates, reinforcing the lure. The primary IOC is the redirector URL, which is likely used to serve a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7590

Heuristics 3

  • 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
  • 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://baarspo.ru/aws?utm_term=business+cards+design+templates+free PDF link annotation
    • http://lovelyhouse.online/gimizimaboveksjsro.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/pPzSsja/80529370062.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/caucasia_bookyc87r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480745/normal_5ffff6bd996cc.pdfIn PDF document text
    • https://cdn.sqhk.co/tijatabov/Rig1gdj/vovanuvezevegerisibowe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487927/normal_5fdc2b1f89fc6.pdfIn PDF document text
    • https://cdn.sqhk.co/nebuwaxisiw/1VghqWV/21303265648.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413718/normal_601d01e8067c5.pdfIn PDF document text
    • https://cdn.sqhk.co/paleguvebo/jy4gdgi/lebanedesitubofixunizaku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412900/normal_6015aad817c12.pdfIn PDF document text
    • http://lujuxug.epizy.com/basic_english_worksheets_for_adults.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/can_t_believe_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/asrock_h310m-_hdv_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/bcg_ka_full_form_kya_hota_hai.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/chino_c019_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/99856416257.pdfIn PDF document text

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