Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ef9a01d8fb76f6b…

MALICIOUS

PDF

38.9 KB Created: 2021-02-11 08:41:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 576b45dc76cce3fab40b0ed99707d952 SHA-1: 309a9574c76c850b35afe1ebac45d84d334ed6c6 SHA-256: 4ef9a01d8fb76f6be2a1c094a2ebaae3c4d2014132de7b0fbad9edd507e51162
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. It contains an image-only interface with a clickable action, directing users to external URLs. The presence of numerous external links suggests a link farm designed to redirect users, likely to a phishing site or for further malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7452

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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 38 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://jottigo.ru/aws?utm_term=adventure+island+2+nes+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4380088/normal_5fd06530f0904.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408170/normal_5fe0b7b063850.pdfIn PDF document text
    • http://saxefitipar.iblogger.org/e_reporting_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459926/normal_5fca913eec6ec.pdfIn PDF document text
    • https://pasetesosetoje.weebly.com/uploads/1/3/0/7/130775590/abe65b4.pdfIn PDF document text
    • https://zimavilagapiwe.weebly.com/uploads/1/3/2/7/132712623/3665027.pdfIn PDF document text
    • https://wisetigu.weebly.com/uploads/1/3/4/3/134357320/vovexaxasoreran.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405440/normal_5ffb56e9c4444.pdfIn PDF document text
    • https://cdn.sqhk.co/kevapaboxer/cdEihih/truck_simulator_europe_2_game_download_uptodown.pdfIn PDF document text
    • https://fiwirozubaxezu.weebly.com/uploads/1/3/4/6/134659856/1632051.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464720/normal_600773e9209f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424040/normal_60199135ba6c3.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/M49hcia/loophole_meaning_urban.pdfIn PDF document text
    • https://cdn.sqhk.co/kogeledewafo/iidW2c3/dragon_quest_of_the_stars_super_vocations.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464732/normal_6017fcc499e73.pdfIn PDF document text
    • https://cdn.sqhk.coIn PDF document text