Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb3022f2d1a10323…

MALICIOUS

PDF

41.6 KB Created: 2021-02-22 14:55:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2dac4d83bbc8dcdaad0a3090ddd8f3d6 SHA-1: 81e3556ed97c481e6c3ebaacf7a6f80aa694ed46 SHA-256: bb3022f2d1a10323bee2fa967e726435bddf33a566d2d6cad20a00da71f56475
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size and image-only content, typical of a screenshot designed to trick users into clicking an embedded link. The embedded URL, https://jottigo.ru/aws?utm_term=essay+topics+for+sixth+graders, is likely the initial destination for the phishing attempt or malware download. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8113

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=essay+topics+for+sixth+graders PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476783/normal_6029e77b79d43.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/ZbWrakf/dragon_overseer_turn-_based_rpgs.pdfIn PDF document text
    • https://bexokafosirur.weebly.com/uploads/1/3/2/6/132695536/d439302b7aa.pdfIn PDF document text
    • https://cdn.sqhk.co/rugofufol/ihEjggg/26900796724.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392664/normal_602e34986b8cf.pdfIn PDF document text
    • https://bemijeze.weebly.com/uploads/1/3/5/3/135302335/verifed.pdfIn PDF document text
    • https://boxatikavizag.weebly.com/uploads/1/3/4/6/134680825/83b751600ad18.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411229/normal_5fdef4e7534e9.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/flgcKih/duwabebifo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374976/normal_5ff9639b881dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369779/normal_5fe69ed68463a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463807/normal_5fe133525acab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477655/normal_6004990bd758f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369927/normal_5ffcbd7b631c1.pdfIn PDF document text
    • https://cdn.sqhk.co/timafewa/hdChjig/best_budget_decks_yugioh_2019.pdfIn PDF document text
    • https://daxexamuve.weebly.com/uploads/1/3/4/4/134446800/5211082.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425908/normal_5fdc097a436fe.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/89997186367.pdfIn PDF document text

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