Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ec95986312af83…

MALICIOUS

PDF

38.7 KB Created: 2021-03-30 03:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 17662cd1132624731b0221effab9ae3e SHA-1: 9114b1accbae510b020269e648d88df4a9553d1a SHA-256: 82ec95986312af83ebc6cd2a25be5f61ded0f71e3d6c434f0e5dca39113201e5
204 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a single image and minimal text, typical of a screenshot designed to conceal clickable links. The document embeds numerous external URLs, many hosted on disposable domains or link farms, suggesting an attempt to redirect users to malicious content or phishing sites. No scripts were extracted, but the presence of external links and the overall structure strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7465

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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-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.
  • 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://maypoin.ru/award?keyword=libro+de+los+anunnaki+pdf PDF link annotation
    • https://cdn.sqhk.co/gukugifixija/gYgdvii/28627218029.pdfIn PDF document text
    • https://cdn.sqhk.co/midijanere/KODgfgc/lirimugusalomaxepon.pdfIn PDF document text
    • https://cdn.sqhk.co/gasupewu/EhdxXpx/topiwavawaxazubuvenijux.pdfIn PDF document text
    • http://insta-sale.site/98762855618guw22.pdfIn PDF document text
    • https://mobuverafawez.weebly.com/uploads/1/3/5/3/135346795/734bea4f5fc.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/LjiCigh/pac-_man_and_the_ghostly_adventures_2.pdfIn PDF document text
    • http://ig-about.net/dragon_tiger_gate_movie_tamil_dubbedl3ztw.pdfIn PDF document text
    • http://gafubejenimefi.22web.org/cheese_in_the_trap_movie_kshowsubindo.pdfIn PDF document text
    • https://cdn.sqhk.co/lowimipofevu/hfJdfgi/65562636061.pdfIn PDF document text
    • https://mugapasuxow.weebly.com/uploads/1/3/1/4/131437627/beb424c.pdfIn PDF document text
    • http://xafuvarajuxeg.epizy.com/94260851386.pdfIn PDF document text
    • http://losikamadan.epizy.com/tafhimul_quran_bangla_translation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/704f2632-6513-4c21-9ee9-fe8860f5b9f4/67412934982.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72bd02f7-cd76-49df-ba3a-cc5c5e014ec3/ffxiv_materia_concerns.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a27In PDF document text

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