Malicious PDF — malware analysis report

Static analysis result for SHA-256 62eac0f165948765…

MALICIOUS

PDF

41.2 KB Created: 2021-10-02 11:06:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e752d573c0c7b5ae9730e417a6bfeb06 SHA-1: 669b1943a43add270d5a5279c827ec7b9a794c62 SHA-256: 62eac0f16594876548f4b5b7cef7a9cd5c936ee6d1925b44e38cd68e8af7ed28
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing or malware distribution, as indicated by heuristic firings like PDF_IMAGE_LURE and ML_NYX_PDF_MALICIOUS. It contains numerous embedded URLs pointing to disposable hosting, forming a link farm, which is a common tactic for distributing malicious payloads or conducting phishing campaigns. The ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7020

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://makassitools.com/userfiles/file///fegik.pdf
    • http://abwhopewell.com/uploads/files/jejufisewexixogamujejufug.pdf
    • http://abcgsgeds.friendship-match.com/upload/files/45780225762.pdf
    • http://cerritos.songhakbbq.com/uploads/files/bikusikujezutoguzaguguwo.pdf
    • http://jamones-luna.shopcloud.es/ckfinder/userfiles/files/4289130704.pdf
    • http://3t-t.com/User_File/UpFile/file/20210926202954_NTExMzIxMTU2Mzk=.pdf
    • https://ecoolteh.eu/galeria/file/28431197430.pdf
    • http://zensushialiso.com/uploads/files/batazagenifugebumakuno.pdf
    • http://standardamulet.com/files/files/vogegododijapap.pdf
    • http://chelseafoodmart.com/uploads/files/8005971674.pdf
    • http://gruppocaminiti.it/userfiles/files/bunozimagiwota.pdf
    • http://chekeeh.ir/basefile/chekeehir/files/93171074397.pdf
    • http://piemonteforyou.it/userfiles/file/kunegepagiku.pdf
    • http://www.ecvbrass.ch/user/web/file/65986947077.pdf
    • http://anpharma.net/upload/files/93736408565.pdf
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16133a977817e5---nipunazerutofidaxurinaz.pdf
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/r25g6thucm69efo75u67ibik1r/gapowedetuxevebunefipew.pdf
    • http://princeworldwide.com/multimedia/userfiles/file/36810041936.pdf
    • http://www.hon-ro.hu/userfiles/files/zuveniwavofekikijogibuv.pdf
    • https://rt-totaalafbouw.nl/userfiles/file/99928605187.pdf
    • http://mashhadgardi724.ir/basefile/mashhadgardi724/files/pinidakape.pdf
    • http://schokozentrale.de/idata/83445936420.pdf
    • https://china-glass-mosaic.vegner.com/userfiles/files/20210917_101332.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=biology+quiz+questions+and+answers+for+class+10