Malicious PDF — malware analysis report

Static analysis result for SHA-256 00dc7fed15b3056f…

MALICIOUS

PDF

48.5 KB Created: 2021-09-26 10:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 12b67586d748340f3ebd48ae6669f73c SHA-1: d0c8a6a49159f833eaab54b5387ccf591a4467f0 SHA-256: 00dc7fed15b3056fd76d91c60f53d9c627a7633647e31eab2827ce9147dcd596
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF employs an image-based lure, a common tactic for phishing. It contains numerous external URIs, suggesting it functions as a link farm directing users to potentially malicious sites. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6605

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 48 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://archism.ru/uplcv?utm_term=the+shortest+wavelength+within+the+visible+spectrum+is PDF link annotation
    • http://www.prctech-th.com/ckfinder/userfiles/files/41556694835.pdfIn PDF document text
    • http://sungwoo-n.com/userfiles/file/30519503421.pdfIn PDF document text
    • http://nensi.si/upload/file/34524848292.pdfIn PDF document text
    • http://artgrafika.cz/userfiles/file/xulaxukigolilobadoxivupi.pdfIn PDF document text
    • http://goodfortune.hk/UpLoadFile/file///90632178514.pdfIn PDF document text
    • http://ever0036.com/assets/uploads/ckedit/files/20210923021727.pdfIn PDF document text
    • http://morard-mcf.fr/data/Files/judaxivinasasugiwefenomad.pdfIn PDF document text
    • http://debseven.net/UserFiles/File/pomuzotasaposaxidibupul.pdfIn PDF document text
    • https://vcubusinesssolutions.com/userfiles/file/3579093297.pdfIn PDF document text
    • http://opersan.com/file/wigewudotidigav.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/aa3add0331e15583dc479be73941d17c/korukiralidile.pdfIn PDF document text
    • http://kingsbrite.com/kingsbrite.com/userfiles/file/xewusunokaponola.pdfIn PDF document text
    • https://demircanticaret.com/userfiles/file/sowofuvugunujazevagipix.pdfIn PDF document text
    • https://muguet.fr/sites/default/files/file/wabimasozapujunivamani.pdfIn PDF document text
    • http://www.prctech-th.com/ckfinder/userfiles/files/15974131046.pdfIn PDF document text
    • http://megaprestige.ru/uploads/files/47100263002.pdfIn PDF document text
    • https://domilot.com/uploader/files/xowit.pdfIn PDF document text
    • http://sanfrancescovet.com/userfiles/files/lapupini.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/topirimavuxekisodupesa.pdfIn PDF document text
    • https://zoomkish.com/basefile/zoomkishcom/files/90695952347.pdfIn PDF document text
    • http://dietetyka-24.pl/images/files/mofupakabitoxevi.pdfIn PDF document text
    • https://mimpi1pusat.com/contents/files/fiferitetosopobesedidogod.pdfIn PDF document text
    • http://chrisnoblelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lonusumugesusa.pdfIn PDF document text
    • http://boki.hu/editor_up/vojubal.pdfIn PDF document text
    • http://www.santamyoga.be/images/file/dutulebo.pdfIn PDF document text

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