Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc154b7e1dbd03dc…

MALICIOUS

PDF

62.3 KB Created: 2021-09-14 05:42:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 8bc9d513fd22bcd4d0cad9f1240e12d4 SHA-1: f4ab2cf863d3ef602f16a3a9d2b61d0f59d38b9a SHA-256: cc154b7e1dbd03dcde1cc9b1592af826df91aa34a485735f87f2e6d558e9334c
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a phishing lure, likely attempting to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8029

Heuristics 4

  • 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 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://hanboo.cn/Uploads/file/2021090213573070554.pdf In PDF document text
    • http://assessmentinsight.com/ckfinder/userfiles/files/26396468178.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161344e0bc1118---dozibasufixotafuv.pdfIn PDF document text
    • https://metrosecuritynepal.com/assets/userfiles/files/4171861800.pdfIn PDF document text
    • http://torby.kbo.pl/ckfinder/userfiles/files/torixofuverififoji.pdfIn PDF document text
    • http://sibzakon.ru/ckfinder/userfiles/files/63767202677.pdfIn PDF document text
    • http://webinaris.training/ckfinder/userfiles/publics/files/tefene.pdfIn PDF document text
    • http://tsg-vaganovskoe.ru/ckfinder/userfiles/files/92457299945.pdfIn PDF document text
    • http://shopabrang.com/images/files/94120431550.pdfIn PDF document text
    • http://mcap.cz/images/uploadedimages/file/91504382661.pdfIn PDF document text
    • http://placidlakes.com/larpm/uploads/file/gululixizorunakusawinitot.pdfIn PDF document text
    • http://dotykbylinky.sk/_subory/subory/30414857450.pdfIn PDF document text
    • http://futsalcb.cz/picture/vtextu/file/tivisusaku.pdfIn PDF document text
    • http://rocincorporated.com/domain.com/images/dynamic_pages/file/98829475575.pdfIn PDF document text
    • http://ecohost.ru/pics/images/file/65149987222.pdfIn PDF document text
    • http://ksiclubbiz.ksiclub.org/svnprojects/DHD/Source/images/files/konowu.pdfIn PDF document text
    • http://szyoujin.com/UploadFile/file/20210903125543351.pdfIn PDF document text
    • http://irodaszer.lukinserv.hu/file/99034692846.pdfIn PDF document text
    • https://investir-petroleo.pt/ckfinder/userfiles/files/dasisotosi.pdfIn PDF document text
    • http://wadsoda.com/UserFiles/File/38213122068.pdfIn PDF document text
    • https://citronel.com/userfiles/files/tetorenepex.pdfIn PDF document text
    • http://bonfiremadigan.com/uploads/fckeditor/file/dumajuzurupexafimi.pdfIn PDF document text
    • http://savaksangida.com/resimler/files/71189460068.pdfIn PDF document text
    • https://www.temtechnologies.fr/ckfinder/userfiles/files/bejupug.pdfIn PDF document text
    • http://jingkangchem.com/upload/files/76981206130.pdfIn PDF document text
    • http://seychelles-resort.com/images/blog/file/90370684746.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=pokemon+tcg+hack+apkPDF link annotation