Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a7a145f35ec48f0…

MALICIOUS

PDF

69.3 KB Created: 2021-08-07 16:34:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-04
MD5: 0ca88902d4d9ae7b1e9f96d53bf38014 SHA-1: 7a037c03f36ce2ca2d9c43e63c868d46560f5a2b SHA-256: 7a7a145f35ec48f088582792cf0d446c985913292290852e69bb950714b1433f
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4816

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://synerhu.ru/uplcv?utm_term=gta+6+apk+%2B+data+download+for+android PDF link annotation
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/e1096901bb714927fbfded6da79e2ceb/kefenirutamevut.pdfIn PDF document text
    • https://amatnieks.com/pictures/image/tewejefusopuzibidiriso.pdfIn PDF document text
    • https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/kpda5ej0q26uogoltaf31nb0jm/29612569886.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/cdda32ad5d6c88f3288d8f0949aa3f07/29131970762.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe30939f655---sejidobozekezowexul.pdfIn PDF document text
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/akgsb0graqqermds2p85uo3t91/59070316989.pdfIn PDF document text
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/8536d47a48n7gaorf07c6ee720/21931265900.pdfIn PDF document text
    • http://romanakladatelstvi.cz/userfiles/file/lagexo.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cc068a7f4---katalozojejider.pdfIn PDF document text
    • http://vonkoenigsmund.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7d46cd5a4---tijomadisabososijubikone.pdfIn PDF document text
    • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/a9b98a293cde7436f1269322ad861713/wobonolozoposoretovorav.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1e6ac2e566---43129988620.pdfIn PDF document text
    • http://greatnice.club/updatefiles/file/74615338943.pdfIn PDF document text
    • http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc0c26bf9b---34808057205.pdfIn PDF document text
    • http://cukierniabrzezinski.pl/www/artizam/fck/file/rukigavunudikugatozibax.pdfIn PDF document text
    • http://cautrucpalang.vn/webroot/img/files/benur.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/6si4fjirlkg66kv8cjfov6h3m5/keguvoduwepupasise.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160835a8ae6175---roragetezupofogitewelusil.pdfIn PDF document text
    • https://go2germany.ru/files/file/pijolixatodirirefiriwepa.pdfIn PDF document text
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607f880c00213---xudazutatoz.pdfIn PDF document text
    • http://amuseonline.com/absite/userfiles/file/26226295368.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e5c0a4a6684---talofik.pdfIn PDF document text
    • https://facades-et-traditions.com/actualites/file/buzakunekejowe.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/30049447745.pdfIn PDF document text
    • https://dotcomtravelegypt.com/userfiles/files/61064290663.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2258b3b20f---vazutixinibemizumiruniz.pdfIn PDF document text