Malicious PDF — malware analysis report

Static analysis result for SHA-256 20aac97f36828e70…

MALICIOUS

PDF

55.7 KB Created: 2021-08-09 01:03:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 9bf9ba68741c715450d091340c76e61e SHA-1: 4bdd353d8ba9e8b9b42378f6dbefa06bec90ee75 SHA-256: 20aac97f36828e70bc0c57019474cd616d13da2264f1e92481ca24ee00080ad6
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting an attempt to distribute malware or phish users. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery via a link farm. The presence of embedded JavaScript suggests it may be used to further obfuscate the malicious links or initiate a download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8308

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d367cb5fa---riragivujipupedosisifadek.pdf In PDF document text
    • http://trustarshida.co/cache/fck_files/file/fumezemisoti.pdfIn PDF document text
    • http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080118bb3427---dexoboxafosowevikifozuk.pdfIn PDF document text
    • http://brickchamber.com/ckfinder/userfiles/files/pesekumetudelilesawusika.pdfIn PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/5ee2ad1568fe7a99a83a0d711668b818/fanajubopemofula.pdfIn PDF document text
    • https://reaga.net/js/ckfinder/userfiles/files/punuxufu.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/34mro7tt5astkomb239go8rkv3/51945544206.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/5496879065.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/ca5o8agt1epec4guanmksoo9l4/migupagetiwubowizov.pdfIn PDF document text
    • https://windsbs.biz/files/file/zibapaxojenez.pdfIn PDF document text
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/4bdd480de0ede7c7d3a873890262cf51/54255403929.pdfIn PDF document text
    • https://burstallconrad.com/editor_files/file/45931272758.pdfIn PDF document text
    • http://jyjwqj.com/uploadfile/file///2021052802162356.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/83iscds3jpgn8ie1n5jvjqf0c0/35172675140.pdfIn PDF document text
    • https://ewt.cz/res/file/seraw.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1608b12ceb1b05---vegusobivezuloxorelo.pdfIn PDF document text
    • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/h35j2pv3n3djbrra7ucv74ce5q/94945458297.pdfIn PDF document text
    • http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/d5bcc4lgal11q157c0gdnai2e2/44130024949.pdfIn PDF document text
    • https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/fj1ocrs2l6janenek62s2pb0nk/86371113964.pdfIn PDF document text
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b5418e96870---56695164088.pdfIn PDF document text
    • https://www.nevjegykiraly.hu/userfiles/files/81893547350.pdfIn PDF document text
    • http://meteosputnik.ru/userfiles/file/kananodudijovosuni.pdfIn PDF document text
    • http://nomorecpapmachine.com/userfiles/files/gatonofozi.pdfIn PDF document text
    • https://infotechb2blite.com/bot/ckfinder/uf/files/36825238436.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=synaptics+touchpad+driver+for+windows+8.1+64+bit+hp+free+downloadPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.