Malicious PDF — malware analysis report

Static analysis result for SHA-256 3499dde57e57be0d…

MALICIOUS

PDF

61.2 KB Created: 2021-05-07 08:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 40602558e9e1260a6cbcbdddc4e1ba4f SHA-1: 58675707ae1b0c63bf7a20beeae0cc417b986390 SHA-256: 3499dde57e57be0d8ca2f5e83b6f75220fb00bc429cd480af5c877c3dd80287d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged by multiple heuristics as malicious, including a critical ClamAV detection for a phishing trojan. It contains a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9712

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://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/k057levouve0paqm8epuevlse3/36926782014.pdf In PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/647d65f1376ea99498ae707c7f5e91a2/33934018743.pdfIn PDF document text
    • https://acgroupenterprise.com/userfiles/file/zuwowa.pdfIn PDF document text
    • http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/45a29c3ac4fdee17165186658d4d0a9a/dowodabunidakag.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/91198d195f2105e384543b9fbd1a9f29/37850489423.pdfIn PDF document text
    • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/3mu0tq6b21le9gvq57rgk4f1dq/nozegovarurelun.pdfIn PDF document text
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608470d9e26f9---femeduded.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ef81fd16f8---koserowekizifu.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/0a31b5912678b5dcfd5d4c40980dbb30/ropozazibo.pdfIn PDF document text
    • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/4178b17b335e14f93c703c109b8c30eb/tumovejejejux.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd48dcde30---fonoge.pdfIn PDF document text
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094209837b28---86507466023.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/l81ug691lhqb8co6t0lvu3ias3/sojolefuganexelitim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=analyzing+literature+the+formalist+perspectivePDF link annotation
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2CE 5628 bytes
SHA-256: 9095818d6197c2fafa62d57578a562dd9e146c45f5e8e6d04c4a9d3701939922

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