Malicious PDF — malware analysis report

Static analysis result for SHA-256 177f50d2eee3d850…

MALICIOUS

PDF

66.0 KB Created: 2021-06-19 01:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 444050d52f11f030ffce83ca5e17378c SHA-1: c43a168185e87c088079e3334a4cf43fa55e42d4 SHA-256: 177f50d2eee3d8503538193c2eb6354af58cf21d1f088c599d08a91bfd9ee039
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links pointing to compromised websites and disposable hosting, suggesting an attempt to redirect users to malicious content. The PDF structure and embedded links are indicative of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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://mamap.in/ci/userfiles/files/gejuranut.pdf In PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa087d7e58---lilapudifez.pdfIn PDF document text
    • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/8ef04ec36711340026c8b5cff695c1e6/78513885906.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1606da0bfeaea2---lizikilefaw.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/g9rtfpddnhk2vvs5qjqihhk0tn/87988578168.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/90261c315590bc58c3a0a14283e756a1/75313132615.pdfIn PDF document text
    • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/rq3cjrup2tfkvlfn7bs5ocm1v6/58218805259.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607f95d93e45b---98762712380.pdfIn PDF document text
    • https://ipic.vn/userfiles/file/kidurevuzenebazem.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/mu3us6jg2lsnk32f1f57k001ki/30703695314.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccdbb3f654---demidaravofoxekof.pdfIn PDF document text
    • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/fa98c87b5e7d55fe200212738b20633e/748476256.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/33aae52c683463885f658c3d1bf9a0ea/pisududiwanuzuzosugefejo.pdfIn PDF document text
    • http://precedent.by/_newsite/images_from_html_editor/file/19090534269.pdfIn PDF document text
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/9fcf552624687471bc0295ad4957204c/zufajifodizaxuka.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c0f83c8e8---23163352939.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081c65e5a009---tonubaxarili.pdfIn PDF document text
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a8851a5a6e3---83435645487.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/YTWXjIUwRh0/uplcv?utm_term=own+my+own+les+miserables+lyricsPDF link annotation
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C9 5304 bytes
SHA-256: ce0b706ae15aa97a934f0a6302de5ccfe34891610690222e2479c3cffe5e1590
font_01_sfnt_off0000e5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CB 11404 bytes
SHA-256: 6097cce4e50e6b36025b5c35d6158f2caad097daa62746c354c8c7ada4df9216

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