Malicious PDF — malware analysis report

Static analysis result for SHA-256 68bb982e10afbef2…

MALICIOUS

PDF

65.7 KB Created: 2021-06-15 21:37:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ebff7d2718593c4b49f7c41742d01b05 SHA-1: a2d95c6d088cc6a2d7298896a5479a3619363d58 SHA-256: 68bb982e10afbef214d689c7d4ef366520e9a870d1d02322e3c188de388077c4
154 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The document body text, though heavily obfuscated, appears to be a lure for software serial numbers, suggesting a phishing or malware distribution attempt. The presence of multiple distinct hosts and the use of UTM parameters indicate a coordinated effort to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8377

Heuristics 5

  • 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.
  • 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://crewmak.ru/uplcv?utm_term=7tox+for+final+cut+pro+serial+number PDF link annotation
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/7e4653d0aaf0e1c4d6809a36c87d4322/xijogajalojizi.pdfIn PDF document text
    • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/4ebde2f431d1b7376e13c1657fcc125c/47527772859.pdfIn PDF document text
    • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/dfc46338593c106b32aa98048d2442ff/64899265635.pdfIn PDF document text
    • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160810bbf5599c---gijeduxok.pdfIn PDF document text
    • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/dd25e33d091e3bd4d1ca2e56365a56e0/kimuve.pdfIn PDF document text
    • http://xn--or3bi2da319p.com/upload/fckeditor/file/81211803862.pdfIn PDF document text
    • http://villa-carlshorst.de/sites/default/files/file/rawofojaxuxevoxakesabemoz.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/f5f63e6fd4dee39fa8cb61fc70cf11fb/99367416196.pdfIn PDF document text
    • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d756479f1---21662750852.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b259a2f2942---kimewo.pdfIn PDF document text
    • http://icltindia.in/userfiles/file/zenosegegalotuvabo.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9251123854---gadego.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/d00c7e1593e218601c709c6e61f1be30/11230774949.pdfIn PDF document text
    • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c868d7d15fb---barerapal.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/epqcmh7fmgmcqo2rels3ui7huf/29710765052.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/be340365cac2586152efcbe11da731cf/28409067441.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E6 5356 bytes
SHA-256: 3cec2cef5f2b67d682a59f0f9d2b1ccb265c8626c454af5e2eee940721e8d595

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