Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2d5069d8bf53be…

MALICIOUS

PDF

85.0 KB Created: 2021-06-09 17:44:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a35b7a70964949343ca268ea0959b6cc SHA-1: fe0a0d018d7812016103d839d47cfe21670814c1 SHA-256: 9e2d5069d8bf53be53f102ca75ca5e50f469cc5d1f22c8645e9b74b1303f8368
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ClamAV and an ML classifier. It contains numerous links to external URLs, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure disguised as an answer key to attract users to click on these malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7312

Heuristics 6

  • 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://garglob.ru/uplcv?utm_term=language+handbook+1+the+parts+of+speech+answer+key
    • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160830449c1046---zeriku.pdf
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/3s9tubekjdm8qk2h29n43jh7qg/20704907383.pdf
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/9824abfd529e2f49bd1155937de54085/11859375615.pdf
    • http://qca.ch/userfiles/file/60011621535.pdf
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607a17b4bc0e7---gojita.pdf
    • https://hgb.se/filer/file/sobexitunaleb.pdf
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbd4f5eea7---bewizopoxa.pdf
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160973b96741c6---gifabinisusupaboxi.pdf
    • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e3780e503f---33441592171.pdf
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/f3e37d5b7937f798dd4d030d02d7c2fd/85823688225.pdf
    • https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/62bc72d8b927a60de95f798853d70dd9/kilogafilumazuragim.pdf
    • https://myphi.biz/nbloom/fckuploads/file/deteruvaragixiko.pdf
    • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b64cd692e---gimogosonaxuboju.pdf
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/d0f6e80262a5a5bd490cc1655ba7746c/luleboratunosufovuri.pdf
    • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/oo3ld7g58n9mqgu7q0ek7mp90b/disexiriwolasolomufu.pdf

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