Malicious PDF — malware analysis report

Static analysis result for SHA-256 214cfae5ab971b18…

MALICIOUS

PDF

77.6 KB Created: 2021-06-20 03:22:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ecd2db90667d97cef4978dea30a4bd14 SHA-1: 68616db837b5c701825aec07f96e0952e33576de SHA-256: 214cfae5ab971b18bdb4206f05906527a0580b318580edaedfb6d8ea91561abb
154 Risk Score

Malware Insights

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

This PDF document, identified as malicious by ClamAV and an ML classifier, contains numerous links to external websites hosted on compromised CMS platforms and disposable domains. The document body, though heavily obfuscated, suggests a lure related to educational materials, specifically a '9th class maths state textbook'. The presence of embedded URLs and the nature of the heuristics strongly indicate this file is designed to redirect users to malicious sites for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8136

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://allytemp.ru/uplcv?utm_term=9th+class+maths+state+textbook PDF link annotation
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/k5qtl6i5n4q891orn2d58n43dn/44319235206.pdfIn PDF document text
    • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/09561b4c3251e2bcb7d78f6e342b053a/vewufetomef.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/41659afbd2c6099f79fc718271a11240/67682764197.pdfIn PDF document text
    • http://beta-rc.com/upload/files/lizudemijuturekixot.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c2044fbde0b---34993155296.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080035c851dc---jafakexonunefaxilinunag.pdfIn PDF document text
    • https://maxflowfans.com/userfiles/file/64908636061.pdfIn PDF document text
    • https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/8a94bac3b94b299bb59965e78db2c0e5/dajot.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/0aa9f8545afd2a8701739106ccdb74dc/80720874329.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160814ad2094e2---98706718614.pdfIn PDF document text
    • http://arablift.net/userfiles/file/vunutobipididerodeguzoro.pdfIn PDF document text
    • http://alexhofford.com/temp/files/file/ligesigerezux.pdfIn PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076580f5e706---vudamukotamovowunesurod.pdfIn PDF document text
    • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/8446fd90b939e37ca500903629573c6d/88625939956.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/16080a2f6eef7c---podidovatarud.pdfIn PDF document text
    • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075f6079bfad---ponifoxafexukupu.pdfIn PDF document text
    • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/3081aff7100cecce607197b405e61bb4/fezebupufixedir.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF537 5276 bytes
SHA-256: 61d8837afbcb113b1ee4e9f2e1c3fafbaa7a7187c622ea33cb5b18514f0c417f
font_01_sfnt_off00010703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10703 11056 bytes
SHA-256: f47412797b677eae55a7600a34bec7f21e4ff546dba79b8937f9a9965522d272

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