Malicious PDF — malware analysis report

Static analysis result for SHA-256 84eb64cbeaaa9b60…

MALICIOUS

PDF

48.4 KB Created: 2021-06-29 04:36:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: ae37006c9a42914952c137f560229049 SHA-1: 0d81316f2cc88ff915f3171fbd1471d6562b1967 SHA-256: 84eb64cbeaaa9b6067d0dc129e14213aa237c7fdd5b98517ad92ac7ea4a1aa09
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links pointing to compromised websites, indicating a link farm designed to lure users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. The presence of multiple distinct hosts hosting PDF files further supports the link farm attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8493

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 http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/e456400138a4aada533a5657bab4a618/50862585038.pdf In PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/a2c211bcc5963b5540bf37cf695d46c3/31125370829.pdfIn PDF document text
    • http://alexdisinfestazioni.com/userfiles/files/57274180889.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607257eb5f64a---17402748657.pdfIn PDF document text
    • https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16078a60eed7e8---20638268912.pdfIn PDF document text
    • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2cae81f8aed9a2f166e6e1558d188d30/dobagujivipunovad.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160acdce972c2b---98140720462.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/24ecc1fe94222d6487e579703c969810/siwikuza.pdfIn PDF document text
    • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0c8c5160d---tifefujijipigumor.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/dd3908537b88c62fc68724b1d33918ec/32158508831.pdfIn PDF document text
    • https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/8c053d9d92c67e3214c8eb508c3aea86/46614422313.pdfIn PDF document text
    • https://angkortaxiservice.com/userfiles/file/44171062306.pdfIn PDF document text
    • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/78905810934.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/7029391794.pdfIn PDF document text
    • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c07a92b5bea---daxofatizov.pdfIn PDF document text
    • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606c83fa80c48---lezofefatab.pdfIn PDF document text
    • https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/7cac22177f062f03dfbc0dbafda9a701/59146949973.pdfIn PDF document text
    • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/6o8ofh86j04bhouj25tjrkf079/kefisidorebe.pdfIn PDF document text
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/qbpfqp9q65d9bfnclg2s5boj17/mixafunexoj.pdfIn PDF document text
    • http://www.alexgis.com/siteuploads/editorimg/file/wisix.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/4bsbt0f4078obb3g69sugmnht7/16286263942.pdfIn PDF document text
    • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/pe593to8h7eosqbmc35n8l78it/6731075550.pdfIn PDF document text
    • https://weyergans-hcc.lv/userfiles/file/dibenoz.pdfIn PDF document text
    • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/3a3de9182bbc847d50e8e827cdf52a4a/92569060546.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=tempted+by+the+fruit+of+another+lyricsPDF link annotation

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