Malicious PDF — malware analysis report

Static analysis result for SHA-256 322b753c68682289…

MALICIOUS

PDF

88.4 KB Created: 2021-07-09 15:01:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: ec82d95bd6214fbf9bcbdd6a77a55b73 SHA-1: 4c00fb4c119283af6f216783aa8f868e4d9282b1 SHA-256: 322b753c6868228965b6d285123aae0a596f993f3e97bd2fd3c3c30defed09f6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links pointing to various websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggests this malicious intent. Although no scripts were explicitly extracted, the nature of the links and the ML classifier's output point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6595

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://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e5076d653d0---61906963305.pdf In PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/r7nqs8s7jr5fd0petk9b4mgd27/fazegalidixepalikasutos.pdfIn PDF document text
    • https://aradmissions.com/ci/userfiles/files/voratoxi.pdfIn PDF document text
    • https://asi-filter.pl/files/file/16172078640.pdfIn PDF document text
    • http://odpadykj.cz/UserFiles/File/xazitowoguw.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16093e66371bb6---97265402743.pdfIn PDF document text
    • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/836819dc3f06cdb10665420b2c9f918b/duvekanafokidi.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1651022b97---70418784377.pdfIn PDF document text
    • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/ijjanb56tc9at04gb0fefm3m0v/vokive.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6365de98a0---50940233350.pdfIn PDF document text
    • https://stallion-international.com/userfiles/file/77525420796.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160e771393f8d3---lemoguzisoja.pdfIn PDF document text
    • http://libertyquad72.fr/userfiles/file/kidogaw.pdfIn PDF document text
    • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/7ee3e81695270648aa4c73c259bc7cb3/2138642125.pdfIn PDF document text
    • https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/3100abd4c5cf86a27b5c097140dea675/wegogebirovitulosapu.pdfIn PDF document text
    • http://ekotop.eu/userfiles/file/lesovabu.pdfIn PDF document text
    • https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608c2fdf61a0f---fatax.pdfIn PDF document text
    • http://greaterdeliveranceministries1.com/clients/61527/File/58265392913.pdfIn PDF document text
    • https://torbay.ru/images/uploads/file/lomadogowafidesurafa.pdfIn PDF document text
    • http://aelma.com/sites/default/userfiles/file/64699119273.pdfIn PDF document text
    • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/4dabd848826e45d3eba2cf62ac500149/58346729352.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc7b49ad9f---jisoxiniwovebuxiwox.pdfIn PDF document text
    • http://mobilenmr.com/files/files/vivovafuverugobonib.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=euphoria+is+aboutPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013e59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E59 10288 bytes
SHA-256: fbd51637d42c3a9015facbce1e43c5d50ed11f176c816d524116795cb86dce01

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