Malicious PDF — malware analysis report

Static analysis result for SHA-256 134e30f7059183b0…

MALICIOUS

PDF

41.4 KB Created: 2021-09-08 00:25:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 65ae29cea04a7dcd06f4b2e165f8b049 SHA-1: e2d277c4b50e7860787cc5a533a82ee805e984ad SHA-256: 134e30f7059183b0ed782f8838c13b88b3b5c1c087a64c8f3c097e602062a9bc
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-based lure, typical of phishing campaigns, designed to trick users into clicking embedded links. Multiple heuristics indicate the document is a link farm pointing to various compromised websites and disposable hosting, likely serving as a distribution point for malicious content. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7526

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://synerhu.ru/uplcv?utm_term=manual+de+organizacion+y+funciones+de+una+empresa+ferretera PDF link annotation
    • https://hzautomatisering.nl/userfiles/file/88032692767.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20210518010615136.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea0b615e83---69842717488.pdfIn PDF document text
    • http://bilafafafa.com/shopadmin/upload/files/varaxodutari.pdfIn PDF document text
    • http://koovappadyscb.com/ckfinder/userfiles/files/43588936448.pdfIn PDF document text
    • http://bawaconstructions.com/editorData/file/riluwojako.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081fdc6568ce---wogarufunisilunuve.pdfIn PDF document text
    • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/vidatufixiru.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160afdc6427059---vovaxakejutodij.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/f9rr5v2ic1uqcar04447lupjiu/79481406241.pdfIn PDF document text
    • https://baxsporthorses.com/userfiles/file/geguwazanegivunuwe.pdfIn PDF document text
    • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/4255a22eb8c8f5cebe1c3cb964a0e98d/38685243417.pdfIn PDF document text
    • http://cuacuonnhanh.vn/Images_upload/files/kiboxesivuzagevagiv.pdfIn PDF document text
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bc7ae938175---vojisugi.pdfIn PDF document text
    • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/fe461e667ae846659706e5693f1b1893/pasedenakorigupasigotede.pdfIn PDF document text
    • https://mancomunidadvaldizarbe.com/userfiles/files/78964748592.pdfIn PDF document text
    • https://sp-pir.ru/wp-content/plugins/super-forms/uploads/php/files/e6ff42488facda2a26523a55c6af4d1c/falojererada.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16102bfc8a02b8---gezidem.pdfIn PDF document text
    • http://rheumatology.instituteupload/content/file/sidarogavar.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/e59293d0aa575264215d94679397a144/dekunapewezodamozexibovev.pdfIn PDF document text
    • https://basisnomor.com/contents//files/76985631113.pdfIn PDF document text
    • https://happycolaborativo.com/uploads/files/73340852090.pdfIn PDF document text
    • https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/64s7v5hd3h0i52vksq9rdqb254/58313982610.pdfIn PDF document text

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