Malicious PDF — malware analysis report

Static analysis result for SHA-256 60aa9f49351f4418…

MALICIOUS

PDF

74.8 KB Created: 2021-09-02 02:25:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: f98f36941592f2ee21a5612b4ba2dddb SHA-1: 0758aee9a3f5427b91939e6f8f4ee1d2c747cb3d SHA-256: 60aa9f49351f4418b231864d7d1f61f6de73f2335eb9fd905c400f404654a7b4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier flagging further support its malicious nature. While no scripts were directly extracted, the structure and URL patterns strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5355

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pistant.ru/uplcv?utm_term=enlightenment+now+pdf+free+download PDF link annotation
    • https://101doctor.com/uploads/ckfiles/files/60be6aab02c26.pdfIn PDF document text
    • https://micsys.in/userfiles/file/35555977535.pdfIn PDF document text
    • http://anhbanglaw.com/userfiles/file/96082735753.pdfIn PDF document text
    • http://dotykbylinky.sk/_subory/subory/kipuvuguzifogube.pdfIn PDF document text
    • https://elnativocoffee.com/silver/upload/files/zulefasimojiweti.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/934eaf142d2f17f21ccd36f78a8bdb3e/woparuw.pdfIn PDF document text
    • http://w-mill.jp/images/file/kapigakofewu.pdfIn PDF document text
    • http://kaitosushisb.com/uploads/files/kavumezelopimuzo.pdfIn PDF document text
    • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608a624793f95---82151150596.pdfIn PDF document text
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/c1d41a5346b5d3006cc83eb65462ff13/gitemoduxubaxodum.pdfIn PDF document text
    • https://nada70.org/userfiles/file/6147307156.pdfIn PDF document text
    • https://cecprint.com/images/file/minikidozunowimevomusadew.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/porabakurinetadenawokek.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098599faeaf2---wepogiluma.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4fbddeedd4---kuripotofakevukopij.pdfIn PDF document text
    • https://magatek.com/documents/file/50309730008.pdfIn PDF document text
    • http://talentfuturesservices.com/sharpinstitute/images/files/tiludisusuvi.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611498c766324---42375760502.pdfIn PDF document text
    • http://tulsamemorialclass1969.com/clients/8/8b/8b8b36ecbaf17f244e47af75a29dfbe2/File/sedogofajenodubixaror.pdfIn PDF document text
    • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/gqu72rdpkgdvnuci33d14utb9u/xeketezofotezedotivona.pdfIn PDF document text
    • https://www.autopsrus.com/ckfinder/userfiles/files/53048895808.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d82dab3795---ximuminusozimonalox.pdfIn PDF document text
    • http://toyotarent.tw/FileData/ckfinder/files/20210702_C0EDE57161BF53B8.pdfIn PDF document text
    • https://www.espaciocultivarte.com/ckfinder/userfiles/files/68324050497.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000def8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f70f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70F 10848 bytes
SHA-256: 6e51b09b3176fdf0fdc43b6b5cf9d09fc5def455b04f12021481392234016fd6

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