Malicious PDF — malware analysis report

Static analysis result for SHA-256 202522c9089e2f25…

MALICIOUS

PDF

67.9 KB Created: 2021-09-23 10:18:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: e94bda7b05e8fac89284e1280127f010 SHA-1: 35513452750d7c107079f026d4379bc02bfcf784 SHA-256: 202522c9089e2f25e29d799ec78ccf9251cd392b56bcd79c3da3cced9764561b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The presence of ClamAV detection and ML classification as malicious further supports this. While no scripts were explicitly extracted, the structure suggests an attempt to lure users to external sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6824

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://cottonweb.net/userfiles/file/zijasolasarofogutako.pdf In PDF document text
    • http://myucmas.com/userfiles/file/62507158195.pdfIn PDF document text
    • http://synthecinter.com/userfiles/files/36825704889.pdfIn PDF document text
    • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/161377034a6d70---36747549305.pdfIn PDF document text
    • http://kruengrangthai.com/files/files/52470508468.pdfIn PDF document text
    • http://franzoesischebulldoggen.eu/userfiles/file/58887186232.pdfIn PDF document text
    • http://macro-e.com/app/webroot/userfiles/files/88415100466.pdfIn PDF document text
    • http://cathugo-catamarans.de/res/wysiwyg/file/gerikojelopifoxetafukub.pdfIn PDF document text
    • https://ovistar-dz.com/ckfinder/userfiles/files/31251972261.pdfIn PDF document text
    • http://vswet.ru/f/pifikofamejulezapolo.pdfIn PDF document text
    • http://chamdure.com/DATA/files/92610656489.pdfIn PDF document text
    • http://ndfeef.com/radiant/mechimobiles/userfiles/files/70771690.pdfIn PDF document text
    • https://ottopianos.nl/files/duzagozux.pdfIn PDF document text
    • http://recit-de-vie.fr/userfiles/file/buleb.pdfIn PDF document text
    • https://equantumconsulting.com/files/files/59790662735.pdfIn PDF document text
    • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4701256db---22897925963.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/18128174672.pdfIn PDF document text
    • http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/widexibomako.pdfIn PDF document text
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/13064a6d57e910c708722a74047b1252/nizolikagunej.pdfIn PDF document text
    • https://dycmc.com/DATA/upload/files/202109121258047648.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/161460dbe653fa---lonifawe.pdfIn PDF document text
    • http://juentai.com/userfiles/files/rovikonibaporug.pdfIn PDF document text
    • http://taikenplan.jp/ckfinder/userfiles/files/64326803987.pdfIn PDF document text
    • http://theofficefurniturestore.com/ckfinder/userfiles/files/10222309998.pdfIn PDF document text
    • http://idevicesplus.nl/app/webroot/files/userfiles/files/28892503435.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=123mkv+bollywood+movie+2020PDF 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_off0000e615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE615 10644 bytes
SHA-256: 55c828fe244a999afc6df20a8b5144b911422c08fe75f0acc012385ac4e7b25e

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