Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f69d20de936cf4…

MALICIOUS

PDF

70.4 KB Created: 2021-09-15 13:02:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: facc57d97eaa2318952121fc4dd2cb3a SHA-1: a44f2c41f659a2bf9089d8efb6c2c6f57afb2704 SHA-256: 32f69d20de936cf45114817c59c408ff1cf631f5076eec9488ccec00d4f4f5e1
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to domains associated with link farms and compromised CMS uploads, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary attack vector appears to be luring users to external sites via embedded links, likely as part of a phishing campaign or to serve a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://pixomot.ru/uplcv?utm_term=free+pokemon+gba+roms PDF link annotation
    • https://pakianco.ir/data/image/uploads/news/files/54508979585.pdfIn PDF document text
    • http://iltorg.ru/upload/file/35485761010.pdfIn PDF document text
    • https://bulendengin.com/upload/ckfinder/files/33459045425.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614159eadd9e7---bubanogunekuwadinatozu.pdfIn PDF document text
    • http://sklenicky-obchod.cz/web/admin/fckeditor/userfiles/file/85034257111.pdfIn PDF document text
    • https://dananeye.com/uploads/files/202109031305155509.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/462a0808b7da42450e0b175ede7266b2/mixejanabuseposilu.pdfIn PDF document text
    • http://blfimmobiliare.com/userfiles/files/87268550200.pdfIn PDF document text
    • https://ecoolteh.eu/galeria/file/45464003994.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4e5cb56ae---kugomokajudesivunej.pdfIn PDF document text
    • http://dealershop.es/userfiles/file/buvukomizu.pdfIn PDF document text
    • http://archiw.gbpopatowiec.pl/img/upload/files/dowuvaki.pdfIn PDF document text
    • http://hpcad.pl/Upload/file/93084242583.pdfIn PDF document text
    • https://universitecentrale.net/uploads/FCK_files/file/wejetezebosusopu.pdfIn PDF document text
    • http://hoanggiaphatstone.com/upload/files/zatopojomese.pdfIn PDF document text
    • http://myphamasia.net/upload/files/82166037218.pdfIn PDF document text
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16134fa836f71e---47351989091.pdfIn PDF document text
    • http://ekmeta.lt/failai/file/47230334031.pdfIn PDF document text
    • http://trongtinpc.com/luutru/files/vogokapasa.pdfIn PDF document text
    • http://only-svet.ru/upload/files/guwovuligesirom.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/10ef5d98d1e7bab4b8811a0425a4e063/kumubirujegevokudan.pdfIn PDF document text
    • https://radekslodkiewicz.pl/files/file/36541021993.pdfIn PDF document text
    • https://miaousland.fr/ckfinder/userfiles/files/21492393627.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB259 16328 bytes
SHA-256: b23e47b481dfb0e1711ba8117abd19bf4d233396c04f4910a21f3af7841da12a
font_01_sfnt_off0000dc78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC78 10568 bytes
SHA-256: b4132d301e875199049c76901c554ab17831fb596f5d5d6e9ea60b358f830bfc
font_02_sfnt_off0000f451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF451 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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