Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4e1eaf116800bb…

MALICIOUS

PDF

86.2 KB Created: 2021-06-28 23:02:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 405ffa2cf89d9273e48dc796bcbf6a6f SHA-1: 598c0bdef32f229596094fefa5b1c39fa95a6f0b SHA-256: fe4e1eaf116800bbe0519ad3849de3a022148f0bfbc274d6ff35966c82557dbf
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, many of which point to external websites hosted on compromised CMS platforms, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 6

  • 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
  • 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://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/4c67b24b49d0cd25e32af8b248b50150/biliketeboxebemepumo.pdf In PDF document text
    • http://moto-bike.pl/userfiles/file/poralafuzuvo.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c5d04f831---71236616749.pdfIn PDF document text
    • https://aihr-iadh.org/uploads/FCK_files/file/85660936692.pdfIn PDF document text
    • http://polyalpan.hu/_user/file/3318896761.pdfIn PDF document text
    • http://zcapitalcrm.com/app/webroot/uploads/files/81130266941.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c261520a518---70062074389.pdfIn PDF document text
    • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/7c1711e6eb97a27ff5d53d5eac4a2800/kitiranusupo.pdfIn PDF document text
    • https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/160830abedf582---83809406778.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c774305fb8d---68960254315.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/91v2pqmscvb7n3i6kcob8vv24g/zojidowozav.pdfIn PDF document text
    • http://industrialdevices.in/uploads/17434768111.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/291df8679316e3b2f8aaad31678ffd5f/22747993778.pdfIn PDF document text
    • http://clarasonic.com/upload/file/25880954606.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160733ff5a7013---47643043184.pdfIn PDF document text
    • https://istocdukkan.com/userfiles/files/juwezo.pdfIn PDF document text
    • http://accomplishtheimpossible.com/userfiles_ati/file/84551699101.pdfIn PDF document text
    • http://vinacafe-dalat.com/Images_upload/files/sesubaputikikawerotovo.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607995bdb8e75---mazodomupavosujowute.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b98ce66fcfd---26666345461.pdfIn PDF document text
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa349a3d1d---61175886198.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609565862aa93---78206727396.pdfIn PDF document text
    • http://otvorene-srdce.sk/userfiles/file/begijufijoroxaxudosirup.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3e268d370---67951594902.pdfIn PDF document text
    • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/m4qu7h01ak15f5dj4ujc7pblo2/nozelebepugakalinigumir.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+kill+dragon+in+minecraftPDF link annotation
    • 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_off0000ecc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000104dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104DC 10820 bytes
SHA-256: baf42ced6a17d743dad7d26669b3f375e55c708b4b2f10a9f509cbd85d95243f
font_02_sfnt_off00011d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D92 17624 bytes
SHA-256: 6977819eae24a57bb6654f835ee9c6f8a50c84ec5393b9ca607ede09d7c52c24