Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ff0cf2a2b7c44c…

MALICIOUS

PDF

72.5 KB Created: 2021-10-02 20:16:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 7ae4dc45d33120814b68a0b2628a664d SHA-1: e0f91d36b4807cffd66198705c0b7785e20f2907 SHA-256: f2ff0cf2a2b7c44c492ac3a4c2985e7622fdd1640ada11a97692e45162c26ecb
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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 http://gazdalkodjokosan.hu/img/userfiles/file/27108676479.pdf In PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ceb024ee77---kotom.pdfIn PDF document text
    • http://video-cycling.de/files/file/vijapigelimagizirezado.pdfIn PDF document text
    • http://inbiosa.eu/static/cfiles/files/jutupobobapijaradex.pdfIn PDF document text
    • http://jyotiacademicpress.org/uploads/file/defebixezibirujerixede.pdfIn PDF document text
    • http://medicare-darmstadt.de/bilder/UserImages/file/durirovanorawal.pdfIn PDF document text
    • http://bannermaul.com/userData/board/file/11037123698.pdfIn PDF document text
    • http://fusen-es.info/yamituki-n/uploads/files/pimekoluzupiwepirunumuxa.pdfIn PDF document text
    • http://sbriz.ru/userfiles/file/megerenajewiduzilakamip.pdfIn PDF document text
    • https://bor-diing.com/upload/files/sajutotitesajul.pdfIn PDF document text
    • http://spielundlicht.de/content_provider/documents/files/88070548306.pdfIn PDF document text
    • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/5e0273a27964ac7cab6a7f81bec95e6b/tidodawopubesune.pdfIn PDF document text
    • http://konsultacjenaukowe.eu/Upload/file/vababewopima.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/161363eef43d40---63589070056.pdfIn PDF document text
    • https://junona.manyel.website/images/uploads/medium/49663501346.pdfIn PDF document text
    • https://ekselantechnology.solutions/ckfinder/userfiles/files/vilirala.pdfIn PDF document text
    • https://atiksigorta.com/files/logefi.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161497c84a4443---zoviparuwetabag.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/8fd5e833bfa4ca81c828ec2553099f52/jizogomulipikugofe.pdfIn PDF document text
    • http://dges.in/userfiles/file/5529853637.pdfIn PDF document text
    • https://maftplayer.net/calisma2/files/uploads/sokuxasazi.pdfIn PDF document text
    • http://cnpair.com/userfiles/file/7131458021.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=least+count+game+rulesPDF 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_off0000b70c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB70C 17924 bytes
SHA-256: 640da584179686b0a4953e99e5f907b6185139c7870c616e96babd8aa27fdd6f
font_01_sfnt_off0000e478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE478 10536 bytes
SHA-256: 05c4fd5c68953797a28cf1fe239a4b2f9c5ede31f1e55f905387e1c1dc03781a
font_02_sfnt_off0000fc80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC80 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1