Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fde27755e919729…

MALICIOUS

PDF

88.4 KB Created: 2021-06-30 03:10:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 753bd7753afdb76e5c37f04b2c809bed SHA-1: a0ff9ddae3c38fa74652bbb74e46e9cc88fb3ffd SHA-256: 9fde27755e91972910dba01fce750e861a9b6a2309b94530f63c63e9c9a958ca
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as a link farm and by a machine learning classifier as malicious. It contains numerous embedded URLs pointing to compromised websites, suggesting an attempt to redirect users to malicious content or phishing pages. The ClamAV detection further supports its malicious nature, identifying it as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://cgeminfos.ma/upload/file/dutumutoribadikojiru.pdf In PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/5796556909cfb1ba19dcce12a53c2534/61412320685.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160bc235ea5f60---38940386404.pdfIn PDF document text
    • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb3c4d7fb9---35437597464.pdfIn PDF document text
    • http://beergolfers.com/blog/images/file/87244388682.pdfIn PDF document text
    • https://transpack-krumbach.de/_upload_bilder/_filemanager/file/35922747241.pdfIn PDF document text
    • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160776ff224558---69014598206.pdfIn PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/f0e8e1cca194e031afb04f02ef7db28c/14020845275.pdfIn PDF document text
    • https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/pdp1oqodi606a871dr3r9p2604/xobukibebutepidumobefikaj.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c779d6e070---ninifigozofijogisu.pdfIn PDF document text
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/4sh3o3sfrnc9j2tfaf0em99eqe/firazamudujik.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/242cad5c06b3fd132ef34a2cae901521/28319154343.pdfIn PDF document text
    • http://runo34.ru/attachments/file/lobawuwovodobojivivasamal.pdfIn PDF document text
    • http://kaitosushisb.com/uploads/files/74498136752.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c92fe8d67---derafobarufujev.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c770d81b59---84661159498.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ae1ededa190---vojelik.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099cd0392712---bozotubunelosasusemoza.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a9dced3b30---zalunakelejoku.pdfIn PDF document text
    • http://controldellaves.com/app/webroot/arxius/file/96543126004.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20210617215353599.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609832cce894f---79780322271.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/1019cjr8rdk7isb9rjno8k1fuu/zirevode.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=definition+of+conduction+currentPDF link annotation
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/dfa80dfee9669a91c8b483c54fb62769/93539088869.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_off0000fa01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA01 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11213 16712 bytes
SHA-256: 3ddc71dad706ecf3d242ef69b1aaade34a80ab852737b98869c7603de1604e0d
font_02_sfnt_off00013d51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D51 10192 bytes
SHA-256: c21a7de291d980930a5bea1fe9b64570120fb55fcd4927f4499e5c6275440faf