Malicious PDF — malware analysis report

Static analysis result for SHA-256 de5a08e73c985372…

MALICIOUS

PDF

92.5 KB Created: 2021-06-29 11:53:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: cabe7c927921ccc30fa1947869685180 SHA-1: a9974b4bcf0a50e312c348cba6076bbd5a3a10f8 SHA-256: de5a08e73c98537261ff06918eb6bc3937df806faf99ee3063985cff842fa774
156 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple compromised WordPress sites, likely intended to host malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document's structure and numerous external links suggest it's designed to redirect users to potentially harmful destinations.

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://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/kccnvhbcsbphefijvrbidjcpqu/98887271076.pdf In PDF document text
    • http://uni-farm.pl/ckfinder/userfiles/files/824110166.pdfIn PDF document text
    • https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/d906dc2db7dccb1824b6b432f2a9a1f1/98024383990.pdfIn PDF document text
    • http://ozari-ua.com/files/file/jonudegepovogalizutaladux.pdfIn PDF document text
    • http://blessingsngo.in/userfiles/files/1538574386.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/01a878bfe6a452c32dbd7c99a41fd3b8/jafilivugufifogod.pdfIn PDF document text
    • https://playerpress.com/ckfinder/userfiles/files/47029632665.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609876420d519---3851671279.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fce9a1b6aa---82847351900.pdfIn PDF document text
    • http://jp-photo.cz/soubory/files/36131420975.pdfIn PDF document text
    • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/0b2a2133a16d345361e1a1d3d3e6a466/vixibutuxukabisexa.pdfIn PDF document text
    • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/2542dd4374e301b9a1cd57e81f4a3dac/zosepanajixaxutewoze.pdfIn PDF document text
    • https://bamfieldrental.com/userfiles/file/bagiwaxo.pdfIn PDF document text
    • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/83b3f8152313c45bbbf111855930a185/rovovu.pdfIn PDF document text
    • https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/4732b625eb94e6ab7b1408c5912d187c/zejijeguxazuginu.pdfIn PDF document text
    • https://erdemlerkoleji.com/resimler/files/difoboweninijoje.pdfIn PDF document text
    • http://chocoenglish.com/_UploadFile/Images/file/luzalul.pdfIn PDF document text
    • http://amoy-art.com/Upload/file/45609786269.pdfIn PDF document text
    • https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/85e558a53c22a9016eb6bb950fc6de2c/55317606565.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/a7853f230154637efeb39997c9eb336e/tevotorazepibilezevo.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/4aa2cf6d797b25992311b85e8ce0ffe3/16196135000.pdfIn PDF document text
    • http://belst.by/upload/file/61365856352.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/0fcfda2dae90b0ebb1e9e6f72015cfff/tuvakugenozupigidabemotoj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=uses+of+kymograph+in+physiologyPDF 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_off00010584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10584 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011d96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D96 17804 bytes
SHA-256: 1357313cbfddfffa8fcdf205ab045eb5e3f13cad0e6b10428f3ba76019465c63
font_02_sfnt_off00014bec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14BEC 10920 bytes
SHA-256: 799985d1951d7303e2ae273618c0f293f5e9b228f220739603448f9a99fdb736

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