Malicious PDF — malware analysis report

Static analysis result for SHA-256 114ec08a0816c260…

MALICIOUS

PDF

100.0 KB Created: 2021-07-04 15:22:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: fa8ca856c35987d184cbc53f323ba30b SHA-1: ca737fff2b677376cd4764be4abd90c8a1b4f07e SHA-256: 114ec08a0816c260dc1a11e369ea7689b143b45f79a0af499bc9fd6ba29c832d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains numerous links pointing to external websites, many of which are hosted on compromised CMS platforms. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body is heavily obfuscated and unreadable, providing no direct clues to its purpose beyond the heuristic findings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3fafc643d---37896737471.pdf In PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/f689b328eabbf52e97632f87bb416be6/9223088012.pdfIn PDF document text
    • https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/fdssr4f5da89qurg5hrjlraj1s/50622802968.pdfIn PDF document text
    • https://tungqibiotech.com/upfiles/editor/files/37948195898.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871904eaf85---78455131579.pdfIn PDF document text
    • http://arch-teh.com/pic/userfile/fawonizomudexemagilalaw.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e58f6ebe02---65449614572.pdfIn PDF document text
    • http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/tivepesaluzewo.pdfIn PDF document text
    • http://cokhihoangvinh.com/uploads/userfiles/file/93997298991.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160dfaef777489---tufilolajom.pdfIn PDF document text
    • https://gofropack.com/wp-content/plugins/super-forms/uploads/php/files/1441a932ab86376e3ebb8a5e8c7c2e34/10812897544.pdfIn PDF document text
    • http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/4uqmvdlumpi8ug6b4iitglog9u/90971627942.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f03620563c---wikiwivamoxasozarulun.pdfIn PDF document text
    • https://rosenstein.lu/userfiles/files/80569906069.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/fvafams65244i5u5qdvjqpbg0k/gujonavasawugubi.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/548b5eb273301c5e11419cdea36d20a4/genabofalagareronidujowen.pdfIn PDF document text
    • http://businessvaluationapp.com//fck_files/file/roxurapowen.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/f5088a96698c5fde0e1c79770285802f/suxugorenesasata.pdfIn PDF document text
    • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16089febc1c8e9---lupagomiwurezupudon.pdfIn PDF document text
    • http://gsemilia.it/userfiles/files/kijakiwanipidamuxar.pdfIn PDF document text
    • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/37d54698ef9fb3a1740f0174e1ee594d/vafujazomidezobidudixo.pdfIn PDF document text
    • https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/f6cfd4dd773808238f40f33b1e1e7f4a/zajugewutopafizok.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=friends+that+make+you+laughPDF link annotation
    • http://www.thaiticketmajor.com/static/imgUpload/files/90142527745.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_off000125b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125B3 10976 bytes
SHA-256: 0d9654eb3d9cc3ac3af40d6b9bc62de26dd1c27f8243aaf7a587cc7bfea7cd0d
font_01_sfnt_off00013ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ECC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000156de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156DE 17228 bytes
SHA-256: 861c2aa1ca4e1d7328b391efd751ca4ea92304b87e081b159377cdd82e45015f

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