Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f01c3dd31898b0…

MALICIOUS

PDF

86.7 KB Created: 2022-04-18 20:44:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 559206b222e3545c987636967b18df49 SHA-1: b325926f343f8eabe152b07a9dff9986b8a848d6 SHA-256: a4f01c3dd31898b01283ad8cf06f26235c4716f2033bcfb82b48557e51b26a41
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://fecuq.co.za/YmrXLWy8?keyword=practical%20research%20planning%20and%20design%2012th%20edition%20pdf%20free%20download PDF link annotation
    • https://ssvacancy.com/ckfinder/userfiles/files/wavefaje.pdfIn PDF document text
    • http://xn--dlek-5qa.com/admin/UserFiles/file/sewotozoxazoxa.pdfIn PDF document text
    • http://les-dvorik.ru/userfiles/file/mosibelukewamub.pdfIn PDF document text
    • https://lapalettedesarts.fr/gestion/file/wopodolib.pdfIn PDF document text
    • https://www.amazoniaon.com.br/assets/js/ckeditor/kcfinder/upload/files/65225938518.pdfIn PDF document text
    • https://rekubiregidejel.weebly.com/uploads/1/3/4/4/134464182/pibokatened.pdfIn PDF document text
    • https://talosemes.weebly.com/uploads/1/3/4/4/134494853/13836d5.pdfIn PDF document text
    • https://sisareses.weebly.com/uploads/1/3/1/4/131454440/2937722.pdfIn PDF document text
    • https://tadiseregofinu.weebly.com/uploads/1/3/4/7/134748358/89959e262.pdfIn PDF document text
    • https://cissud.it/uploads/ck_editor/files/ketijekemupu.pdfIn PDF document text
    • https://mufunada.weebly.com/uploads/1/3/4/6/134623537/7716309.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16258ae7426a57---51963385556.pdfIn PDF document text
    • http://www.colormotion.cz/UserFiles/file/merigugatudez.pdfIn PDF document text
    • https://chiuman-hk.com/images/file/28598277078.pdfIn PDF document text
    • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/162537ec78f951---dujevilotekoteze.pdfIn PDF document text
    • https://aceold.lrsinc.co/userfiles/file/85913712160.pdfIn PDF document text
    • https://womutiliwefol.weebly.com/uploads/1/3/5/9/135964171/c7743bbad61c05a.pdfIn PDF document text
    • https://altsovmun.ru/userfiles/file/nekifag.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1620615c8604aa---regevivolaromiz.pdfIn PDF document text
    • http://canvangdientu.com/images/file/buvukilofes.pdfIn PDF document text
    • https://santa.sg/images/users/00000000/files/28936187172.pdfIn PDF document text
    • http://fishlinkworldwide.my/assets/kcfinder/upload/no_user/files/sexarepuvulatafatidini.pdfIn PDF document text
    • http://tiga.co.th/ckfinder/userfiles/files/73568100411.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/gedefolaripubifekifi.pdfIn PDF document text
    • https://vufomugivubi.weebly.com/uploads/1/3/5/3/135350936/zonexu-mavulite-paxure-rubup.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 extracted file (font_00_sfnt_off0000e7ab.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e7ab.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AB 18944 bytes
SHA-256: 0b9e66608336c15dbe80f85147b3583d2443456562a009bc6fe8bde541f52db0
font_01_sfnt_off00011939.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11939 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13150 11156 bytes
SHA-256: e42ed945ed30bd014553e41f8aee2cc03d49722bcb778c1a96a75f8eac9787b4