Malicious PDF — malware analysis report

Static analysis result for SHA-256 793a3ac14783e35a…

MALICIOUS

PDF

84.0 KB Created: 2021-07-14 09:32:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: d9b0250a3a39965faf05144d22a9b0ec SHA-1: d860087d36e1a88f4346dc1400af0883fd79e360 SHA-256: 793a3ac14783e35a1e78cea5658ead529f3769afd5d1f91879f34cac53263267
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eab9c70cb3---mexazudisirakotin.pdf In PDF document text
    • http://autosoftware.company/autoresponders_images/files/56803593660.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b2a13d0a673---6520945408.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c7f92d383ab64266e27cf4fc92d755de/3897050369.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/811c3e690a590e4dbb14fb60e8f6315b/jupul.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1609caa48dfe7b---20967496068.pdfIn PDF document text
    • http://anhuicrew.com/upload_fck/file/2021-4-30/20210430110002152097.pdfIn PDF document text
    • http://www.trafikyaren.com/wp-content/plugins/super-forms/uploads/php/files/sjco2q79bjigm55uf1rvlmv0j7/26168381167.pdfIn PDF document text
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/6cac79bd806d2b7c3f63873009c4374d/78949500447.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/f96192ec25bd66600ff71cd5ae9c798f/63072005132.pdfIn PDF document text
    • https://otartufo.com/ckfinder/tartufofiles/files/xatenanikude.pdfIn PDF document text
    • http://tv-sat.cz/userfiles/file/wiputabifoxefesukekofiwox.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/16a02b32c73aa5c1c21e8629d07ff8eb/kojodutojex.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081a8ff5e03a---sogizobaxesiterapodo.pdfIn PDF document text
    • http://wannawwannie.pl/userfiles/file/21003134690.pdfIn PDF document text
    • http://ledins.lv/cms/file/fovadofubobuxekefedun.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094855fada83---doridap.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f4c961b870915c3cbd466a177c3f02c2/sozezi.pdfIn PDF document text
    • https://tidurmalam.com/contents//files/delenejitevi.pdfIn PDF document text
    • https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/84973917111.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16090221849a9c---69829191684.pdfIn PDF document text
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/93756cb7e26a1279ad36d6f397cd7203/82144066131.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe000009ce---14916505754.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=keratinizing+squamous+cell+carcinoma+meaningPDF 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_off0000e7a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A2 16236 bytes
SHA-256: 4a13e5ef4795e99d08d104803599728442dabac7f3142850cca76e48f7c5591d
font_01_sfnt_off00011196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11196 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000129ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129AD 10872 bytes
SHA-256: 79e3baf1b7b13c6bc6514f1e9c32a7c2d2e43ff183b8c7526bdbc359a4d4e13d