Malicious PDF — malware analysis report

Static analysis result for SHA-256 6240a96b5a701c5d…

MALICIOUS

PDF

75.6 KB Created: 2021-06-29 21:42:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 652e35097f54215648be37189edcd16d SHA-1: f427939ae556b7510c7e97c68e2edb053d1e285f SHA-256: 6240a96b5a701c5d672618c4ee44f7807daa4cee1bfe64ef3bd6095a484d7cc3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://kapli74.ru/upload_picture/xogamuwobiso.pdf In PDF document text
    • http://eksan-ltd.com/userfiles/file/tuxopumuwo.pdfIn PDF document text
    • http://alliance-ltd.com/userfiles/zenipovivawunizirugaxog.pdfIn PDF document text
    • http://gediklimakinahidrolik.com/resimler/files/18567727653.pdfIn PDF document text
    • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/6b5b12887f8f62b7ae415f5115605d05/70087423356.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3fae19241---78381421530.pdfIn PDF document text
    • http://phutungtdc.com/upload/files/zitodufe.pdfIn PDF document text
    • http://gourmethousemacau.com/UploadFilesfile///28295550841.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/ffe2e9cf0ecfd1ac3b7e9ad842778962/kosopujibitajiv.pdfIn PDF document text
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/r26cgpbaqccoih4mc7bvg1mmof/27899894668.pdfIn PDF document text
    • https://stef-nancy.fr/upload/document/69778939651.pdfIn PDF document text
    • http://bright-mineral.com/uploadfile/file/2021060312500317.pdfIn PDF document text
    • https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/a7d67369b3c28618d46b8e1dad44566b/94985354805.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9dad45ef1---xekonugatekujajonomabewu.pdfIn PDF document text
    • https://bio-obst-und-gemuese.de/userfiles/file/kebiwusagawur.pdfIn PDF document text
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/5v9qbv94vrmpq1t4cr4s8uujge/45924031980.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b27d4801031---mopuduwekulejidubasubomo.pdfIn PDF document text
    • http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160742cc955d75---47366774656.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609833ad70dfc---nijisukelilekof.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3004bd94d---dovumisedepuwizodenewu.pdfIn PDF document text
    • http://chataphan.com/file_media/file_image/file/fajuvew.pdfIn PDF document text
    • http://doo-san.com/userfiles/file/20210518230414.pdfIn PDF document text
    • http://pokorny-podlahy.cz/UserFiles/File/82413444050.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=pearson+grade+8+history+textbook+answersPDF link annotation
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/46be89a6c7c3c2fd042fd4a29ff8cd45/pofubenibusutudapipufukuw.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_off0000c25b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC25B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000da6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6D 17224 bytes
SHA-256: 98786c43845b5f696a4949e090410471daa7bea51c82ade7f9e3e6f61d7aafaf
font_02_sfnt_off000106e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106E2 11224 bytes
SHA-256: c5f81fda0f855806fe2b91cfccb0b1fbe81211bd8de15f6388f64a800923e88b