Malicious PDF — malware analysis report

Static analysis result for SHA-256 f874dcd213c43043…

MALICIOUS

PDF

88.0 KB Created: 2021-08-29 22:30:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: eb59c84ecd20e0aab294fc443fe19ce5 SHA-1: b7fc39f5616e96f63a5e6107f733728db9a2200f SHA-256: f874dcd213c43043896f5a7ee2ee437e1bcc56386a6f75e879221f609ba16c3e
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 5

  • 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://shepardinteriordesign.com/rw/upload/file/xususapopelotabus.pdf In PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c6679f700---7721204127.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/d367b1235b2e0197435971d162691228/xozuvitupepufetubawomuxik.pdfIn PDF document text
    • https://pasarantogeldua.com/contents//files/20666643641.pdfIn PDF document text
    • https://valerart.com/ckfinder/userfiles/files/nejasobafatug.pdfIn PDF document text
    • http://moscowfashion.net/content/xuploadimages/file/45893309211.pdfIn PDF document text
    • https://anmoul.com/userfiles/file/fonaned.pdfIn PDF document text
    • http://saiprogetti.net/userfiles/files/39823097847.pdfIn PDF document text
    • https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16083ba4218cbd---gamigigapexukifigowa.pdfIn PDF document text
    • http://farmaciafici.com/userfiles/files/diximafimufiku.pdfIn PDF document text
    • http://hoangnamjsc.com/upload/files/wupuzudetorenobegomibix.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bc96b20d619---bogojoxas.pdfIn PDF document text
    • https://boyanbolyarski.com/userfiles/file/4641154316.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/1mfalsho7cfot12gflb5s13s53/likinixuma.pdfIn PDF document text
    • https://avela.md/userfiles/file/544107703.pdfIn PDF document text
    • http://heaig.org/editor/ckfinder/userfiles/files/weguzaxokaforu.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160afa465c379f---lepevatuzonevadomijopaxi.pdfIn PDF document text
    • http://associatedreclaimed.com/userfiles/files/kedanorevegegeg.pdfIn PDF document text
    • https://aviatroglo.fr/IMG/file/25242332892.pdfIn PDF document text
    • http://animationcoach.com/userfiles/file/17786917323.pdfIn PDF document text
    • http://tkhomedeco.com/assets/uploads/ckedit/files/20210609110419.pdfIn PDF document text
    • https://jdlpartnerss.com/userfiles/file/90691956530.pdfIn PDF document text
    • http://sictombbi.fr/ckfinder/userfiles/files/kikixebiromebeboxawu.pdfIn PDF document text
    • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/t4gtlk7ntk5dhct9rdc1pqulvf/pusijizovigu.pdfIn PDF document text
    • https://aventura-agence.lu/userfiles/files/pikasejesolo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+protect+the+environment+pdfPDF 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_off0000ef86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF86 10652 bytes
SHA-256: 1e9451de95d0000fcc1eb430c275e9735a40d7dea1a90f30af55df9a2e10f732
font_01_sfnt_off000107b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107B6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC8 18608 bytes
SHA-256: 20690891aa5ad800362bcec14bf5f7cdbbd8d4eae1822d97fe478afe166d672a