Malicious PDF — malware analysis report

Static analysis result for SHA-256 4877eafc1f96d91e…

MALICIOUS

PDF

78.4 KB Created: 2022-03-08 08:55:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-22
MD5: 587714c0358847f2f41ae959d569e8c8 SHA-1: 2e8238f92a4571861caf558e83d8405b9f3461bc SHA-256: 4877eafc1f96d91e68554018abd845b24edd1356a5b73dc832415e890aeac2d6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/162035964a2bb4---12096850483.pdf In PDF document text
    • http://studiodelcorso.eu/userfiles/files/23311014626.pdfIn PDF document text
    • http://manchesternh298.org/kcfinder/upload/files/gedowiragudixel.pdfIn PDF document text
    • https://www.igescanada.com/ckfinder/userfiles/files/54625356218.pdfIn PDF document text
    • https://gemicilojistik.com/userfiles/upload/file/53273735684.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/ca246387ace32b8d92664dee6b1cc67e/damuxonasejamo.pdfIn PDF document text
    • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/futuzavezofurin.pdfIn PDF document text
    • http://hysansam.com/fckeditor/userfiles/image/revebanajosurufisumaziles.pdfIn PDF document text
    • https://halkum.rs/files/kofemewitokoxakuvidomiwo.pdfIn PDF document text
    • https://dortmundpools.com/contents/files/pobiparumuxixunamizotu.pdfIn PDF document text
    • http://www.kermaz.fr/js/kcfinder/upload/files/89487188917.pdfIn PDF document text
    • https://music-group-store.com/upload/files/83126916254.pdfIn PDF document text
    • http://bebegim.nl/userfiles/file/23765959121.pdfIn PDF document text
    • http://3asoft.vn/img/files/wikowibibupixurezulu.pdfIn PDF document text
    • http://change4best.ru/upload/file/73403595020.pdfIn PDF document text
    • http://rjt1.org/upload/files/75322375911.pdfIn PDF document text
    • https://manhalhealing.com/userfiles/file/24337255176.pdfIn PDF document text
    • https://kebecelectrique.com/upload/editor/file/toromodanadelon.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/bubelaseborowi.pdfIn PDF document text
    • http://nitexprofi.cz/userfiles/file/66385913417.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/162094bb20a446---85907407808.pdfIn PDF document text
    • http://petraifevronii.ru/ckfinder/userfiles/files/volixadedozoduxub.pdfIn PDF document text
    • https://fleschimmo.lu/userfiles/files/75703920406.pdfIn PDF document text
    • https://www.cvr2021.scrs.in/kcfinder/upload/files/73950170130.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=rane+holdings+limited+annual+report+2017PDF 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 extracted file (font_00_sfnt_off0000cab6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cab6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB6 11328 bytes
SHA-256: 2720d65b5aed9f255d54f525bad684676d90ed1196edd36400f683f3efe877f3
font_01_sfnt_off0000e50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0000fc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC26 18072 bytes
SHA-256: 655a9bdd91e508c5b3a1fc6d33a7339614c21701f00afe2290fd6c4ef91fcf65