Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d89858ba8dea3d9…

MALICIOUS

PDF

326.9 KB Created: 2022-02-02 18:48:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 973831e230990e4ac13bd9732c8641dd SHA-1: 640d9c1c3ecf0122254725b3ca01f7ae99ebbdfd SHA-256: 5d89858ba8dea3d97d14d26f09e73b59a62323eb714a16f39fdc9e9e72e17343
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6479

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://cafij.co.za/XSRYdR1H?utm_term=bose+soundlink+mini+1+owner%27+s+manual PDF link annotation
    • http://studiogiovannone.com/userfiles/files/jobajowigexidinoxa.pdfIn PDF document text
    • http://potentialdesign.cn/userfiles/file/1630734642.pdfIn PDF document text
    • http://gattoneva.pl/pages/userfiles/file/53650957300.pdfIn PDF document text
    • https://aronabritcan.com/userfiles/file/nuzekipil.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1619b3cb73c0d1---4462640412.pdfIn PDF document text
    • http://globalcenterhotels.com/bot/ckfinder/uf/files/79432332766.pdfIn PDF document text
    • http://pomodorolennep.de/gfx/userfiles/files/20448623818.pdfIn PDF document text
    • http://balassalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tapakukerutede.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e332ce4710902c5b47cf5911a773833a/53156095156.pdfIn PDF document text
    • http://happyland-nsk.net/ckfinder/userfiles/files/59263848430.pdfIn PDF document text
    • http://frigotechreina.com/userfiles/files/divuwusebexowetakosuninek.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/d010013bc0b08f61f75982757ce97782/nofumojivovemam.pdfIn PDF document text
    • http://www.perchegouet.com/ckfinder/userfiles/files/dogunuwawuwigibimun.pdfIn PDF document text
    • http://archifolder.com/userfiles/files/raxoxupiviligazujokijej.pdfIn PDF document text
    • http://abb-impuls.su/kcfinder/upload/files/wogenulufolupe.pdfIn PDF document text
    • http://riverside.tw/user_upload/files/495993323.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613f2ec01077d---58129373186.pdfIn PDF document text
    • http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/tusitamigisisa.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f28ec2b4d3d---tepubopuxo.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/161d586c51b7ee---814194430.pdfIn PDF document text
    • https://parokaonline.hu/upload/files/16623046185.pdfIn PDF document text
    • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/1fcb2fbfd3ea26b669c3f0375a2dcf70/31767031764.pdfIn PDF document text
    • https://markaoyun.com/calisma2/files/uploads/tutiraranitanavupix.pdfIn PDF document text
    • https://tenutaedone.com/filesUploads/file/3105536434.pdfIn PDF document text
    • http://www.cst.rnu.tn/js/ckfinder/userfiles/files/sodagejivugafamudibokun.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/79a433491bafe3544ac826dd805a753b/legerepologovarerer.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45B10 19848 bytes
SHA-256: 2f829bdb35d820579401bb56ea13cb65030cf17f2f2f1fe2ddef9268cef1493d
font_01_sfnt_off00048e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48E25 26288 bytes
SHA-256: bdfda55a4f85c83cf4ef7c204a4c1e1b382a528a98a63b4c99765597fda20ab9
font_02_sfnt_off0004dafc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAFC 10728 bytes
SHA-256: 1851736b58903eb1b0500dd5ad3544d97cbb94caeeeae33d9bc408bd907d8eae
font_03_sfnt_off0004f3c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F3C2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9