Malicious PDF — malware analysis report

Static analysis result for SHA-256 875136682fa4a360…

MALICIOUS

PDF

312.5 KB Created: 2022-03-14 21:51:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 06c2c346c9f8f3ba71497f195e03face SHA-1: e52477eda80e7fcae22d25b13236ccca8ff4f32e SHA-256: 875136682fa4a3605f319601f583d4f645fa04afc41ac088cd43ef5ac2b7de5a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7195

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
  • 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.
  • 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://letnaterasa.customreal.sk/data/files/fedujanerajozumevodire.pdf In PDF document text
    • http://megatex-plast.ru/pub/file/26265629799.pdfIn PDF document text
    • https://macroedunet.com/userfiles/file/70450231083.pdfIn PDF document text
    • http://www.plavanikojencupraha.cz/upload/files/redevabiritogevad.pdfIn PDF document text
    • https://drosamahetta.com/userfiles/file/begiwat.pdfIn PDF document text
    • http://emke.hu/uploads/ckfinder/userfiles/files/bapugitefikekun.pdfIn PDF document text
    • http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/92540860824.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161fbb89adf46c---95725559418.pdfIn PDF document text
    • http://solentpodiatry.com/jackvl940/web/content/images_uploaded/file/tilafuwimekonevi.pdfIn PDF document text
    • https://fasaac.org/temp/files/wavomijude.pdfIn PDF document text
    • https://jagamimpi.org/contents/files/zozanotet.pdfIn PDF document text
    • http://safiorida.dk/operatori/userfiles/file/53246678534.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/338b5dc6513a5703aefbce8ba1e261a3/navugivelexazekorena.pdfIn PDF document text
    • https://billionbosses.com/ckfinder/userfiles/files/bewazamixezeba.pdfIn PDF document text
    • https://youkuvpn.com/upload/files/14290701987.pdfIn PDF document text
    • http://centrlita.ru/archive/image/file/3601596702.pdfIn PDF document text
    • http://www.premiumimport.nl/ckfinder/userfiles/files/42198577575.pdfIn PDF document text
    • http://energy-partner.pl/kcfinder/upload/files/99395984688.pdfIn PDF document text
    • http://kool-house.com/upload/editor/file/59415259006.pdfIn PDF document text
    • https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/susesagi.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206f6337d587---koximemuboboravufosipun.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622a5655b8224---10080320473.pdfIn PDF document text
    • http://gpmpoolandspa.com/ckfinder/userfiles/files/fovabuvi.pdfIn PDF document text
    • http://www.samuitns.com/image/upload/File/nusove.pdfIn PDF document text
    • http://sinosteelcode.com/filespath/files/20220311035756.pdfIn PDF document text
    • http://architects-desk.com/uploadsfile/30476695867.pdfIn PDF document text
    • http://jnmindia.com/outscapes/admin/ckeditor/uploads/ck/files/38004681925.pdfIn PDF document text
    • http://intertermo.nl/userfiles/file/pakonajev.pdfIn PDF document text
    • http://avision-italia.com/userfiles/files/fifojojuvilusi.pdfIn PDF document text
    • https://marikakozmetika.hu/editor_up/3725201792.pdfIn PDF document text
    • http://fonnepal.org/userfiles/file/bijevopovufez.pdfIn PDF document text
    • http://wyadonline.com/userfiles/file/65102007830.pdfIn PDF document text
    • http://yas-center.ru/userfiles/file/76715607985.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=prank+call+soundboard+apkPDF link annotation
    • http://border-collie.ru/sites/default/files/file/33593293594.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 extracted file (font_00_sfnt_off0004725b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004725b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004725b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4725B 10516 bytes
SHA-256: e02c255f3c2ca6821aa35f6c37b0b3de1798eb09f1e46e15931f17ff76c6c03b
font_01_sfnt_off00048a27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A27 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004a142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A142 18692 bytes
SHA-256: 02dff906ccafd0b3d667cc548b8ec152396b337fd9a760467b07603d03af59b4