Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddcb025b0757dc9…

MALICIOUS

PDF

82.7 KB Created: 2021-09-20 16:05:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 8293451c096554e01ddce1ae296554cd SHA-1: d98558fb974722334ca97abe6d95edfb78f9f20f SHA-256: 3ddcb025b0757dc9c40004c66c75f46b2bd0bc849c2799852016066bd17c48df
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://asu78.ru/userfiles/file/numuparukizojutujezaduxe.pdf In PDF document text
    • http://plise.org/userfiles/file/42561710977.pdfIn PDF document text
    • http://coytex.net/ckfinder/userfiles/files/49749455115.pdfIn PDF document text
    • https://ladymamashop.com/uploads/files/202109190157089567.pdfIn PDF document text
    • https://aristi-trap.com/upload/users/files/topototuleliriruximurag.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa9215d258---vijewoziruwudikolix.pdfIn PDF document text
    • https://adikkeempat.com/contents/files/vabowitazetij.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc3b09d06b---sefanevig.pdfIn PDF document text
    • http://digjamaica.com/app/webroot/files/fevuvifexorowifatagozik.pdfIn PDF document text
    • http://saraya-shop.ru/upload/files/tetugogogedib.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2021-9-13/20210913054632458730.pdfIn PDF document text
    • http://studiocommercialedelpiano.it/userfiles/files/4812082456.pdfIn PDF document text
    • https://dentalrud.com/userfiles/file/jaliguvuvakexakivasowame.pdfIn PDF document text
    • https://webrobogo.hu/kepek/fegigikozegiguzaril.pdfIn PDF document text
    • http://cokhiminhhien.com/media/ftp/file/gugokurodojejonafuxebi.pdfIn PDF document text
    • https://songhong-thudo.com/img/files/20224032851.pdfIn PDF document text
    • http://goksirkrupskimlyn.pl/img/upload/files/sidetuligafuz.pdfIn PDF document text
    • https://vico-real-estate.com/ckfinder/userfiles/files/19595282172.pdfIn PDF document text
    • http://phutungvespaco.com/luutru/files/3243079129.pdfIn PDF document text
    • https://podiummagazinenews.com/ckfinder/userfiles/files/gifirone.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161453a21434ff---jipekanonizu.pdfIn PDF document text
    • http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_20_13_37_47_6982.pdfIn PDF document text
    • http://studioingegneramato.com/userfiles/files/47550969063.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1613da9e850eb6---22469411654.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=download+wwe+2k18+for+androidPDF 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_off0000df3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3D 17512 bytes
SHA-256: 74553cd6b8e3e4af9da8737e4433cc629fed1d98bae34d74ec8c13da5709f5da
font_01_sfnt_off00010cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CAD 10640 bytes
SHA-256: 9157e84fd5735a7ab642f4752a265720d3f70b90fc26bb4d59b2019fbcb4bf4b
font_02_sfnt_off00012544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12544 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1