Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61317db9875aca0…

MALICIOUS

PDF

394.3 KB Created: 2022-03-04 13:53:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: e5d3aa17837939cabd3dc899345542b3 SHA-1: 6884439a17d2faaaa3494da047bc3d3f481a2f92 SHA-256: b61317db9875aca0e1f28e5b57559d715410d2816231afe837e3e6ec24989e9e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6300

Heuristics 5

  • 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.
  • 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://vasekurzy.cz/userfiles/file/20297195587.pdf In PDF document text
    • http://chinahk-ip.com/chinahk_ip/html/files/editor/file/50483313384.pdfIn PDF document text
    • http://awarelaxcentrum.cz/user_files/file/94682244818.pdfIn PDF document text
    • https://alhurwallpaper.com/Files/files/nazegawozuginejutepol.pdfIn PDF document text
    • https://clubkdo.fr/img/pics/files/55862770431.pdfIn PDF document text
    • http://www.samuitns.com/image/upload/File/13946174261.pdfIn PDF document text
    • http://ieclop.pnl.ac.id/asset/kcfinder/upload/files/baralunexe.pdfIn PDF document text
    • https://luquluqu.org/public/assets/js/kcfinder/upload/files/nabetusufunuka.pdfIn PDF document text
    • https://toshibacozum.com/panel/kcfinder/upload/files/zilolufimapawexedeket.pdfIn PDF document text
    • http://gardatrans.com/content/Files/53805026704.pdfIn PDF document text
    • https://ensegun2.com/ckfinder/userfiles/files/kapupesarududupenojedori.pdfIn PDF document text
    • http://pantryscan.com/123cars/imagefck/file/354857603.pdfIn PDF document text
    • https://www.pkkmaluku.org/berkas/plugin/ckeditor/kcfinder/upload/files/kokemefofu.pdfIn PDF document text
    • https://mapithanhcong.com/upload/ck/files/56817181882.pdfIn PDF document text
    • https://www.profiexpo.ru/js/kcfinder/upload/files/41926980508.pdfIn PDF document text
    • http://csc0451.com/userfiles/file/20220222193544_gy0y64.pdfIn PDF document text
    • https://evermoral.hk/upload/file/1646165484.pdfIn PDF document text
    • http://pspectr.ru/userfiles/file/xikegorovuv.pdfIn PDF document text
    • http://mexvp.com/ckfinder/userfiles/files/jojulamugagolegisemusebu.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/90271215945.pdfIn PDF document text
    • https://paixaodecristopi.cinemadossertoes.com/kcfinder/files/mejejirite.pdfIn PDF document text
    • http://hypotekaprezamestnancov.sk/res/file/raxifuse.pdfIn PDF document text
    • http://rzn-house.ru/upload/file/rixufanep.pdfIn PDF document text
    • http://kpglearningbox.com/assets/kcfinder/upload/files/wogibitebeserudu.pdfIn PDF document text
    • http://gzhangqin.com/uploadfile/files/negukolomufawigavev.pdfIn PDF document text
    • http://instant-image.net/UserFiles/Site/File/jusegejituzizokagaz.pdfIn PDF document text
    • https://htchninc.com/d/files/28748974684.pdfIn PDF document text
    • https://soyana.de/js/ckfinder/userfiles/files/91056426950.pdfIn PDF document text
    • https://salondumariagededijon.com/userfiles/file/temurenew.pdfIn PDF document text
    • http://tiquital.com/documentos/file/gikomajinotan.pdfIn PDF document text
    • http://dulichgiahy.com/upload/file/90315139215.pdfIn PDF document text
    • http://spakimthi.com/upload/files/98391078229.pdfIn PDF document text
    • http://105chers.netsociality.com/upload/files/90616895654.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=school+management+system+proposal+templatePDF 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_off0005b406.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005b406.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B406 10916 bytes
SHA-256: d81fb613f94bd41dcacbdb0e54d5e4a01430282db33ced85b50e259a5ec18369
font_01_sfnt_off0005cd2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD2B 20192 bytes
SHA-256: 2223720846c7126179c7e3a8790a784cbc1047f00c7b51296cb147d5d48082ae
font_02_sfnt_off00060221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60221 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9