Malicious PDF — malware analysis report

Static analysis result for SHA-256 18afd5a95677ddf9…

MALICIOUS

PDF

337.5 KB Created: 2022-03-29 21:16:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 44d2b13ba87190de024b97a53a986d59 SHA-1: 506c35cfa49ecaec2be649bb6d0fd6c74430b103 SHA-256: 18afd5a95677ddf9a6517996174ee308d3f70f25c9a4c9696159be331041a7df
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6347

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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 https://lazav.co.za/XSRYdR1H?utm_term=2005+dodge+ram+1500+service+manual PDF link annotation
    • https://ssekolkata.com/ckfinder/userfiles/files/bukisatetafepep.pdfIn PDF document text
    • http://monthclean.com/uploads/files/202202042027479549.pdfIn PDF document text
    • https://kenuvibugitevam.weebly.com/uploads/1/3/4/7/134700053/dc2ae166c2018c.pdfIn PDF document text
    • http://prtl.pl/userfiles/file/romazixuxofebinusija.pdfIn PDF document text
    • http://severstroysnab.ru/userfiles/file/gepobidabelono.pdfIn PDF document text
    • http://biblebaptist.kr/user_data/kcfinder/files/61428601397.pdfIn PDF document text
    • https://dentrangtrisaigon.net/images/uploads/files/42171865412.pdfIn PDF document text
    • https://wadagoxegoti.weebly.com/uploads/1/3/4/3/134385229/xiwew.pdfIn PDF document text
    • http://sakem.org/userfiles/files/70381394468.pdfIn PDF document text
    • https://rawunixu.weebly.com/uploads/1/3/4/5/134527334/zasiluwaminexi.pdfIn PDF document text
    • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/162233fe3d34c3---62977611518.pdfIn PDF document text
    • https://tdemo.order-pro.com/ckfinder/userfiles/files/58741272929.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/e6gfet4n3pvnrt2s5upjql37ue/vajuvimomelomisiz.pdfIn PDF document text
    • https://jumuvive.weebly.com/uploads/1/3/0/7/130776409/zopotezirolanu.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/33d686fb12aff3644be3cd1ff8133094/27386744012.pdfIn PDF document text
    • https://www.photosenpoesie.fr/ckeditor/kcfinder/upload/files/vodutezox.pdfIn PDF document text
    • https://kafiwixuvaso.weebly.com/uploads/1/3/0/8/130874495/4791838.pdfIn PDF document text
    • https://wesikuwufo.weebly.com/uploads/1/3/4/6/134647185/664c54966d.pdfIn PDF document text
    • https://ibbfvhn.org/recursos/kcfinder/upload/files/21806961751.pdfIn PDF document text
    • http://vietlinktour.com/userfiles/file/76397684196.pdfIn PDF document text
    • https://ajansnigde.com/resimler/files/37480713017.pdfIn PDF document text
    • http://mdbim.pl/ubezpiecz/obrazy/file/56201775505.pdfIn PDF document text
    • https://dipakiwafopij.weebly.com/uploads/1/3/0/7/130740044/jojovaretaw.pdfIn PDF document text
    • https://mitixofixomu.weebly.com/uploads/1/3/4/3/134333727/wegapekunodamibiw.pdfIn PDF document text
    • http://charontrade.hu/data/file/wukudokoja.pdfIn PDF document text
    • http://ned.ru/uploads/files/44626690671.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16228dff636036---kuguwuvur.pdfIn PDF document text
    • http://tipkeo.com/js/ckfinder/userfiles/files/69157185549.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/6064634101.pdfIn PDF document text
    • http://terrygallery.com/fckeditor/_upload/file/wojalinixet.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/gidktbhjclgodu7i0ju5ehshku/muduruwubimujixovamijus.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_off0004d8bb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d8bb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D8BB 11112 bytes
SHA-256: 0df9aaef47c263bdf59a8f1a84aede92413a843e372e275186d29e6a0b497967
font_01_sfnt_off0004f28d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F28D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000509a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x509A8 17476 bytes
SHA-256: 9555d0b13c2cafa2c29df5f3335b54b90a8c551c05917a1412c371ecd334921d