Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0cb5e68bfc2ef7…

MALICIOUS

PDF

388.7 KB Created: 2022-03-04 01:55:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: f87e6bcc3c18600382a6353c2ef6c704 SHA-1: 8dc6f080b7af4fa0ee1f5160119f18c0760d717e SHA-256: fb0cb5e68bfc2ef79dc5ec9691ed7b0c191c39538c96b2efe4406b2aecfeeb6d
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8141

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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://yubit.co.za/XSRYdR1H?utm_term=chicago+manual+of+style+footnotes+citation PDF link annotation
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621828ef48d9b---golekekosobi.pdfIn PDF document text
    • https://rallstarawards.us/nbloom/fckuploads/file/57175390442.pdfIn PDF document text
    • http://kledingindex.nl/images/uploads/fagefumid.pdfIn PDF document text
    • http://kantoromega.pl/userfiles/file/buniwujuna.pdfIn PDF document text
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1621371b10b3d1---dilumezumavajon.pdfIn PDF document text
    • http://jobsmarttampabay.com/files/public/towota.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/fdac69bc43cef656c9bcb5b8422d1b29/tejeziwabirikazezeridoz.pdfIn PDF document text
    • https://asken.as/bilder/file/zufurivakuve.pdfIn PDF document text
    • http://myslizdrave.com/soubory/50785236683.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620dfe07b3221---baravuramavuja.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/ed6cd1fad6cd7cb4cb67231c5a787310/kasagupijomusaka.pdfIn PDF document text
    • http://uniradioweb.info/userfiles/files/99728337659.pdfIn PDF document text
    • http://daedukgs.com/admin/fckeditor/data/file/20220221092710.pdfIn PDF document text
    • https://pelletier-tp.fr/ckfinder/userfiles/files/25433418433.pdfIn PDF document text
    • http://studiotecnicoarduini.eu/userfiles/files/ruxuwesagoponexogax.pdfIn PDF document text
    • http://giprozdraw.ru/ckfinder/userfiles/files/tozijegeleli.pdfIn PDF document text
    • https://phoenixturkey.com/upload/ckfinder/files/83651577750.pdfIn PDF document text
    • http://sdtech-kh.com/kcfinder/upload/files/tademelodiwumineko.pdfIn PDF document text
    • http://citlak.de/admin/UserFiles/file/41161971425.pdfIn PDF document text
    • http://spgamepack.net/upload/files/43143150247.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161fd7bbb583ca---59853787083.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e712d7ee83---zoliwuletefutuze.pdfIn PDF document text
    • https://dawnraytech.985.tw/data/file/userfiles/files/tabiwilabitagedi.pdfIn PDF document text
    • https://grandioso.asia/editor_upload_image/file/sozis.pdfIn PDF document text
    • http://arbigaz.com.tr/panel/kcfinder/upload/files/87174990097.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/g28tpc23aq9v3838f70dqktcl1/korujizonigagujewaji.pdfIn PDF document text
    • https://ezgoe.com/10005001208290177/ckfinder/userfiles/files/87326885482.pdfIn PDF document text
    • http://someteme.com/archivos/_20220303220606.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_off000585e5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000585e5.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000585e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x585E5 20388 bytes
SHA-256: b49f5d71b1dc922ea972e5dfc3e54a777b190d9fadc85e6f4087857b80e4636a
font_01_sfnt_off0005bc74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC74 10928 bytes
SHA-256: 497054a2da42a3e8f0be2f17c2c4b844c06757f4e811861b0a1aed0b800e7a89
font_02_sfnt_off0005d5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5B1 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_03_sfnt_off0005ebb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBB3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9