Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bb5fa226fa5e5a…

MALICIOUS

PDF

574.4 KB Created: 2022-04-01 01:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 5c03c119b75347241c785799f658d766 SHA-1: 59168ec230bdcf1ded9f4edf6ee17fdff94d788a SHA-256: 88bb5fa226fa5e5a5b8869313423d882c0739587e780d8e5e61815aac8a6953d
201 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4523

Heuristics 8

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://norin.co.za/XSRYdR1H?utm_term=city+of+bones+graphic+novel PDF link annotation
    • http://tcpartners.vn/kcfinder/upload/files/18880717753.pdfIn PDF document text
    • http://envisystem.com/upload/userfile/files/97324517124.pdfIn PDF document text
    • http://ramadin.com/userfiles/file/16328683797.pdfIn PDF document text
    • https://libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/letowukenolivowapabajo.pdfIn PDF document text
    • http://journeywithmypet.com/ckfinder/userfiles/files/17991146823.pdfIn PDF document text
    • https://webdatedepot.com/userfiles/file/73734368802.pdfIn PDF document text
    • http://bf4.nim.ru/userfiles/files/megukawalunan.pdfIn PDF document text
    • http://rediscover.today/databank/files/94677896795.pdfIn PDF document text
    • http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/29804479503.pdfIn PDF document text
    • http://efuturesthai.com/uploads/files/gozologixedonewika.pdfIn PDF document text
    • http://smartbankingchoices.org/app/webroot/js/kcfinder/upload/files/57977792874.pdfIn PDF document text
    • http://jianianhuayule.a9188.com/upload_files/art_files/files/20220314_083226.pdfIn PDF document text
    • http://flussobjekte.at/kcfinder/upload/files/49381408219.pdfIn PDF document text
    • https://www.gryf-wet.pl/ckfinder/userfiles/files/86313701673.pdfIn PDF document text
    • https://revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/162462b571575c---duzolimelike.pdfIn PDF document text
    • http://cascad-trans.ru/files/futudixaxu.pdfIn PDF document text
    • https://xibogunef.weebly.com/uploads/1/3/1/3/131398295/jimezidaxesipa_lujalaxagawim_lirazimixu_fidapagetepa.pdfIn PDF document text
    • http://avto-sova.ru/upload/files/rutiwaruvenakasowelewoko.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16204950a4a909---19808238380.pdfIn PDF document text
    • https://hidropomp2008.com/uploads/userfiles/file/97351669446.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16241fe65b0a59---tasinelitixi.pdfIn PDF document text
    • http://shukokai-voves.fr/userfiles/file/mapupusokaneg.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/781194f9ef77e17f8c12569cf02f1646/33122228274.pdfIn PDF document text
    • http://master-vin.ru/files/file/81919442608.pdfIn PDF document text
    • https://laforefuje.weebly.com/uploads/1/3/5/3/135333455/noragawik_vowalipat_patijimon_sakuruvur.pdfIn PDF document text
    • http://www.bauernmusikkapelle-stjohann.at/CMS/ckeditor/kcfinder/upload/files/pikuzug.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/57966754565.pdfIn PDF document text
    • http://kochi-east-rc.com/admin/kcfinder/upload/files/gipogunazesex.pdfIn PDF document text
    • https://dibusolig.weebly.com/uploads/1/3/4/0/134096246/4874750.pdfIn PDF document text
    • http://ipea.kr/userData/board/file/97551097541.pdfIn PDF document text
    • http://tomasmrazek.cz/userfiles/file/vepel.pdfIn PDF document text
    • http://tlumacz-francuskiego.pl/userfiles/file/12579573526.pdfIn PDF document text
    • https://dikugero.weebly.com/uploads/1/3/4/3/134356342/doxelujunetezo-movujegelivij-bowusomoma.pdfIn PDF document text
    • http://soluzionebenessere.eu/userfiles/files/77551692161.pdfIn PDF document text
    • http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/22583536949.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_off000881bc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000881bc.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000881bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881BC 11112 bytes
SHA-256: 10d8390f2dd96f8ac882e907db914a4e1042429feb95b9c30ceed39457f2df16
font_01_sfnt_off00089b85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B85 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0008b397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B397 20420 bytes
SHA-256: dbbc5c2134ad7a09c6c721ef1e46c2dd917674b9443667e905a0189f3d1a2ebb