Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dda0da47fdd7e26…

MALICIOUS

PDF

561.9 KB Created: 2022-01-30 18:42:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 381fb0d9576fea7f9352a35ebc6d2744 SHA-1: 2315766ae0e2e8f27d373934f9036eae26bdbaaa SHA-256: 3dda0da47fdd7e26c462f2c3bc38338892df00d75d0e59331da47e43ad967589
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4784

Heuristics 6

  • 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.
  • 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=free+android+phone+recovery PDF link annotation
    • http://puisan.ru/uploads/file/zosoxisisige.pdfIn PDF document text
    • http://itaxabc.com/userfiles/file/20211123225105_306955176.pdfIn PDF document text
    • http://attilacenter.org/userfiles/file/popadotawipolaloxafopenur.pdfIn PDF document text
    • https://arch.ua/ckfinder/userfiles/files/9822661755.pdfIn PDF document text
    • http://uni-farm.pl/ckfinder/userfiles/files/zuzabefod.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161e81ca1ed58e---6361919676.pdfIn PDF document text
    • https://batdongsandothanh.vn/luutru/files/jugunezagarutuje.pdfIn PDF document text
    • https://miet.hu/kepek/bewakovonejatikolonekevux.pdfIn PDF document text
    • http://rainternacional.com/userfiles/file/wuwavopatetolunorefu.pdfIn PDF document text
    • http://alltechsro.cz/files/39073150350.pdfIn PDF document text
    • http://generaltubi.com/container/ckfiles/files/rarulasegujifijolud.pdfIn PDF document text
    • https://recentitsolutions.com/userfiles/file/zaradusitibinafajoro.pdfIn PDF document text
    • http://jezirka-biobazeny.cz/UserFiles/File/75141221239.pdfIn PDF document text
    • http://www.adarshvidhyasankul.org/userfilesfile/77978598411.pdfIn PDF document text
    • http://superlitefan.com/uploads/files/komewaketamesuradij.pdfIn PDF document text
    • https://ymvii.com/admin/upload/files/guwalapab.pdfIn PDF document text
    • https://cdmsig2.com/ckfinder/userfiles/files/92750194780.pdfIn PDF document text
    • http://revize-elektro.info/UserFiles/File/8440742486.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618892339daaa---26657940.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b6899c8be5---pegomezevimadowenexezijum.pdfIn PDF document text
    • https://www.jainajewellers.com/kcfinder/upload/files/miruzolotozemajupovaw.pdfIn PDF document text
    • http://work4shop.cz/userfiles/file/46710429160.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/ad307777127c1f4d99e10ec2e6f58b69/75972918947.pdfIn PDF document text
    • http://tavio.su/files/file/juvalabosite.pdfIn PDF document text
    • https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/nejuvitumo.pdfIn PDF document text
    • http://jr.ac.th/ckfinder/userfiles/files/43688884514.pdfIn PDF document text
    • http://artesaonato.art.br/kcfinder/upload/files/moliwonepubirotizuvu.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/59595036067.pdfIn PDF document text
    • http://qapoll.com/2015/vat/upload/files/ludafor.pdfIn PDF document text
    • http://itagqatar.zajeltel.com/itag/file/files/95767231447.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 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_off00086042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86042 10456 bytes
SHA-256: ba5a095b8d96d56dcda124672afb2dd82839881411d9c0cf2cf5f1755bf15162
font_01_sfnt_off000877d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x877D3 16456 bytes
SHA-256: 54e6bb475b7bc5631fc24c7b6538aa7b4299b054861a4f7fac3b5d7097741078
font_02_sfnt_off0008a238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A238 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336