Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61f05c2c8306fe0…

MALICIOUS

PDF

325.5 KB Created: 2022-02-07 09:08:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 5e01626b411f8273c54ade52f4888426 SHA-1: 42602ac8766b175ea1acb3d4fc6e8822ad4eab1e SHA-256: b61f05c2c8306fe06ee19b8d7f51ff78bad4cc22a30a2547d8447c70dff005d4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6130

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=technical+reference+manual+latex+template PDF link annotation
    • http://senkardeslerkereste.com/kcfinder/upload/files/40733850626.pdfIn PDF document text
    • https://kitapkapla.com/upload/ckfinder/files/84381740245.pdfIn PDF document text
    • http://capitaloffice.pl/fotki/file/41762725963.pdfIn PDF document text
    • https://artgallery.devctn.com/ckfinder/userfiles/files/garurij.pdfIn PDF document text
    • https://thehouseconcert.com/ckfinder/userfiles/files/89606703901.pdfIn PDF document text
    • http://cycling-software.com/files/file/mexemabedasusuvegizip.pdfIn PDF document text
    • https://horizontire.com/userfiles/file/47540761881.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/b9e48bc261cc15e108ff4efaba7a0411/suvupugotasalaratugefepi.pdfIn PDF document text
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e372a747737---66763007939.pdfIn PDF document text
    • https://invest.pl/userfiles/file/depizetexax.pdfIn PDF document text
    • https://jfava.gemwareserp.com/userfiles/file/94710004164.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2021-11-13/20211113090025810574.pdfIn PDF document text
    • http://professionalcsali.hu/admin/ckeditor/kcfinder/upload/files/53807762546.pdfIn PDF document text
    • http://americasbestwingspa.iorderfoods.com/uploads/files/zuxawapiwabuxo.pdfIn PDF document text
    • https://bahia-group.com/ckfinder/userfiles/files/48268706109.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161a8355f53d29---xonobeti.pdfIn PDF document text
    • https://cortemadera.com/wysiwygfiles/file/verugazeda.pdfIn PDF document text
    • http://fsanaq.com/upload/file/21102010430007450216vt1e2yo5be.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a8eb15bf27b---16376260627.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/48468160028.pdfIn PDF document text
    • http://www.superprzygoda.pl/galeria/files/fiwetifuzafaradijetezonon.pdfIn PDF document text
    • http://ksiclubbiz.ksiclub.org/svnprojects/DHD/Source/images/files/beremewoxewezanalokolo.pdfIn PDF document text
    • http://jadeite.ru/images/file/takoramopoture.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/4ajvb277cv2bhp1mr5shk39p4g/25100817726.pdfIn PDF document text
    • http://hanarotalk.com/userfiles/file///mewebadujelodibeduxoras.pdfIn PDF document text
    • https://tselectromechanical.com/uploads/CKfiles/files/sakedaw.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/52070708502.pdfIn PDF document text
    • http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/gujikivafefexekosatoniji.pdfIn PDF document text
    • http://lagrupacio.cat/file/fepiroxudulujuz.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161af230551126---pafajubulikefipirox.pdfIn PDF document text
    • https://melz-feu.ru/upload/56920436278.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161511cb23d2b9---60787454332.pdfIn PDF document text
    • http://vpl-bd.com/assets/ckeditor/kcfinder/upload/files/48711210714.pdfIn PDF document text
    • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/1610ac29a3b751---kivulerotepunevesuwosoge.pdfIn PDF document text
    • http://secureyun.cn/uploadfile/file///2021100518423368.pdfIn PDF document text
    • https://deesudcoolingtower.com/userfiles/file/dadinujezodifowobago.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_off0004a89d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a89d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a89d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A89D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004bfbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BFBD 10620 bytes
SHA-256: 1597f0757f8b3c3c08cfcdd42112b99c4d83c02c3971920865aa24077624263c
font_02_sfnt_off0004d7cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D7CF 17444 bytes
SHA-256: e8601502ac7b9f78a71d97dc52e1933084a6ca08465b842b1ec9feb4b6824203