Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afe8ee4510701c5…

MALICIOUS

PDF

219.2 KB Created: 2022-02-02 15:49:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 74d208a130272919e894ab13fa3dbddd SHA-1: d03371db061f95cb6c7517d999f4d669bd4cd8fe SHA-256: 4afe8ee4510701c5f6234017469692da114f91dad1838ff739870d53c6bcec6f
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and a high-severity heuristic firing for an SEO redirector link, indicating a phishing lure. The primary URL, https://lazav.co.za/XSRYdR1H, is used to redirect the user, likely to a malicious site. The ML classifier and ClamAV detection further support the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8269

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=android+button+onclick+xml+parameter PDF link annotation
    • https://zoorichi.com/temp/fckeditor/file/misakimadagorim.pdfIn PDF document text
    • http://rivebistro.net/ckfinder/userfiles/files/limov.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/81326406718.pdfIn PDF document text
    • http://www.mueblesgamez.com/ckfinder/userfiles/files/lerejigojajafawixumifogi.pdfIn PDF document text
    • https://cribpointonline.org/cribpointonline/userimages/file/20366017189.pdfIn PDF document text
    • http://phonphangschool.com/upload/files/63060804711.pdfIn PDF document text
    • http://xn--80affcyoc0ac1f6a.xn--p1ai/admin/modules/ckeditor/ckfinder/userfiles/files/galoxubofame.pdfIn PDF document text
    • http://damutech.kz/upload/2021/09files/2109030144348422973fgcr.pdfIn PDF document text
    • https://nepalipublisher.com/ckfinder/userfiles/files/49765783834.pdfIn PDF document text
    • http://pecsimutargygaleria.hu/files/file/sowogigexopimikuv.pdfIn PDF document text
    • https://beldapin.com/calisma2/files/uploads/luvevonakipoxikuda.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161e84a955feba---81424744221.pdfIn PDF document text
    • http://mateuszkucharski.pl/admin/file/86877068112.pdfIn PDF document text
    • https://huangs.tw/uploads/files/202109021019331138.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/6b9ab088b00fbcc7d82a819c9993fc0b/2292943429.pdfIn PDF document text
    • http://positiveforce.in/uploads/files/zemirofiwusuxopapekolizud.pdfIn PDF document text
    • https://pomtco.com/technical/files/file/vunugolixupawuziti.pdfIn PDF document text
    • http://dalaichau.com/files/27039544116.pdfIn PDF document text
    • http://www.2m-france.com/img/uploaded/file/86208502974.pdfIn PDF document text
    • http://ban-dong-ban-mat.theonejsc.com/userfiles/file/31283794156.pdfIn PDF document text
    • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/datakorupotidiwofuforu.pdfIn PDF document text
    • https://easyown.ddproperty.com/datas/files/genizabo.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_off000302dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302DC 16508 bytes
SHA-256: c7f4c5082a4ea3540ec0c680f5acbaacce2dc6f03a0c485d9d66c52e0db927ac
font_01_sfnt_off00032de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DE5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00034505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34505 10920 bytes
SHA-256: 9d919ae1d8c4005408cb4dfefc2fbb78a6c6a1f0974a258009af09a1410284eb