Malicious PDF — malware analysis report

Static analysis result for SHA-256 5502a739acb3f6bd…

MALICIOUS

PDF

261.7 KB Created: 2022-03-14 18:26:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: cf289c5f9cba35d5ba1869e92dd6c5dd SHA-1: 84088d7669e63ebb8f60a57e2e94e6cecef5553e SHA-256: 5502a739acb3f6bd6f1bcdc7717890be41b9cb7e4afdf410bf44eb2245e7e007
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8179

Heuristics 5

  • 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.
  • 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=bomb+squad+online+mod+apk PDF link annotation
    • http://nenkin-t.com/upload_img/ck/files/kevuwivojuwajuxajotozu.pdfIn PDF document text
    • https://branchennachweis.eu/userfiles/file/vibulunipivofakiwubibil.pdfIn PDF document text
    • http://langfordfinancialservices.com/userfiles/files/xenejuwanazowe.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/xijozikesokedibimo.pdfIn PDF document text
    • http://zhatuogz.com/uploadfile/file/nodowelebunobulusukev.pdfIn PDF document text
    • https://casacresques.cat/uploads/files/jojapamafin.pdfIn PDF document text
    • http://key-pro.jp/kcfinder/upload/files/rinadokixatu.pdfIn PDF document text
    • https://davaocarrental.com/images/file/52955777155.pdfIn PDF document text
    • http://thietbinuoitom.vn/uploads/userfiles/file/343249181.pdfIn PDF document text
    • http://unitedpestmanagement.com/userfiles/file/jibujetu.pdfIn PDF document text
    • http://np-laser.com/upload_fck/file/2022-3-13/20220313192736436520.pdfIn PDF document text
    • https://agros.net/uploads/file/22640277769.pdfIn PDF document text
    • http://bociany.sk/media/file/suzipif.pdfIn PDF document text
    • https://www.douggoodkin.com/admin/ckfinder/userfiles/files/bizoragige.pdfIn PDF document text
    • http://ediljolli.com/userfiles/files/mapumowuminekozopimideku.pdfIn PDF document text
    • http://coca-colalife.eu/userfiles/file/87899566999.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fbc51f1e4ac---xaduvuzuribotitotadodi.pdfIn PDF document text
    • http://sopkambing.com/contents/files/57844114935.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/thuvienquangngai/20220312/file/95293744264.pdfIn PDF document text
    • https://exprescredit.md/userfiles/file/lesudupepevotemesov.pdfIn PDF document text
    • http://www.dereformasenalicante.com/archivos/files/28111062960.pdfIn PDF document text
    • https://badischer-kunstverein.de/ckfinder/userfiles/files/51603794882.pdfIn PDF document text
    • http://niezapominajkowo.eu/userfiles/file/kazisata.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_off0003a770.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003a770.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003a770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A770 10884 bytes
SHA-256: bde8549a5f1d3453296b66a675eecbbee3ac36eaa6a93292ba2b49357f1b9f2a
font_01_sfnt_off0003c020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C020 18272 bytes
SHA-256: 39daf1d8660c4bdcd52d75456c0a690761295038770912e806c92e1c2c749d0d
font_02_sfnt_off0003f008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F008 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9