Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f866bf0ab9bb2e…

MALICIOUS

PDF

69.4 KB Created: 2021-02-11 23:37:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 56ed7c01bd9689bc7d7ebcccdb45f687 SHA-1: 3686feb17a87214c25665f6264e1cc32a4f8ee37 SHA-256: 29f866bf0ab9bb2ed6c89c349e2a61e325d63fd3bf6170c71288845ef4c6b230
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=jio4gvoice+apk+download PDF link annotation
    • https://cdn.sqhk.co/kosibowo/hjjjSja/niworejolisan.pdfIn PDF document text
    • http://pedalini.club/12656443761t37vj.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/gijcKji/boomerang_email_alternative.pdfIn PDF document text
    • https://cdn.sqhk.co/rabovafom/Angijbe/boximemifobivimamu.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/hfhijhM/22063647421.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486042/normal_6002ad8524a80.pdfIn PDF document text
    • https://cdn.sqhk.co/bojowagawire/itJ7ijw/60755440358.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/95604460748.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/gantt_chart_in_excel_template_free.pdfIn PDF document text
    • http://jejivosijej.rf.gd/bteup_marksheet_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/88876440350.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/brahmo_samaj_formed_in.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2BD 5260 bytes
SHA-256: 20af37fe01eff80a1c4fdfd9a2efb1a9eabd32cadfcf1803b35c8345adbfe33e
font_01_sfnt_off0000e4d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D8 10584 bytes
SHA-256: 6c26de61b52e4be6fc1509a3ebb6e3d409c3c34bed95f01ae9372d3383345909