Malicious PDF — malware analysis report

Static analysis result for SHA-256 e338b59bed29b52f…

MALICIOUS

PDF

67.3 KB Created: 2021-02-28 23:04:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3982d639caf665faee7704a9fca549ec SHA-1: bd0499011876f79a3a6d391682770078420ab6d0 SHA-256: e338b59bed29b52f22888b3f707755170a38018d7847975fb2e33f5f5df4e0e5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://resalured.ru/wix?keyword=slope+unblocked+games+9696 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480886/normal_60240576494f8.pdfIn PDF document text
    • https://cdn.sqhk.co/mimotulifoti/A2gibJT/spartan_home_workout_no_equipment_pro_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477623/normal_6007bd47256a1.pdfIn PDF document text
    • http://buxosuloxe.iblogger.org/rirufopajumujugax.pdfIn PDF document text
    • http://lirinevewafa.mypressonline.com/60433575823.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476416/normal_5ff7b7b4b3047.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422145/normal_6011a97c35095.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393772/normal_5ff45659b38f4.pdfIn PDF document text
    • https://cdn.sqhk.co/ludukuni/jcjgghI/taming_master_novel_92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457847/normal_601a29ae715b5.pdfIn PDF document text
    • https://cdn.sqhk.co/remozemot/bgejcnh/jimivoluredanepabare.pdfIn PDF document text
    • http://busimaderule.mywebcommunity.org/96978351492.pdfIn PDF document text
    • https://cdn.sqhk.co/surodamiz/giOqie0/cod_fillet_recipes_easy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446036/normal_603165d41bc56.pdfIn PDF document text
    • http://fixalab.22web.org/clear_communicators_speech_therapy_seek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ca86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA86 5916 bytes
SHA-256: 2fb1844a6aa28f8ce2d485a56f96ea0971b105a17735290731517c9e2f865628
font_01_sfnt_off0000de8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8A 9964 bytes
SHA-256: 07e2c2df2f24619bc1c797eabdb7cf5de6e7c859a14b1be5203bedbc58067cfd