Malicious PDF — malware analysis report

Static analysis result for SHA-256 c32ae20739234ffc…

MALICIOUS

PDF

69.2 KB Created: 2021-03-03 10:14:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5ed7589f6f1b25ad60da8a7e02b6393d SHA-1: 95514719a3417e00535e69f6b506c1a67f39b442 SHA-256: c32ae20739234ffc660f555406ca0fc9c332fc9b255fd4b63dd6945282b3eb07
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://dugedepap.ru/strik?utm_term=sharp+microwave+drawer+flush+mount+deflector+vent PDF link annotation
    • http://bimufufedo.22web.org/buddy_toss_mod_apk_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404512/normal_6031406de03d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491168/normal_600f3e7a769f2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427105/normal_60008a90ec8e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473618/normal_603255097520c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375095/normal_600594b70edd7.pdfIn PDF document text
    • http://vagokij.iblogger.org/2008_honda_accord_coupe_warning_lights.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446029/normal_5fdaf9ca817fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420039/normal_5fc626f345b1d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445333/normal_5fe16ebc79df8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502906/normal_5ffaacad08afd.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/rupatojuko/update_android_xiaomi_redmi_5_plus.pdfIn PDF document text
    • http://pexoroxijaseduj.rf.gd/bopixazofu.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/indian_movie_online.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/basic_excel_formulas_list.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/monsters_inc_scream_canister_portable_usb_charger.pdfIn PDF document text
    • http://verovaweroxuxu.epizy.com/2614385693.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/bernhardt_platform_beds.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_off0000d00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00B 5652 bytes
SHA-256: 5d0175a3aaf104fce05175d8dd061f3b03c6027fda887e8d557624885c61dcdf
font_01_sfnt_off0000e332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE332 10628 bytes
SHA-256: 48f941536ff7660b0c89bbf159ac96578f3899fcf361468b7fefc7476ce0658b