Malicious PDF — malware analysis report

Static analysis result for SHA-256 083532027e7c286e…

MALICIOUS

PDF

73.1 KB Created: 2021-02-09 17:40:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e221330013c9b0b188ac36fb89554604 SHA-1: 84b50ff31b8587d7806a82a2bdbd70c53c0a20ac SHA-256: 083532027e7c286e24093092f2ecae3b645a56521097923f3a41da4ee96b9986
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://maypoin.ru/aws?utm_term=simple+english+language+questions+and+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4458827/normal_5fdcf1554e7ad.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxedanafowa/jhgi1BB/pasezukimejukuvalanujiw.pdfIn PDF document text
    • https://cdn.sqhk.co/jupuvonijor/e070Pjc/face_mask_shortage_articles.pdfIn PDF document text
    • http://koguled.22web.org/vogebema.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458837/normal_5fe3465628545.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475194/normal_6004864d94789.pdfIn PDF document text
    • https://cdn.sqhk.co/vonezositixi/haibjSo/23861136026.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/CjeOVf9/king_s_landing_game_of_thrones_map.pdfIn PDF document text
    • https://cdn.sqhk.co/zugeketinog/iifQMge/snack_video_short_video_funny_video_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/hjahfVC/fiwotixutiko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480182/normal_601cc3d0665c0.pdfIn PDF document text
    • http://mebets.xyz/86650336037wnecs.pdfIn PDF document text
    • http://formblckr1.xyz/nobiturio2nm5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424400/normal_5ffd575b57364.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474462/normal_5fe68d1cc8c96.pdfIn PDF document text
    • https://cdn.sqhk.co/tatonabufule/mvhcHR4/download_game_gta_liberty_city_stories_mod_apk.pdfIn PDF document text
    • http://tisimewifexumi.iblogger.org/57984607623.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405197/normal_5ff29fa435a37.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_off0000e00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00B 5692 bytes
SHA-256: e0b95addcf87186e6fb0ece990b8cb4a3c77b984686846a5a24cd9a800588e1c
font_01_sfnt_off0000f347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF347 10620 bytes
SHA-256: 2698eeba0d55bf6ea84cfadea8f8b6816fad68ffd24bae324d270d5745a67fc8