Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab213a02460802ca…

MALICIOUS

PDF

68.6 KB Created: 2021-02-11 00:06:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e252b041e98013a6690fa5ad8eb85fa7 SHA-1: 277110e5798f2a47865eca9e021eea7edef34e20 SHA-256: ab213a02460802ca22a46bf78f90340ad05bc6916676ac9c3d49aca775bb0350
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://jacksth.ru/wb?keyword=information%20value%20sas%20enterprise%20guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485935/normal_6021d7345b16f.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/h9hcT7x/planet_fitness_apple_valley_california.pdfIn PDF document text
    • http://austritkfa.com/3533481279q7gfy.pdfIn PDF document text
    • https://cdn.sqhk.co/xitilesuxiw/rhi06gj/sweet_home_story_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/e4oa2rx/xiroxoxexatuwawexa.pdfIn PDF document text
    • http://7gusevshop.space/10234582286k06qf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470232/normal_5fe20f78ac108.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422367/normal_5fda0788c2cc7.pdfIn PDF document text
    • http://sacredname.ru/wenipazibuzoxikokagarjb0s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411937/normal_5fe0434875374.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390684/normal_5ffb5bd70e0b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378830/normal_5fecc4f23c6aa.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxosutuku/ieqZgfV/10052778664.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/mokixetat/tufivetinerifori.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/undertale_genocide_guide_german.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_off0000cd33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD33 5360 bytes
SHA-256: 44ead63501c6e70cad1aa54cb62d75dcb24071a1ff6fb11a549409a55efb78e9
font_01_sfnt_off0000df5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5F 11248 bytes
SHA-256: 51424a4ab8d9d19c90008cf47b413874ce8e8379b7fa8214c3201fcd1e339fbd