Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc002879e25b0012…

MALICIOUS

PDF

67.9 KB Created: 2021-02-19 07:47:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cffbe5b2597cbdf8f1e9c7947d9b0bb9 SHA-1: 3f518c71c7babd51e20e67edc44118dce4301f95 SHA-256: fc002879e25b00126c06d22c37256eeea7745272c2899f3d6511746b60b8ef91
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/wix?keyword=lompoc+school+district+number PDF link annotation
    • https://cdn.sqhk.co/sevigexew/cgcihGy/stick_warriors_super_battle_fight_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/gjdpEhg/custom_jigsaw_puzzles_1000_pieces_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370791/normal_60078d756f21a.pdfIn PDF document text
    • http://cetop.xyz/33638752133sestz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485935/normal_6015ba776a2c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371788/normal_602df3044df13.pdfIn PDF document text
    • https://cdn.sqhk.co/ferudati/iZickji/foguguluxuwajexoworekoge.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476768/normal_5febf934c7a90.pdfIn PDF document text
    • http://umniashka.ru/595501880526abap.pdfIn PDF document text
    • https://cdn.sqhk.co/rubuxupab/iOpjeln/21251374143.pdfIn PDF document text
    • http://dimax.website/comment_regrouper_des_ensembleom1ig.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/wemazun/53746693130.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/annexure_111_form_6_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/zexodizewesuzokixovikibam.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/adding_action_bar_android_studio.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/linux_commands_with_examples_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/gonavaligum.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_off0000ca44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA44 5184 bytes
SHA-256: 6a14fc67d8c56b17dfd99866dca3cc7cba28ca97da3d613718baf55c6eed329d
font_01_sfnt_off0000dbb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB5 12388 bytes
SHA-256: 668db39f9ef8b970ea2431194ec794da4b4b590a2d8b62f70c3c6f2950fb77c7