Malicious PDF — malware analysis report

Static analysis result for SHA-256 d351caeaaeccf659…

MALICIOUS

PDF

75.6 KB Created: 2021-04-02 01:39:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 948481169d1b40a48e411758c53d4fea SHA-1: 1b27a2b3f2f8df41adddaea28ae906fa1f2cecd8 SHA-256: d351caeaaeccf659f551ac84a7c7124fcf118d50ded9a066a6a68b8235d10ad6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL, https://xezojetit.ru/wix?keyword=eric+cohen+student+health+center+hours, is likely used to redirect the user to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to exploit vulnerabilities or trick users into visiting malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/wix?keyword=eric+cohen+student+health+center+hours
    • http://price-list.moscow/92845551105hcpjf.pdf
    • https://cdn-cms.f-static.net/uploads/4372086/normal_600fdd4128115.pdf
    • http://labebatazavanoz.mygamesonline.org/tilere.pdf
    • http://canonsburglake.com/lloyds_pharmacy_digital_thermometerwrpx3.pdf
    • https://cdn-cms.f-static.net/uploads/4490244/normal_6023ced9c8bd5.pdf
    • http://eagleaff.com/31584344936tslkh.pdf
    • http://milanomodaitaly.site/347627741671ytbx.pdf
    • http://bufo.online/904471301035pul3.pdf
    • https://cdn-cms.f-static.net/uploads/4407986/normal_601392ab750cc.pdf
    • http://igcopyrightclient.com/milton_bradley_game_of_life_instructions973hv.pdf
    • http://demask.space/atar_notes_physics_cheat_sheeticb5s.pdf
    • http://iciapp.xyz/cules_son_los_sntomas_de_un_cncer_de_pncreassqwin.pdf
    • http://litagud.22web.org/2016_challenger_rt_manual.pdf
    • https://cdn-cms.f-static.net/uploads/4392470/normal_601d6fed62709.pdf
    • http://arbitestpark.xyz/dajolabasndv5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bejexe/xoguxiwutora.pdf
    • http://nunavaxukozu.onlinewebshop.net/90819686956.pdf
    • http://gadejipitolom.epizy.com/rekubaxilenenojozutegolo.pdf
    • http://fajumosinom.rf.gd/love_songs_malayalam_whatsapp_status.pdf
    • http://dakunexafabeve.epizy.com/the_hitchhiker_short_story_questions_and_answers.pdf
    • https://s3.amazonaws.com/fewunadupop/buggy_car_game_free_for_android.pdf
    • http://sefamuw.rf.gd/35630271438.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7c5.bin
111988a35dcfdd4ed2d3a46bcf6bf101f12b0bc817991921d4dc3179886edb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C5 4984 bytes
font_01_sfnt_off0000f8b0.bin
8efa68588e5035e069e37833e9529c44098a108e1dd73f9dc3a0c23e7c105192		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B0 12152 bytes

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