Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e1bbe5658b149d7…

MALICIOUS

PDF

68.7 KB Created: 2021-03-24 10:00:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c18352dc62b662a0792d8f4d3161d9c SHA-1: 019671fd5011c0935c4c4bb0a0cb826908d8931f SHA-256: 4e1bbe5658b149d7f2f06e2f0795e7a213ae368c26aef9a6076d93956c848db9
104 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'char-broil 2 burner barbecue cover' and an external URI pointing to a suspicious domain, indicating a phishing or social engineering attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to trick the user into downloading a secondary payload.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ponafet.ru/strik?utm_term=char-broil+2+burner+barbecue+cover
    • https://cdn.sqhk.co/tuzijaxab/hePhjjb/whatsapp_for_nokia_e71_2017.pdf
    • https://belukuxar.weebly.com/uploads/1/3/5/3/135312366/pipujexoxeligovosiv.pdf
    • https://togawikanow.weebly.com/uploads/1/3/5/3/135320583/682827.pdf
    • https://cdn.sqhk.co/zezegawutogu/fgc4Vij/neurotic_definition_noun.pdf
    • http://padazaj.iblogger.org/pijodareg.pdf
    • https://cdn.sqhk.co/madilaxetevo/fdijUL8/exterior_house_paint_colors_photo_gallery_2020.pdf
    • https://cdn.sqhk.co/kopenanum/rEq8lic/36599636308.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kututugijama.epizy.com/xidekokebezugawibaraze.pdf
    • http://nuzavaxevarap.epizy.com/40611445472.pdf
    • http://tiroteta.rf.gd/pays_capitales_monnaies_monde.pdf
    • http://ripibaveg.rf.gd/windows_server_2012_r2_serial_key_free.pdf
    • https://ce099f17-eb12-430b-a452-8d789b3ee5a8.filesusr.com/ugd/aef5b7_b225cb41a1c44f619d9b8273c5351c3f.pdf?index=true
    • https://dc58184e-bbba-402a-8e08-a55d552c8f3f.filesusr.com/ugd/0ebc1f_1ab4c8516a30464d92b3b47b43d5790e.pdf?index=true
    • https://s3.amazonaws.com/rizezobabub/bedizi.pdf
    • http://rapamed.epizy.com/converter_para_autocad_online.pdf
    • http://gujupikisikali.epizy.com/aneurisma_micotico_aortico.pdf
    • http://refitebi.epizy.com/jojo_weather_report_joestar_birthmark.pdf
    • https://s3.amazonaws.com/kezemiradigu/escape_room_game_answer_level_34.pdf
    • https://b73b9701-b1df-43be-b031-73419f87697c.filesusr.com/ugd/bfbd96_5caf02dba68c49f1bcbbe9a1a3787fc5.pdf?index=true
    • http://zoregok.rf.gd/55398249931.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_off0000cdbb.bin
bb26b0ac0464a6987d8a6c117983fa141666d5cce94bfebd4b1ec7665023601f
pdf-font-stream PDF embedded font (sfnt) at offset 0xCDBB 4980 bytes
font_01_sfnt_off0000deaa.bin
f47c81a3dcc23e9902896737f0362d35f6184e9b99f3a19bff535c04a6a44663
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAA 10792 bytes