Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade9f6a3034e035e…

MALICIOUS

PDF

125.4 KB Created: 2021-04-16 07:05:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9884d32469bcea01f6af42de7d5de77f SHA-1: 12152416d4ccf9e52be6e34d6ba8eba9c9d5d2fa SHA-256: ade9f6a3034e035e9bb3f427e552b541ab92ff868883968fd8e20eda87d365a1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://maypoin.ru/strik?utm_term=chapter+4+work+and+energy+review+answers PDF link annotation
    • http://fly-drive.online/28556363199gs7wf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391898/normal_5fe6da9030c7e.pdfIn PDF document text
    • https://cdn.sqhk.co/banijuwa/gjYigij/69628700769.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499021/normal_5ff3663a78f08.pdfIn PDF document text
    • http://instahelpforbusiness.com/c230_kompressor_repair_manualz2vlz.pdfIn PDF document text
    • https://cdn.sqhk.co/tuseliwi/iiegggf/asgardian_steel_legends_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490264/normal_6052fcc4c0e07.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/8U4S4ja/26807766594.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/9qpoje8/graphic_designer_salary_nyc_2020.pdfIn PDF document text
    • http://sokixatov.mywebcommunity.org/lowofelotivop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423136/normal_6066b5162cc04.pdfIn PDF document text
    • http://twoup-viktoria.online/conversational_english_lesson_ideasrqpxu.pdfIn PDF document text
    • https://cdn.sqhk.co/lofakekaf/Sijiihc/100_doors_horror_game.pdfIn PDF document text
    • http://mebelrostov.ru/xaruguwaxokidokewasisikip4lgc.pdfIn PDF document text
    • http://merokomazojewi.scienceontheweb.net/275644732.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/nuxomigo/pebojuwadipewagomipupes.pdfIn PDF document text
    • http://webuvur.epizy.com/kixepedikiguvugofeju.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/xiliravibo.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/black_sabbath_paranoid_album_zip.pdfIn PDF document text
    • http://rozibililev.epizy.com/nebimiwanupewanitup.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/judy_moody_goes_to_college_book_report.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/63667026866.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000191ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x191AC 5500 bytes
SHA-256: 3b8ab3827fa0fc36626fa7f2c488e740ae7a4fcae9812b68e675a0c8cade70ea
font_01_sfnt_off0001a487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A487 13500 bytes
SHA-256: fd2bc907423681813b29737370e67650c76243da36770bee6cee747cf18c43b6
font_02_sfnt_off0001d223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D223 16152 bytes
SHA-256: cbc13509c5fcb0fb09f761580c2a5686ca662c90df46a338a6dfc62d15a097e3

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