Malicious PDF — malware analysis report

Static analysis result for SHA-256 62a7a4a81834412c…

MALICIOUS

PDF

70.3 KB Created: 2021-03-25 18:01:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 496e0884e78ab0035b86bd98fa68c104 SHA-1: 858f60f06eefb22786be0a96a5694a2c5aec8ccd SHA-256: 62a7a4a81834412cb02fa464f2ba797f740f71e433b9387803343fb464bef6b8
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/wix?keyword=dow+corning+sealant+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393358/normal_604374f98cb28.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456999/normal_5fcedcaab67cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426813/normal_601d68e2631c7.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/jjjfUij/anbernic_retro_game_console_review.pdfIn PDF document text
    • http://kolagozisil.mywebcommunity.org/71251025751.pdfIn PDF document text
    • http://sadipize.scienceontheweb.net/wovetolufixepi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463263/normal_5fce92fc4f2fd.pdfIn PDF document text
    • http://gekifek.scienceontheweb.net/look_back_in_anger_bengali.pdfIn PDF document text
    • https://cdn.sqhk.co/titesojijuko/jgfniiA/jesax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374178/normal_604205c589f06.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://636e06b3-920c-4898-b827-ef778bbbc101.filesusr.com/ugd/40512e_ca76f99227d34aadb5ec5cf2891392e7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/dopolos.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/jeguxasebefe.pdfIn PDF document text
    • https://07e0a16e-b77d-475b-b724-88bbaedb347c.filesusr.com/ugd/8e9e2f_f79d30079ea84304b6093f3d4aa48161.pdf?index=trueIn PDF document text
    • https://146c8b6c-0b46-450b-8ed0-b45f1e2a4974.filesusr.com/ugd/b58d21_99fbf2518def486588c04a01c0835060.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/lesoleruweputos.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/corona_extra_beer_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/99_yamaha_timberwolf_250_for_sale.pdfIn PDF document text
    • https://80f75f89-a1e3-4611-a0ef-7a704eb82da9.filesusr.com/ugd/0286dd_3abface795a84543b39c3684bb4d0a19.pdf?index=trueIn PDF document text
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_70b364b2bcd740fa8ef3915286c64a0c.pdf?index=trueIn PDF document text
    • http://kagijido.myartsonline.com/84013411603.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_off0000d6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B6 5200 bytes
SHA-256: 9e3c8e2506b7701a87246bd4e4b33e9948d2a1872453317429fb5239bc34751a
font_01_sfnt_off0000e887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE887 10312 bytes
SHA-256: f7cc66a28c0021db3a23a86a6e08d152bdc70c58c8c977c4f696b75ff3f9aa38

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