Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01b34b0514f444f…

MALICIOUS

PDF

87.9 KB Created: 2021-03-24 20:29:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d1b2dd2ea4b7af6a3dea754ff6d88b28 SHA-1: 60ab1871b4e9f78064c1c5656571baa250bbb0fe SHA-256: c01b34b0514f444fc8abf7d57a809c665e66f4a21393d3b73a6728015d695f2f
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://mezovuduw.ru/123?utm_term=string.+format+c+json PDF link annotation
    • http://nuwazomesesanok.mygamesonline.org/99391149378.pdfIn PDF document text
    • http://fivadoguna.medianewsonline.com/53289888027.pdfIn PDF document text
    • http://desajegurake.scienceontheweb.net/30890028873.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/guzatadowokijewam.pdfIn PDF document text
    • http://wifisef.medianewsonline.com/37944123848.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/58824955401.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/adverse_selection_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/cyberpunk_2077_ps4_patch_1.06_deutsch.pdfIn PDF document text
    • http://vigexosav.myartsonline.com/shadow_work_journal_prompts.pdfIn PDF document text
    • http://weponigonimogo.myartsonline.com/capacitor_in_ac_circuit.pdfIn PDF document text
    • https://68fdcf0a-b1f0-4758-9edf-48d2be6d990b.filesusr.com/ugd/ac51ce_b958f8acc19c467b9b8b5f85526819f8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bbb3858-ba97-4cc2-8ef5-23da2dafe0bd/who_is_the_most_powerful_goddess.pdfIn PDF document text
    • https://09235f31-469a-4613-94fc-36d04c1f642a.filesusr.com/ugd/8b6407_90b5cf8dcf6e4ab78fb5821d757eb77e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9221e639-e2ec-446b-b3a1-9bdddc31c7db/barnett_vortex_youth_compound_bow_package_45_lb.pdfIn PDF document text
    • http://rogofideb.onlinewebshop.net/dsl-2750b_firmware_download_eu.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/excel_vba_programming_coursera.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/astro_file_manager_apk_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/67255144365.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/42251065802.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FA 5052 bytes
SHA-256: e8432c962238f878f294d2f0e3bf0d93047ce2e0e507ccf998f93152bd68e1d5
font_01_sfnt_off00010600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10600 11452 bytes
SHA-256: 1b4ac352a5735570c6105b4da9c8acef9941dde7851fd0e0d3bc08d6f111976d
font_02_sfnt_off00012d6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D6D 16576 bytes
SHA-256: 452b95c123a7ba77b259129d34b02f22970661544aeb870f36654b7376bc07f8
font_03_sfnt_off000143d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143D6 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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