Malicious PDF — malware analysis report

Static analysis result for SHA-256 611e5c310d184628…

MALICIOUS

PDF

85.7 KB Created: 2021-03-12 09:01:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 371347cbd59c6942b1a273064af81167 SHA-1: eb86c7a69ef34bfb8dc08774f38a77c4de9ac8b0 SHA-256: 611e5c310d1846289eddac798e0fff07af477957deee419ea192f1653bd6fa31
96 Risk Score

Malware Insights

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

The file is a PDF document that has been classified as malicious by ML and ClamAV. It contains an embedded URI pointing to 'https://ponafet.ru/123?utm_term=free++anime+wallpaper+for+laptop', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to free anime wallpapers.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://ponafet.ru/123?utm_term=free++anime+wallpaper+for+laptop PDF link annotation
    • http://savadaqwe.space/short_article_on_save_the_planet_earthh8oyr.pdfIn PDF document text
    • http://wodebawoxisire.22web.org/what_were_ancient_greece_famous_for.pdfIn PDF document text
    • http://redokit.iblogger.org/thermador_refrigerator_freezer_parts.pdfIn PDF document text
    • http://manapuzasupin.sportsontheweb.net/1582832162.pdfIn PDF document text
    • http://lebepufu.mypressonline.com/marketing_plan_nike.pdfIn PDF document text
    • http://com-signto6.xyz/5804500196463nnu.pdfIn PDF document text
    • http://satofaxa.iblogger.org/senesem.pdfIn PDF document text
    • http://usesalon.xyz/5088604457f7xrx.pdfIn PDF document text
    • http://organize.shop/nikuruzedululabaxevmu17.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/32290666214.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/tejerawa.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/junivajeginuza.pdfIn PDF document text
    • http://pekomuvave.myartsonline.com/75775129937.pdfIn PDF document text
    • http://mutidulofof.epizy.com/showbox_android_tablet.pdfIn PDF document text
    • http://jesegiwazumox.epizy.com/enfoques_de_calidad_de_vida_en_el_trabajo.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/what_is_another_name_for_a_solution_in_science.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/wofat.pdfIn PDF document text
    • http://limedebenilaz.rf.gd/surusugowenumegifeb.pdfIn PDF document text
    • http://pikaderobiw.atwebpages.com/envision_math_2._0_grade_4_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/brewing_process.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://www.gnu.org/licenses/gpl.htmlIn 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_off0000e54d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE54D 4916 bytes
SHA-256: 869988ecaa178c39ea54c61d539140253d2b433b4c557a2302c6f858ed9156b8
font_01_sfnt_off0000f5fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5FB 8376 bytes
SHA-256: 0df8a342968b1be2053ddca3703d12e5b58f0065120ef8f700452233ac8c9e2b
font_02_sfnt_off00010d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D62 11160 bytes
SHA-256: 6d074d93f5f6ff09cdcd80c06f727bc215f26270ee6ea974f7e3d577012200ef
font_03_sfnt_off000133a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133A0 16164 bytes
SHA-256: 4b52fd5da643d9c08cc0a86f773b2f024e3274f3f861dfcac100db1ef433cf06