Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6507881674565f…

MALICIOUS

PDF

77.7 KB Created: 2021-03-24 17:41:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b5e71c6022e7a38bab56eb4c29ccabbb SHA-1: 5dedc8a374232d2600e8973610d323453ff2f423 SHA-256: 2b6507881674565fcba63e438fa4f20e7c0a2990572cbc89365b461e3ca9b6ce
96 Risk Score

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 0.9992

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://nipisod.ru/aws?utm_term=is+buffalo+wild+wings+ranch+keto+friendly PDF link annotation
    • http://kewokuxumuzig.medianewsonline.com/xovibimewubovokalevepevob.pdfIn PDF document text
    • http://votapusi.mypressonline.com/73916585193.pdfIn PDF document text
    • http://jakiduve.scienceontheweb.net/renewable_energy_and_other_alternative_energy_sources.pdfIn PDF document text
    • http://kadanijojabuf.mywebcommunity.org/beats_studio3_wireless_review.pdfIn PDF document text
    • http://luxibenuguk.getenjoyment.net/bubble_sort_algorithm.pdfIn PDF document text
    • http://vobajujabu.mywebcommunity.org/satudevokuku.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://subogerilazelo.atwebpages.com/fuzomazilipifejizaxovi.pdfIn PDF document text
    • http://tudixuzaw.onlinewebshop.net/tp-link_tl-mr3020_wisp_setup.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/vowopa.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/79023803375.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/39436117533.pdfIn PDF document text
    • http://nunavaxukozu.onlinewebshop.net/85687351558.pdfIn PDF document text
    • http://puvapulugo.onlinewebshop.net/dominos_vegan_pizza.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/bharat_mata_video_song.pdfIn PDF document text
    • http://jorasixu.myartsonline.com/dangling_and_misplaced_modifiers_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/pupezituradavomavisavi.pdfIn PDF document text
    • http://jezevenakos.myartsonline.com/catch_me_if_you_can_dual_audio_hd_movie_download.pdfIn PDF document text
    • http://negumigimewote.onlinewebshop.net/bpsc_question_paper_2020_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/best_wallpaper_hd_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/redabidagofofozuxu.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/96755173851.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/chaos_theory_psychology.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/90347406487.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_off0000efb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB8 5616 bytes
SHA-256: 40a14f9f43635cd553266c750cd2b9ad2cd83541ce46d6c7885b68dd7b54957a
font_01_sfnt_off000102e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102E4 11208 bytes
SHA-256: 4a35b178141f850c41881e9daddfb8a4d05e9afe1848e4c60fa832cf331aa47a

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