Malicious PDF — malware analysis report

Static analysis result for SHA-256 422056757d76d226…

MALICIOUS

PDF

84.9 KB Created: 2021-03-21 00:08:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6652163b0afd96f104ee84ff50968b87 SHA-1: 9533ca148e51384fb92ca1ee5a686f5c5dd12528 SHA-256: 422056757d76d226d46cd44babf39a0902fa647100cdeab1efc756d14d945a77
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 0.9997

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://leonvi.ru/strik?utm_term=timex+1440+sports+watch+battery+type PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369152/normal_5ffa9585a6777.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479460/normal_6002246baf837.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373520/normal_5feb0d14da0c9.pdfIn PDF document text
    • http://vulgargirls.fun/accelerator_plus_dap_10_premiumh3ejj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451350/normal_5ffb062e60864.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491450/normal_5fd9f3b0b5732.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411483/normal_5fdd19c64e5e9.pdfIn PDF document text
    • http://kigaruzolalo.mypressonline.com/frightful_s_mountain_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467007/normal_5fea0237176a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377912/normal_5fdaa8cdc3f26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369522/normal_5fd710a48a17e.pdfIn PDF document text
    • http://sendgrid-de.com/how_to_read_aggregate_report_in_jmetern77y7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470703/normal_6013ea9dc323f.pdfIn PDF document text
    • http://pubgucbayim.com/the_laramie_project_main_characters5wsdq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417140/normal_60049799eb232.pdfIn PDF document text
    • http://suraneb.scienceontheweb.net/belajar_membaca_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366632/normal_5ffc19b4ae73c.pdfIn PDF document text
    • http://mgacessoria.online/functional_movement_screen_exercise_selection410ew.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/bubeto/how_to_calculate_prevailing_wage_in_massachusetts.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/character_sketch_of_king_in_damon_and_pythias_play.pdfIn PDF document text
    • http://visevagopar.onlinewebshop.net/chassis_frame_design.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/richard_nixon_movie_star.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_off00010b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B1F 5776 bytes
SHA-256: d8106321316ad6dabd43e7cdd8c52a69e142eaf0d0d9b5de8854d50dea881d8e
font_01_sfnt_off00011ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EC2 11072 bytes
SHA-256: 3a6db74c8172c38a12ce824d7940a2f9663f6cf75c3e4829eef34347c30cbf80

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