Malicious PDF — malware analysis report

Static analysis result for SHA-256 228d258742b6274f…

MALICIOUS

PDF

71.9 KB Created: 2021-03-25 09:06:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3af923567fa89660abc7aa2b7e6ba82f SHA-1: 2898ecffa5ff2f2c9b3d906b9ccfeb7b7c5ee9ec SHA-256: 228d258742b6274f33a2291768078457c4ba4e567aa7df9cff2da57d0bbb4b87
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=bissell+proheat+turbo+belt PDF link annotation
    • https://lizotolagodega.weebly.com/uploads/1/3/4/4/134495854/nowenalatupofa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495854/normal_604e86f610ee9.pdfIn PDF document text
    • https://rixafewokeget.weebly.com/uploads/1/3/0/7/130739987/taduwaxefunekikisu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411479/normal_6005d99d6f3cb.pdfIn PDF document text
    • https://jukonejidar.weebly.com/uploads/1/3/4/8/134876273/reluleluligeket-sepuveturopu.pdfIn PDF document text
    • https://mojenosude.weebly.com/uploads/1/3/1/3/131382274/ronojeben.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486199/normal_6014f38c4d34a.pdfIn PDF document text
    • https://cdn.sqhk.co/rawewosit/jarjiv5/how_to_design_light_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458412/normal_60118a981ca1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470035/normal_604300569c6c3.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/dgjwFji/bomowudozefakukuniwapekaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462352/normal_6039547bf0dff.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5430ee79-4847-4aa6-b899-230153412afc/how_much_is_a_2020_camry_xse.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/86504363298.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/ashrae_handbook_hvac_systems_and_equipment.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/avengers_endgame_desktop_wallpaper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4bed98c-5150-42ba-a27d-3bcf582c2880/emily_larsen_washington_examiner_wiki.pdfIn PDF document text
    • https://s3.amazonaws.com/luropiw/how_to_keep_leftover_food.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/merry_christmas_songs_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2299c77-d845-429a-8b22-d47adbe9c431/what_was_mr_darcys_first_name_in_pride_and_prejudice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a655206a-5ab8-45f8-a82f-3badeb77029b/32673416751.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd695cca-7b67-4ba7-a7bf-64b3f84e2c24/97314067812.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_off0000da86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA86 5096 bytes
SHA-256: 7e845835a36c31196d9462ad8beb4c4de712624db4bb2af574b864bf65f2bd41
font_01_sfnt_off0000ebca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCA 10788 bytes
SHA-256: cd16fa6f41f8f36c257718bec6cc57066fbfca977ad38042e8478b1ab2b869b3

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