Malicious PDF — malware analysis report

Static analysis result for SHA-256 08ccbdf04623b807…

MALICIOUS

PDF

81.6 KB Created: 2021-03-16 13:22:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 128c60a381287688c2762de79e3e203a SHA-1: 4f3bbda4d85743a648d095c8ad79f01f61a05e66 SHA-256: 08ccbdf04623b8077ec5fdf4bdcc3a4b5718b69ca50610a735599f89fff036b8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ML and ClamAV, indicating malicious intent. It contains numerous embedded URLs, with at least two pointing to suspicious domains ('leonvi.ru' and 'mizafaroremida.getenjoyment.net') that appear to be part of a link farm designed to redirect users. The presence of these URLs suggests the document is used to drive traffic to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=comcast+email+not+sending+android PDF link annotation
    • http://mizafaroremida.getenjoyment.net/bissell_powerforce_helix_turbo_bagless_vacuum_2190_belt.pdfIn PDF document text
    • https://cdn.sqhk.co/xenumobavun/40Cyvge/ieee_conference_latex_template_multiple_authors.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424672/normal_60466aed78970.pdfIn PDF document text
    • https://cdn.sqhk.co/resilano/gc4yifj/junudadagisifigibinus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457838/normal_6036e0f612733.pdfIn PDF document text
    • https://cdn.sqhk.co/bidogefapo/CifUhaZ/3670152987.pdfIn PDF document text
    • https://cdn.sqhk.co/wazikunal/jcxnMuJ/tevanazaduwix.pdfIn PDF document text
    • https://cdn.sqhk.co/widexerun/gijhT6E/sebum.pdfIn PDF document text
    • http://kesuvajeb.scienceontheweb.net/flight_of_the_bumblebee_sheet_music_clarinet.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/how_to_use_treadmill_without_ifit.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/jhAj4ja/96334831097.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476275/normal_6017433c5a47b.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/NgftLgh/pocket_billiards_defined.pdfIn PDF document text
    • https://cdn.sqhk.co/torazanopuni/gWgejd2/princess_dress_up_games_y8.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/sezebepit/gatukajogujabugipif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2be374a2-c5e9-43fa-adb9-9bb596802e26/ethiopian_bible_88_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c7ffbf1-6c3f-4255-9154-d964646e6ae9/mikurazuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/rugazago.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a7e0b1c-a07a-4493-8dfc-1157c155f76f/mobamubifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d471fda9-3618-4caa-a9ac-f2c53ef80b1d/uad_eventide_h910_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/contemporary_linguistic_analysis_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/internet_of_things_2018.pdfIn PDF document text
    • http://nerezusilanake.atwebpages.com/xezuv.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_off000101a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A0 5164 bytes
SHA-256: c941aff6bf1d4f609f7c5aca5c8851bccb1c308888fa3a098f2353ca3832850f
font_01_sfnt_off0001130d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1130D 11140 bytes
SHA-256: cd7c7c02c2c14d41225ad4804c1e5791cf2de8e9edb262db4f8e2b0dfa5fdb0b

Open this report in the interactive analyzer, or submit your own file for analysis.