Malicious PDF — malware analysis report

Static analysis result for SHA-256 469b6f4905465415…

MALICIOUS

PDF

90.2 KB Created: 2021-03-13 18:29:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0e6c2bad085c8f25a36a633d9074ac64 SHA-1: e0945d4271de10915348e318292a9eb414eec5d3 SHA-256: 469b6f490546541560b65792401d16febfbd3becf77ee37542d5f70d809a5c98
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable domains or link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment, likely leading to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/strik?utm_term=what+is+ap+seminar+exam PDF link annotation
    • https://cdn.sqhk.co/pozazoji/jbyieji/exodus_20_commentary.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/bCjcdic/color_legend_in_tableau_dashboard.pdfIn PDF document text
    • https://cdn.sqhk.co/kinifukix/fYegdZi/sunitivasiju.pdfIn PDF document text
    • https://cdn.sqhk.co/takejirasomu/AgeBHii/43619441452.pdfIn PDF document text
    • http://nebofimanigi.sportsontheweb.net/is_iron_less_reactive_than_copper.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/download_film_fifty_shades_darker_2018_sub_indo.pdfIn PDF document text
    • https://cdn.sqhk.co/fabetojowuje/3bqjg2a/snail_bob_adventure_games.pdfIn PDF document text
    • http://sutivetowit.mypressonline.com/jezonuf.pdfIn PDF document text
    • https://cdn.sqhk.co/lunapolakezo/ehiijjo/coloring_pages_for_animals.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446152/normal_603837cac625c.pdfIn PDF document text
    • https://cdn.sqhk.co/javijaxim/NCjeidd/the_flash_tv_series_hd_wallpapers.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/80624647316.pdfIn PDF document text
    • http://dojemop.mywebcommunity.org/twilight_saga_2008_full_movie_watch_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500877/normal_6032cccb871d7.pdfIn PDF document text
    • http://xedowoduwonaf.iblogger.org/what_are_7_weaknesses_of_the_articles_of_confederation.pdfIn PDF document text
    • http://zewugivufo.22web.org/how_to_pass_chem_100.pdfIn PDF document text
    • https://cdn.sqhk.co/vinasujitupe/pa0hdiX/skater_boy_aesthetic_girl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480899/normal_60354e19461c6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466154/normal_5fd0927ec5a47.pdfIn PDF document text
    • https://cdn.sqhk.co/miropefaneka/hfif6ZW/turoxaso.pdfIn PDF document text
    • https://cdn.sqhk.co/fexiseme/Voicx6B/7771438954.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380210/normal_5fc6711ce5b53.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vetozidute.rf.gd/fezanaresapili.pdfIn PDF document text
    • http://gitinilu.epizy.com/abrsm_piano_grade_1_2020.pdfIn PDF document text
    • http://niwerujegip.epizy.com/license_to_drive_worksheet.pdfIn PDF document text
    • http://konagesef.epizy.com/adenovirus_tratamiento.pdfIn PDF document text
    • http://fewulagoxifi.epizy.com/bavixezim.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_off00012477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12477 5108 bytes
SHA-256: f132e0d0fd0f2422de5b8922a7f7c1fd7618852c6aaf8f206d130661873cf2b2
font_01_sfnt_off000135b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135B8 10912 bytes
SHA-256: cc918ed896517440ad57abaa703aedfd081dfe202d0ff42ff61e2572ba7b8b61

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