Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8726d8ac67ee0e9…

MALICIOUS

PDF

108.4 KB Created: 2021-03-18 12:37:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 005f12a0525ce725603e5501db58cd4c SHA-1: 562d6114ee9976cb15eac56f5949c3edddffe68b SHA-256: e8726d8ac67ee0e9162024cefeb71a72ee639016fa92edf5a4481f1915df98d9
126 Risk Score

Malware Insights

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

The PDF contains embedded URLs and is flagged by heuristics as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/wix?keyword=hyper+tough+cordless+rotary+tool+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416316/normal_60385d8c64f35.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/speed_queen_dryers_at_lowes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413583/normal_5fdd136f02c5f.pdfIn PDF document text
    • https://cdn.sqhk.co/zebapomiz/Kid7hhi/rozadawukanakukiseruxemig.pdfIn PDF document text
    • http://xemakaze.mywebcommunity.org/aint_i_a_woman_speech_full_text.pdfIn PDF document text
    • https://cdn.sqhk.co/puwukuwos/bEhd8jg/usa_field_hockey_national_futures_championship_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488336/normal_603162528af53.pdfIn PDF document text
    • https://cdn.sqhk.co/mojafefegamo/hQOnhdz/furious_death_car_race.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465003/normal_60036d3dd1d9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444117/normal_601791e505d74.pdfIn PDF document text
    • https://cdn.sqhk.co/tovisegag/jgHggjj/youth_rewards_cash_apple.pdfIn PDF document text
    • https://cdn.sqhk.co/sazipuvaxiv/ijjahcU/putasejulorarek.pdfIn PDF document text
    • https://cdn.sqhk.co/neruxojus/djRslEL/techcrunch_disrupt_nyc_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/xiruregexibe/jajigi0/nonef.pdfIn PDF document text
    • https://cdn.sqhk.co/zuvifilezaja/gj6zw60/jinogetewalamomezosumeb.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/qCFbfIF/free_funeral_program_brochure_psd_template.pdfIn PDF document text
    • https://cdn.sqhk.co/tujujelo/Wr6Hujj/the_adventures_of_tintin_full_movie.pdfIn PDF document text
    • http://zifufarox.getenjoyment.net/cermet_resistor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388426/normal_600dd95b3feda.pdfIn PDF document text
    • https://cdn.sqhk.co/kedetofido/igqhfhh/arena_simulation_program_free.pdfIn PDF document text
    • http://naligixe.getenjoyment.net/teginaxikuzuvigamem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xekapakifujekem.onlinewebshop.net/72786831309.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_off00016b52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16B52 5548 bytes
SHA-256: 5e740771b624bce4db95179f3c332925ac00a80f54c29b9cce9b8af36ddac96b
font_01_sfnt_off00017e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E13 11144 bytes
SHA-256: 3dc0ff3c9d8da2d57c78e941c67d6bb04f99e618eec12007e34cbeca282afdaa

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