Malicious PDF — malware analysis report

Static analysis result for SHA-256 e186389bda3350ae…

MALICIOUS

PDF

83.1 KB Created: 2021-03-23 14:10:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 50d5efa959286a3abd3ecae544e6dd8b SHA-1: bd1b1c9dc56140489b42ae5411d71b296fc22a97 SHA-256: e186389bda3350ae06a6580a7f6307dde038be775cf5c565bd3fecefa9d28894
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous embedded URLs, many pointing to disposable domains and link farms, strongly suggests a phishing or malware distribution attempt. The ML classifier also returned a high confidence score for maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://golowaki.ru/strik?utm_term=hp+pavilion+dv6000+price+in+pakistan PDF link annotation
    • http://legalvictory.group/no_one_writes_to_the_colonel_summary_sparknotesyro3m.pdfIn PDF document text
    • http://want-seo.ru/low_cost_housing_seminar_reportdlh5a.pdfIn PDF document text
    • http://witaseru.iblogger.org/71121418098.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475853/normal_5fd110161e4c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391915/normal_601d58fd65abf.pdfIn PDF document text
    • http://dektesheff.xyz/autocad_software_download_for_macafw4p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_5fd613d0a2c2b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451930/normal_5fe512ec71655.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379605/normal_6022d1a639f05.pdfIn PDF document text
    • http://bighome.space/learn_to_draw_for_adults_books0k7hu.pdfIn PDF document text
    • http://medyayazilimtr.com/womolabopupi1nchv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417992/normal_5fcb20150ab2f.pdfIn PDF document text
    • http://frukt.fun/articles_on_education_system_in_pakistanvcf9q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374359/normal_5fef0e407733d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416811/normal_60275a6c1eab9.pdfIn PDF document text
    • http://reassurez-moi-fr.info/the_mortal_instruments_city_of_bones_gay_characterspiilo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404965/normal_602abefdd7623.pdfIn PDF document text
    • http://playmarket-online.com/how_many_carbs_in_krispy_kreme_donut_holesr7enu.pdfIn PDF document text
    • http://baltika-trans.ru/41116714699rd3ab.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/db5fc84d-f952-4dcd-a14c-4035c10f9674/62213489179.pdfIn PDF document text
    • http://jusaketij.rf.gd/97019767278.pdfIn PDF document text
    • http://tiluremuxaz.epizy.com/episode_guide_downton_abbey_season_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ca1bc55-45d2-4bcb-a683-7d21f431b1f0/what_is_the_best_charger_for_samsung_galaxy_s7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1c2ac28-d690-4a8c-8c3b-2d7ecc4f5c4f/how_to_light_pilot_light_on_potterton_boiler.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_off0001060a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1060A 5448 bytes
SHA-256: 745b756eed097eb983536740c079236f7416c09410a38a9525b8aab9101c246b
font_01_sfnt_off000118a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118A1 11272 bytes
SHA-256: fd4f68319d2ea0c39b8bf3cebe5d3bc35600f58f4fe415452a33d2ef80b5a7fc

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