Malicious PDF — malware analysis report

Static analysis result for SHA-256 27ff55498126fdc9…

MALICIOUS

PDF

88.7 KB Created: 2021-03-16 07:37:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 496e2182cf9c685d50ba134109ed72bc SHA-1: 2b63aee3e51d70a80988d0037a5eb31461c6b3af SHA-256: 27ff55498126fdc90ef3492414df24e6c519a08432e5e812d4450962d28e4124
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, disguised with a seemingly benign topic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection profile suggest it's designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/aws?utm_term=best+self+cleaning+litter+boxes+for+large+cats
    • http://lunatan.medianewsonline.com/5th_battleship_squadron.pdf
    • http://poposiruta.mywebcommunity.org/agglomerative_hierarchical_clustering.pdf
    • http://vuvabadiredowa.getenjoyment.net/acopermnt_maicii_domnului_acatist.pdf
    • http://gelufose.scienceontheweb.net/warapazutonesajobirupoto.pdf
    • http://pebonemariv.mypressonline.com/how_do_you_program_a_universal_remote_to_a_tcl_smart_tv.pdf
    • http://farozemirig.scienceontheweb.net/five_minute_activities_for_young_learners.pdf
    • http://trynon.xyz/who_plays_james_potter_in_19_years_laterw5hk2.pdf
    • http://keniworu.mywebcommunity.org/bigipudesikebugezizo.pdf
    • http://geosen.net/pisa_city_guide_offline_maps_tours_and_hotelswn96v.pdf
    • http://ziximotizaned.medianewsonline.com/que_es_materialismo_historico.pdf
    • http://xazapefunel.getenjoyment.net/app_inventor_2_essentials_free_download.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/e2ee22dc-bf84-4041-a466-89b04fd0bf65/troy_bilt_weed_eater_spark_plug_replacement.pdf
    • https://uploads.strikinglycdn.com/files/f378a908-b217-4cc0-9232-933dd2abf7b5/62894756664.pdf
    • https://s3.amazonaws.com/rurovikejigibu/awareness_book_anthony_de_mello_quotes.pdf
    • http://neloralo.myartsonline.com/25934275499.pdf
    • https://s3.amazonaws.com/ladiwuzetawedi/ashrae_standard_202.pdf
    • https://s3.amazonaws.com/fezenur/4812014320.pdf
    • https://uploads.strikinglycdn.com/files/da0ffb7d-86d5-4158-9707-0383596a2e13/lakshmi_nrusimha_karavalamba_stotram_english_lyrics.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011bfd.bin
b5a4afebdbadd05afd7c6896bdc27d6e9bda491a29b41bdd53bf882a04cb7ff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11BFD 5304 bytes
font_01_sfnt_off00012e28.bin
cd412502a35375139a5bfc585bd925d3c37fd11f5861f43ba7c909c57222c2fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E28 11836 bytes

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