Malicious PDF — malware analysis report

Static analysis result for SHA-256 595791a9641cbed2…

MALICIOUS

PDF

76.1 KB Created: 2021-04-13 01:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 0d7e2af8d5d9efe7df6af4f7cdeb67e3 SHA-1: ecda7b9e116ddddec6bb6eb3c0b5cc1344bc9fe0 SHA-256: 595791a9641cbed207095dc30d31d6dcc0f5f33a31cfd2342e33c069e19e7f66
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating an external URI and embedded URLs, with one URL pointing to a suspicious domain related to a product search query. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or a scam. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/strik?utm_term=whirlpool+dishwasher+wdf520padm7+not+cleaning PDF link annotation
    • https://cdn.sqhk.co/pefevepufi/hhgdric/piano_lessons_near_me_adults.pdfIn PDF document text
    • https://cdn.sqhk.co/sidogorego/cjo3jhX/26982778145.pdfIn PDF document text
    • http://vigastlens.xyz/cestina_express_2j1e27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381091/normal_5fe5612215b97.pdfIn PDF document text
    • https://cdn.sqhk.co/togodawexu/S7hcBg9/prison_break_cast_season_1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382418/normal_5fc98a722edf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449172/normal_6028085845a08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387419/normal_60607eb38177f.pdfIn PDF document text
    • http://job-finder.space/bein_sports_turkey_tv_guidezmtf2.pdfIn PDF document text
    • https://cdn.sqhk.co/bifepupama/ghf6LED/transunion_credit_report_dispute.pdfIn PDF document text
    • http://love-your-lips.online/agitator_design_calculation88mgr.pdfIn PDF document text
    • http://helpforteam.com/visamebozadocm8w.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/iibTijz/71254142623.pdfIn PDF document text
    • http://jsexj.fun/xofoma1glu0.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/vexeliku/2018_breeders_cup_entries_past_performances.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/care_home_resident_satisfaction_survey_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/bombay_movie_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/asrs_report_faa.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/medidas_del_bloque_de_concreto.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/busazajevenujoteduwejo.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/xomefosenulakulub.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/14011372929.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_off0000eb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1C 6152 bytes
SHA-256: df2e3ddc3700cb05588bd4148b260256f2af2e6165691d58dd8a7335057ee3f4
font_01_sfnt_off00010009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10009 10532 bytes
SHA-256: e93231fb2f36b8f2751ae1024cbd51df85390b8363e78a15bf74c59b514606b0

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