Malicious PDF — malware analysis report

Static analysis result for SHA-256 003f2b945a8e66c0…

MALICIOUS

PDF

74.1 KB Created: 2021-05-09 04:41:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 00b4bc323559a3d2122da0c006021025 SHA-1: ed55fc8ca24ce884eff0957c58d672696d65b410 SHA-256: 003f2b945a8e66c02e37999487a2270a489e8004f8f5f60f5d45ff8b08c7aa6f
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://midufefew.ru/strik?utm_term=english+to+spanish+translation+app+for+iphone+free', is presented in a context suggesting a lure for a translation app, which is a common phishing tactic. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators of a phishing attempt.

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://midufefew.ru/strik?utm_term=english+to+spanish+translation+app+for+iphone+free PDF link annotation
    • http://capridigi.com/how_to_reset_whirlpool_duet_washer_door_lockf36qi.pdfIn PDF document text
    • http://ritefajitexu.scienceontheweb.net/aqeedah_tahawiyyah_explanation.pdfIn PDF document text
    • http://copyrightproblem.com/transformers_robots_in_disguise_drift_vs_fracture6okm2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477400/normal_600e8e32cc31e.pdfIn PDF document text
    • http://dreamingdeveloper.com/best_blues_guitarists_2020eb7i0.pdfIn PDF document text
    • http://chambrehq.xyz/battlefield_4_keygenu6pnl.pdfIn PDF document text
    • http://topshops.website/parrot_mki9200_remote002pe.pdfIn PDF document text
    • http://vudasuti.mygamesonline.org/luzudevizurazasuvutig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382960/normal_5feb7f6dea169.pdfIn PDF document text
    • http://freud.icu/kaplan_asvab_prepnoz2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369905/normal_605a1dad9c7bd.pdfIn PDF document text
    • http://submonster.xyz/manual_of_love_2_trailerhx79r.pdfIn PDF document text
    • http://xofitazuregokud.mywebcommunity.org/credit_card_statement_sample.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389793/normal_6038255deb13d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494166/normal_5ff53255eb290.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/fipijife/rajatiwowanusebevezu.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/tv_addiction_ielts_reading_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/romeo_and_juliet_key_quotes_act_3_scene_2.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/gree_air_conditioner_remote_control_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sedowedi/dawujuwolabusajovuvefuk.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/service_quotation_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/nokia_6._1_plus_get_android_10.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_off0000e72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72E 5120 bytes
SHA-256: 9cdea7da62c6362a17a00cd95790360c8aba2a6cc46b33f8fb18dae6d5dbaeb3
font_01_sfnt_off0000f89a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF89A 10132 bytes
SHA-256: 8e6f334f99dad485875cf000454d1751cf579ce5c1d6bb595523e2b41df246b5

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