Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1f21de7bba9bdad…

MALICIOUS

PDF

68.9 KB Created: 2021-03-08 08:49:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 2c86ce0d3616f4ea02bd51da58179a69 SHA-1: 741aac3bb510672ef280f8c1665ad6ac2d6ad0db SHA-256: f1f21de7bba9bdad2179653b02b28aa711c64491c91edbadc5a1f4b4ae1a0df6
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as a potential phishing or malware distribution point. The document body, though heavily obfuscated, appears to be a lure related to movie streaming. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://zajinet.ru/award?keyword=dr+jekyll+and+mr+hyde+film+2008+streaming PDF link annotation
    • http://vipadobotisituz.mygamesonline.org/primal_blueprint_diet_meal_plan.pdfIn PDF document text
    • https://cdn.sqhk.co/lebogomatoze/ijgchfL/smash_champs_mod_apk_unlimited_money_download.pdfIn PDF document text
    • http://kurepez.22web.org/emotive_language_worksheet_year_4.pdfIn PDF document text
    • https://cdn.sqhk.co/janezewufaj/jax9ibj/dropwizard_tutorial_metrics.pdfIn PDF document text
    • https://cdn.sqhk.co/tefaxobaf/jihjYOY/escape_game_hard_time_3.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimole/UeojbMZ/energy_anti_stress_loops_apk_uptodown.pdfIn PDF document text
    • https://cdn.sqhk.co/dofewijoras/hc4PhjT/fire_truck_sirens_download.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/mukut/androcles_and_the_lion_play_script.pdfIn PDF document text
    • http://dekotugod.epizy.com/have_a_cup_of_tea_meaning_in_malayalam.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/61122309369.pdfIn PDF document text
    • http://pinogizege.rf.gd/faxonimames.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/pubawuvawumov.pdfIn PDF document text
    • http://xebowuruno.epizy.com/89996606415.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/cecilia_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/soxibixizuvubaxarobij.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/contrato_de_arrendamiento_de_casa_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/delhi_schools_air_pollution_report_today.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/adobe_media_player_for_mac_free.pdfIn PDF document text
    • http://gibidapasajug.atwebpages.com/tikegaxitanazel.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/fozosujolopezogesajiz.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/crystal_reports_viewer_old_version.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_off0000ce1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE1A 6028 bytes
SHA-256: ec5e3ffd22f59e3879438804128751872825f47e4fd3b05fde37c5b15a52f5df
font_01_sfnt_off0000e291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE291 10376 bytes
SHA-256: a89c8bc9143e74e4b53eb899de66dd38d5b51b12de4af675096a3e434440a45a

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