Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b24009c3dc7d00a…

MALICIOUS

PDF

83.6 KB Created: 2021-02-17 05:00:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: aa45a38997eba095e467bc3f36778ac1 SHA-1: 28bb67d058319202520633a59cda37b1846ef132 SHA-256: 5b24009c3dc7d00ad9f27215266092b98f3c4c2df522b5dd8a5483c05cbd1d0a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://jacksth.ru/strik?utm_term=whirlpool+washing+machine+repair+service+center+in+vizag PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450898/normal_5fd32a35941b3.pdfIn PDF document text
    • http://proita.space/breaking_bad_season_1_kickass_720pfjyfi.pdfIn PDF document text
    • http://soldonlittleton.com/66787695867sg6ax.pdfIn PDF document text
    • https://cdn.sqhk.co/vuritukupus/cjax5pO/pc_building_simulator_3dmark_score_4958.pdfIn PDF document text
    • https://cdn.sqhk.co/vawapisoxe/hfX9jae/lonaligozewedifawo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392861/normal_5fda2553e2b7b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416932/normal_5fe41e7025e8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495042/normal_5fd8f52fa9744.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486034/normal_5ff2854b6a999.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/gchajfX/minimal_beli_pulsa_listrik_di_indomaret.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464070/normal_5fee1d41cebbe.pdfIn PDF document text
    • https://cdn.sqhk.co/gevagedubop/agfJnjb/stockyard_restaurant_boston.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408587/normal_60208c18329b0.pdfIn PDF document text
    • https://cdn.sqhk.co/rogekanus/goyjjiU/england_games_euro_2020_on_tv.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/kesumasaka/neet_application_form_2019_photo_details.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/32702289265.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/championship_manager_2011_java_240x320.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/corpse_party_blood_drive_chapter_3_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/word_labels_template_24_per_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/fijarakajabe.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/84127328342.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_off00010ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC2 5564 bytes
SHA-256: 706897fa8e9dabfefd13bb90db2ca76670e4bb50e7ebf4dd7876430ed0530909
font_01_sfnt_off00011da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DA5 10240 bytes
SHA-256: 3789ee35dd4f12e3c2265185d8aa4bebdc62baf79c40f05c0ee0262cca55bd35

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