Malicious PDF — malware analysis report

Static analysis result for SHA-256 be4ae7c449edd4b2…

MALICIOUS

PDF

77.1 KB Created: 2021-05-07 23:59:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 3284cf726db4091a77aa77008779bfe6 SHA-1: 2151ea8bbee142159915625d39224e62d279efe3 SHA-256: be4ae7c449edd4b2406ba65723d4b9442e4a873add88e80a673e48bef714cfae
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result, a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While 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 0.9993

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://kuzutuzo.ru/strik?utm_term=why+does+my+hunter+ceiling+fan+light+blink PDF link annotation
    • https://cdn.sqhk.co/pujixefan/hoDjijj/jixelaxitilojunaraw.pdfIn PDF document text
    • https://cdn.sqhk.co/gejupajo/iihlbzO/22552261138.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/gfY8IMG/guilty_crown_anime_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/c1N2v23/9936433674.pdfIn PDF document text
    • http://gutagige.sportsontheweb.net/bluedio_bluetooth_headset_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/soxesemu/hLEhf1t/racing_traffic_car_speed_apkpure.pdfIn PDF document text
    • http://mesikigodijope.mypressonline.com/cahier_de_charge_d_un_site_web_dynamique.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/tapexiw/pedagogy_mcqs_with_answers_for_fpsc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c14958c5-dca7-490c-807b-91c88935f91c/what_can_i_cook_in_my_turkey_fryer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1c4388d-317e-48a1-b151-4e7bc764f7e5/30700316688.pdfIn PDF document text
    • http://lifobem.myartsonline.com/36742126518.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de0c743d-783b-4b38-8722-7b42cdd68467/ributozaxuregasexotu.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/2018_cadillac_xt5_luxury_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5db2308c-cbb2-4d2d-88bf-50896f62cf20/garmin_50lm_specifications.pdfIn PDF document text
    • http://jumawivowibeb.onlinewebshop.net/gojoliwotajiv.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/biwedizovaluv.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/47781749896.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/tutumutosokuzojifinixoz.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/modal_verbs_exercises_upper_intermediate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b253eea-972f-455c-888b-d48821a63884/31265371672.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39b3c167-dd04-4795-b62d-9567d8b68168/luzonurane.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/brain_test_questions_and_answers_in_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91543e17-862d-4ec7-a202-cb6a6de1f42e/toefl_vocabulary_book.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_off0000ede2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE2 5752 bytes
SHA-256: 044bc3a1e0db191eeea860bd67f1ee8df64dc181dffa4463f169ff5fbd696080
font_01_sfnt_off00010160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10160 11100 bytes
SHA-256: cfde3d4a0fd05a3d5d674f209ed85645a41a7d59d9680c88e70e9c4fa64e2a9b