Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ca696485e82d198…

MALICIOUS

PDF

73.2 KB Created: 2021-03-03 11:09:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 719183f4ee2faac39dff91aaa81e0e8b SHA-1: 0a91ad05bb97fc2df8d9e9a5561062bf50ad1e10 SHA-256: 1ca696485e82d198aa3350b84b9d36a3289eb3836614160fef1184c39282e041
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 0.9998

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://dugedepap.ru/strik?utm_term=formalist+literary+theory+example PDF link annotation
    • http://tupaxeguna.scienceontheweb.net/93153237131.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477386/normal_5fc6056f23901.pdfIn PDF document text
    • http://hangzhoumetal.ru/let_the_king_of_my_heart_lyrics_bethelyup5a.pdfIn PDF document text
    • http://medgaj.com/juxubedakadapufi6wpi9.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/best_comments_for_report_card.pdfIn PDF document text
    • http://lapiwudoxavov.scienceontheweb.net/27579453174.pdfIn PDF document text
    • https://cdn.sqhk.co/terasovo/hbxOhbs/faluvugigegu.pdfIn PDF document text
    • http://dilawiputonu.mypressonline.com/subway_menu_prices_california.pdfIn PDF document text
    • http://ca-management.website/75562604141bc0qu.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/vocabulario_sobre_alimentos_y_bebidas_en_ingles.pdfIn PDF document text
    • http://yarrebitteh.online/bukonusawizodajolovuremasglos.pdfIn PDF document text
    • http://sibatike.getenjoyment.net/63490431816.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/tuxenipup/algorithm_maths.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/cartoon_network_tv_app_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/nojojuxekotovu.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/android_emulator_proxy_server.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/libro_de_fsica_universitaria_13_edicin.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/travel_magazine_template_wordpress.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_off0000e21d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE21D 5184 bytes
SHA-256: 4907ec7fed6fd744ea0d09a2a0ebac18dca12b0f440a28870a78cccbddbd94d8
font_01_sfnt_off0000f39d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39D 10520 bytes
SHA-256: bd02e0dc61e6cafc9862755be82212dd3c603e845c55db2ecd7305d4a5453364

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