Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f4bbf82f331497…

MALICIOUS

PDF

76.3 KB Created: 2021-03-02 22:24:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 4da9c2526eb592534c5175b28192d834 SHA-1: cf3e1bc95f3200d5818563d45e4c8ce86e0de8a4 SHA-256: f7f4bbf82f331497caa3c601c772250faade583f921e3acde02f6749c2bfd8f7
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting the document is designed to redirect users to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with phishing or malware delivery attempts.

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=masterbuilt+sportsman+elite+electric+smoker+cover PDF link annotation
    • http://sujurafumub.22web.org/brandon_grotesque_family.pdfIn PDF document text
    • https://cdn.sqhk.co/xidatelo/imVK0jc/spy_museum_online_store.pdfIn PDF document text
    • https://cdn.sqhk.co/susojitigi/IFgjFJg/vidiq_chrome_extension_installed.pdfIn PDF document text
    • http://bajifepeselok.sportsontheweb.net/vabemipafizat.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/VySphiR/rxsaver_prescription_drug_discounts_coupons.pdfIn PDF document text
    • https://cdn.sqhk.co/jigekuragige/gUhgTZQ/first_electric_truck_gmc.pdfIn PDF document text
    • http://wugumonisukanib.sportsontheweb.net/painting_with_a_twist_type_places_near_me.pdfIn PDF document text
    • http://zagavexakagin.mypressonline.com/73499731440.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/nazekisigiduz/honda_civic_android_auto_bluetooth.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/nibemabuxe.pdfIn PDF document text
    • http://piwefijegiv.epizy.com/football_quiz_game_answers_level_3.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/14107842606.pdfIn PDF document text
    • http://namakanexir.atwebpages.com/what_is_the_pursuit_of_knowledge_tok.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/bojadob.pdfIn PDF document text
    • http://koxaxinum.epizy.com/australia_post_customer_service_complaint_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/xofiperotodujupugoxo.pdfIn PDF document text
    • http://godawawisegi.epizy.com/54035261310.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/79197279127.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/xefajuxavulotupijo.pdfIn PDF document text
    • http://wukefomirufiza.rf.gd/jetasixovafanijibibolow.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_off0000e867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE867 5348 bytes
SHA-256: 3d5e7a7523d90decb67fc5834005c904aec98c4d537b16dce91a42cef78c2d67
font_01_sfnt_off0000fa92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA92 11496 bytes
SHA-256: 28aae42068a9b54b7597b678dbe67c63131a5b81c36938ec6340725aa7946e69