Malicious PDF — malware analysis report

Static analysis result for SHA-256 8611eec386e6bf8d…

MALICIOUS

PDF

76.9 KB Created: 2021-03-05 15:47:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: afc8f274eeababf501de1bd4a17f85f8 SHA-1: 22fb084139275c6e9874d1a6cba6117feb878f0f SHA-256: 8611eec386e6bf8d90088323a9859d407696600108d876b76d94804ad9a11f04
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or social engineering attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of external URIs and the document's structure suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://ponafet.ru/strik?utm_term=what+does+ankle+jewelry+mean PDF link annotation
    • http://zanovekolasin.mywebcommunity.org/what_does_firmament_mean_biblically.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/nja8yii/kung_fu_panda_quotes_turtle.pdfIn PDF document text
    • http://kelimap.mywebcommunity.org/sabimi.pdfIn PDF document text
    • https://cdn.sqhk.co/gewanunu/BcgjgvB/toy_cars_for_toddlers_to_sit_in.pdfIn PDF document text
    • https://cdn.sqhk.co/besawevij/jyghgiu/11330196346.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/31922806908.pdfIn PDF document text
    • https://cdn.sqhk.co/kakapoxavu/gcqiaTH/vikings_new_world_order.pdfIn PDF document text
    • https://cdn.sqhk.co/kapipota/ejhtmNb/assembly_line_justice_generally_refers_to.pdfIn PDF document text
    • http://delaem-sami.online/number_plate_sticker_shop_near_met4op6.pdfIn PDF document text
    • http://punavuvipufov.sportsontheweb.net/nhac_thieu_nhi_soi_dong_xiec_ca_heo.pdfIn PDF document text
    • http://antonioita.fun/khatrimaza_bollywood_movies_2010dolyg.pdfIn PDF document text
    • https://cdn.sqhk.co/tubadaluzafu/Tigirie/pewejerodatikakisi.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/gagotaniwipure/nezegefekemukolokiwu.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/fevad.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/kopifagokupon.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/bioscope_prime_app.pdfIn PDF document text
    • http://kawerulim.onlinewebshop.net/power_xl_air_fryer_cooking_times.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/game_guardian_tutorial_android.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_off0000ee52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE52 5412 bytes
SHA-256: ffd53132ab32ddfc3d1ed96d452acd90c61c31bb9360d9c2ebc501cf5b497d17
font_01_sfnt_off000100ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100AD 10668 bytes
SHA-256: 6968d8ac9565b0c9881617f20a1446568c8f4d17f0370246b73fb035460f19cd

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