Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b036d833f4c48b…

MALICIOUS

PDF

79.8 KB Created: 2021-03-03 01:57:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 443dbae6d1409dc28d9f667e060d30db SHA-1: fc6b2967613a5db88415ccbb28ef415a91253d94 SHA-256: 46b036d833f4c48b287995e716c0fe2473e4f742ad04b5ead6fcbf1cc372e07e
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF document that uses a social engineering lure to prompt the user to install a browser extension or update, a common tactic for malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of embedded URLs suggests the document is designed to redirect the user to malicious sites for further exploitation or payload download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://bologen.ru/strik?utm_term=pdf+to+midi+musescore PDF link annotation
    • https://cdn.sqhk.co/kezavilageg/a30jfjg/27274977976.pdfIn PDF document text
    • https://cdn.sqhk.co/fabetojowuje/g0DEifz/tigusezijebotag.pdfIn PDF document text
    • https://cdn.sqhk.co/kuniremolu/mGKRmha/galaxy_live_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/bobavijiwoba/1WjgWjd/mipepejonejoxaxopu.pdfIn PDF document text
    • http://crysety.xyz/3854658387w1p2c.pdfIn PDF document text
    • https://cdn.sqhk.co/gowamojon/517heQS/drive_on_movie_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/rifarako/Sfziahd/65503835490.pdfIn PDF document text
    • https://cdn.sqhk.co/vasozaponem/OhiPigT/world_war_1_and_2_movies.pdfIn PDF document text
    • https://cdn.sqhk.co/luwesefizi/ijCQ1ib/ludo_star_old_version_for_pc_download.pdfIn PDF document text
    • http://design-kvartira.info/11434913528ao5z5.pdfIn PDF document text
    • https://cdn.sqhk.co/lupekute/bcoKUXR/ruwugekusozivegufaju.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/duzexefemosaxe/fast_typography_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/giroxogupu.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/12430756569.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/49244486397.pdfIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/what_are_some_examples_of_ethical_issues_presented_by_new_technologies.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4F 3644 bytes
SHA-256: 71d3a2ab8aeff42e17b4b52b212e1a4d461a629958800ecc5dbd18137dfc46bc
font_01_sfnt_off0000f854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF854 4928 bytes
SHA-256: cbcded29d8463d9209e8413555cfb161db7139b250f0a6fa4247514ef327e6a2
font_02_sfnt_off00010906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10906 12260 bytes
SHA-256: 9f36de9b1deb2295b89d074644c3b4635bca8c4a5ccf3ffac70fedefc1f39694

Open this report in the interactive analyzer, or submit your own file for analysis.