Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0bf359f10d097bc…

MALICIOUS

PDF

74.3 KB Created: 2021-03-23 23:56:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0b52800d3214135a5e4a2fb536436686 SHA-1: 1bd09698c73efa7fb8af8aeffb3a2c44600e7f89 SHA-256: d0bf359f10d097bc06f71a6edfd69e101057bef0a0a35fde059d84f68afaa06b
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://seumenha.ru/award?keyword=bleak+house+pdf+free PDF link annotation
    • http://mon-cmbretagne.best/tokyo_ghoul_temporada_2_espaol_latino_megamson0.pdfIn PDF document text
    • https://cdn.sqhk.co/varomapit/hhjgjgj/tosifiraledinaki.pdfIn PDF document text
    • https://cdn.sqhk.co/ronuwimo/g4f04Ax/object_pronouns_worksheet_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/nokulebepoba/4NYyii1/stickers_telegram_a_whatsapp.pdfIn PDF document text
    • http://bumaga.bz/how_to_connect_a_portable_dishwasher_to_faucetrjssp.pdfIn PDF document text
    • https://cdn.sqhk.co/fiseguvugele/dihRWVT/ccleaner_app_for_pc.pdfIn PDF document text
    • http://nextauto02.ru/selective_anatomy_vishram_singh_downloadg2fhi.pdfIn PDF document text
    • https://cdn.sqhk.co/fufigavaki/vUhc7R4/radio_24_italy_online.pdfIn PDF document text
    • https://cdn.sqhk.co/purorenutuw/eMHhe7g/fewixijuz.pdfIn PDF document text
    • https://cdn.sqhk.co/kidatufo/djhjazy/purowopoxof.pdfIn PDF document text
    • http://kutalevewomem.22web.org/xolikifopo.pdfIn PDF document text
    • https://cdn.sqhk.co/zezinojox/3gjidig/ludimimevexozerele.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/459e0b43-6842-4660-a5bf-62191b557a8f/keto_bread_bakers_cookbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/771aeffb-ff7e-4378-93ef-656a45344c8a/42615363559.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba7078ef-aece-46df-a635-f5e98d6a8bc8/1922186350.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33bf33f8-5205-4694-b760-8791042b964d/quantitative_equity_portfolio_management_modern_techniques_and_applications_second_edition.pdfIn PDF document text
    • http://mivuturirem.rf.gd/asfixia_perinatal_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71112f25-b46f-4c08-979c-45e102e3e994/daxawikugamo.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_off0000e472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE472 5240 bytes
SHA-256: d98a3388117cc89ce4249661d0393cfa6705dabc8a58c5257c2cd3811b8fd639
font_01_sfnt_off0000f643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF643 11308 bytes
SHA-256: 9b65ee428bc0e4e59e4316f9d93f1756027cbff3c7f627243ae44e4d52b792a4

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