Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe0ab9ac127d522…

MALICIOUS

PDF

83.8 KB Created: 2021-05-05 13:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d0da785419c07f8ebf4196ac0af1136c SHA-1: e665b004b03e4334e2dcd6d8a25c9044fe5919f0 SHA-256: afe0ab9ac127d52229899131b975b4369fb2ed43ee2480831501b5d17b7c4b22
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely a spearphishing attachment designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/strik?utm_term=how+to+fix+the+recoil+on+a+snowblower
    • http://vizojuzoninunoz.scienceontheweb.net/13269724197.pdf
    • https://cdn.sqhk.co/nugofonavuf/D72UjeU/vulegedurugigibarilas.pdf
    • https://cdn.sqhk.co/wabogojo/EjjXhbB/christmas_background_templates_photoshop.pdf
    • http://pobadabodoz.scienceontheweb.net/64962071759.pdf
    • https://cdn.sqhk.co/turomixo/fNyDjc1/juventus_transfer_news_ronaldo.pdf
    • https://cdn.sqhk.co/nosuterib/jahkha1/75995826604.pdf
    • http://lupelisizi.medianewsonline.com/sipamojonedutuxekix.pdf
    • http://kizunawinim.getenjoyment.net/the_counselling_and_psychotherapy_research_handbook.pdf
    • https://cdn.sqhk.co/pugepavofu/bhihgOA/angry_anaconda_snake_simulator_games.pdf
    • http://kalukawuwo.mygamesonline.org/60564227165.pdf
    • https://cdn.sqhk.co/noperizapewo/hgGi6ie/fast_racing_3d.pdf
    • http://gejejasofubi.mywebcommunity.org/jedupokevijozo.pdf
    • http://joxitikoki.getenjoyment.net/92213029459.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/0aa06498-a6a0-45d2-a32d-95d5abff8538/95574264537.pdf
    • https://uploads.strikinglycdn.com/files/8ff76b04-6f0a-4287-906b-2d05839762c4/zivopizuwikadin.pdf
    • http://keregimuw.onlinewebshop.net/by_the_shores_of_silver_lake_chapter_11.pdf
    • http://kageditivumimor.onlinewebshop.net/3503198121.pdf
    • https://uploads.strikinglycdn.com/files/f479e49a-c205-4d3b-ae37-5f8b2ba1efa1/xosemuwerelesov.pdf
    • http://pekomuvave.myartsonline.com/teeter_hang_ups_inversion_table_assembly.pdf
    • http://moxosutemow.onlinewebshop.net/elliptically_polarized_light.pdf
    • http://vobikeretuwof.atwebpages.com/gosonujexakovu.pdf
    • http://sukokovevaz.atwebpages.com/vuwolep.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd6e.bin
69c97819c183e09c386ce875911bd447a2fd9e31b4c018198c647540b2d5797b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6E 5020 bytes
font_01_sfnt_off00010e7b.bin
8de1aa01fed3d972922bec58e3eef7b5d6fb03c54db8b65674f13b6ba8a523a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E7B 10920 bytes
font_02_sfnt_off0001338d.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1338D 4324 bytes

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