Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d0c8cf2c6f1613…

MALICIOUS

PDF

79.3 KB Created: 2021-05-01 10:12:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 24c751ba3e0957eafb61b83b0746586c SHA-1: 79161f7299ad8f43e472c70d24df79c9de846ede SHA-256: d0d0c8cf2c6f161326622e6daa77d148f26da45b77c9af59a51039aa500a6c74
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'soxebez.ru', which is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains references to 'Jands vista 3 tutorial' and 'wkhtmltopdf', suggesting a lure to disguise the malicious intent.

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://soxebez.ru/strik?utm_term=jands+vista+3+tutorial PDF link annotation
    • https://cdn.sqhk.co/dixufeja/qpFhfgd/marshmello_light_it_up_piano_games_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/xoguvamev/jidh9W3/renaissance_hotel_mobile_al_jobs.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/dajoxejarivimemawu.pdfIn PDF document text
    • http://posiximuteg.sportsontheweb.net/ielts_speaking_script_band_9.pdfIn PDF document text
    • http://kilijosizujowo.medianewsonline.com/aromatic_heterocyclic_chemistry.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/hGgjwgj/7154791696.pdfIn PDF document text
    • http://sifinujox.sportsontheweb.net/antibiotic_resistance_review_article.pdfIn PDF document text
    • http://birapemotafew.mygamesonline.org/31178108501.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/9b0fca9f-fba7-41b8-a74c-28b80fe4ee05/the_knife_of_never_letting_go_full_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c5ed453-0316-4f2d-be26-a91f9f66a53a/sims_3_mod_custom_worlds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98a00f52-8517-4f9c-8635-087b970f3cf6/57060924337.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2dd92b4-28be-440e-9459-26fa9815fa15/35964998383.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31500df6-ebcf-49f8-9dbf-5ff2aa4fdfd0/how_does_organizational_culture_influence_change_process.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31fcd33b-f2bd-4028-ae85-50464b829706/childs_play_tamil_dubbed_movie_hd_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d459cb33-99a8-4f98-b9c0-16d55263b03c/how_do_atoms_bond_to_form_compounds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc8970a3-b0a1-4f21-abda-a49735458cc4/44184064232.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6026a3ce-2453-4283-a5b0-b800170027f0/ryobi_tools_prices.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b08add1d-8ad4-474e-9c17-fc0686f10b2f/what_year_did_the_great_depression_start_and_end.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24b0c40a-2e45-4709-90eb-e01d416019cd/vishnu_sahasra_namavali_hindi.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_off0000f44f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44F 5032 bytes
SHA-256: 179502e3181b3ea5a64dc7dadf2e7e48524a50dbc9353f6d5115eb34c5f00274
font_01_sfnt_off00010580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10580 12976 bytes
SHA-256: 653d9345e75a3b501c4e68a1b792091d2512d4a523e94d2a3186f88966c54cba

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