Malicious PDF — malware analysis report

Static analysis result for SHA-256 8065c2ebc84142fc…

MALICIOUS

PDF

77.5 KB Created: 2021-03-18 19:53:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9970dedc57bfe8151b8602eaee599596 SHA-1: ba032547405bc868fca93b76cc6c216b74a38f92 SHA-256: 8065c2ebc84142fc3d64a22a1f20a63fa4b856e089de00454fbb4a20b59df767
104 Risk Score

Malware Insights

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

The file was detected as a phishing trojan by ClamAV and flagged by an ML classifier. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload. The presence of a visual download button lure further supports a phishing or social engineering attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=pokemon+platinum+apk+gba
    • https://cdn.sqhk.co/jeforije/XZxpfhh/twitter_downloader_gif.pdf
    • http://leseweremizew.scienceontheweb.net/23840956561.pdf
    • https://cdn-cms.f-static.net/uploads/4371025/normal_604ad1b6a6774.pdf
    • https://cdn-cms.f-static.net/uploads/4460981/normal_601298dfd7098.pdf
    • https://static.s123-cdn-static.com/uploads/4453344/normal_5fe472ecd2910.pdf
    • http://rasudilikid.mywebcommunity.org/wexevim.pdf
    • https://cdn-cms.f-static.net/uploads/4495385/normal_604759a3b7a41.pdf
    • http://mavigawika.scienceontheweb.net/bidalokofupuzudizelul.pdf
    • http://ligumexijigab.getenjoyment.net/my_side_of_the_mountain_free_online_movie.pdf
    • https://cdn.sqhk.co/zuzipogowita/Fjehaje/civil_war_generals_from_south_carolina.pdf
    • https://cdn-cms.f-static.net/uploads/4415936/normal_601bccf801ebd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rebokomixuxoj.epizy.com/organizational_structure_template_powerpoint.pdf
    • http://vegusofeta.rf.gd/el_uno_es_un_palito_en_forma_de_baston.pdf
    • https://uploads.strikinglycdn.com/files/438f375e-0e01-40cc-93b1-baea66e04690/the_taming_of_the_shrew_movie_2005_online_free.pdf
    • https://uploads.strikinglycdn.com/files/6313c7a1-c169-4f00-9cc0-0f0b5678b165/nafapamefebe.pdf
    • https://uploads.strikinglycdn.com/files/abb1e7f9-db54-43dd-b6d1-6216c2c4ad12/vetosajigaw.pdf
    • https://uploads.strikinglycdn.com/files/6c8d7ec6-daa2-4884-92f8-50b69f151088/international_young_lawyers_association.pdf
    • https://uploads.strikinglycdn.com/files/37ff5d81-825e-4b27-83a1-0c8fcb27b420/the_hobbit_1_full_movie_in_hindi_download_mp4.pdf
    • https://uploads.strikinglycdn.com/files/13269bbf-da15-48f6-b839-51464dde7f0d/how_to_use_variance_inflation_factor.pdf
    • http://jumepenitujox.atwebpages.com/metal_turning_on_the_lathe.pdf
    • https://uploads.strikinglycdn.com/files/8104b58e-69dc-44ae-9260-e75021d248b6/how_to_program_my_rca_rcr414bhz_universal_remote.pdf
    • https://uploads.strikinglycdn.com/files/10bf471e-70ad-4e7c-b51b-df7337b68ee0/kuxozanigize.pdf
    • https://uploads.strikinglycdn.com/files/bc5c1b8d-71ca-46c0-868a-e4b0bfae346f/stampante_samsung_xpress_c480fw_manuale.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efe5.bin
c590fe1790f5d4c48801839491d9f19b892b7d6404ea4fba335d0fb3fd812d38		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE5 5068 bytes
font_01_sfnt_off0001011c.bin
4dbf895e7cb6c63fa5ad0b3c594bfab21e948bd6647f749471e816c64aa54890		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1011C 11264 bytes

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