Malicious PDF — malware analysis report

Static analysis result for SHA-256 f094c6d92889ba35…

MALICIOUS

PDF

80.9 KB Created: 2021-03-21 20:43:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e0ce1ac779210473cea607a3fab8f44e SHA-1: 5e52970e2ca49effa273c271c5fecff300f453a5 SHA-256: f094c6d92889ba356ca5a25794ee542beeb6ab5bf5da199af707ebab0f2488e3
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a URL that mimics a search result for a legitimate PDF, suggesting a phishing or malware distribution lure. The PDF structure and embedded content are consistent with attempts to disguise malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/award?keyword=essential+words+for+the+toefl+5th+edition+pdf+free+download
    • https://cdn-cms.f-static.net/uploads/4366365/normal_60178b8fd21b4.pdf
    • http://vezapom.iblogger.org/aluminized_steel_sheet_gauge_chart.pdf
    • https://cdn-cms.f-static.net/uploads/4378425/normal_6010a18273c55.pdf
    • https://static.s123-cdn-static.com/uploads/4384320/normal_5ffeac2a14e46.pdf
    • http://xumupizaxuto.scienceontheweb.net/bukivokasijadujugu.pdf
    • http://rojibitakuvekuw.scienceontheweb.net/animus_and_anima.pdf
    • https://cdn-cms.f-static.net/uploads/4481841/normal_600a8b4588b97.pdf
    • http://tuduvodakep.mypressonline.com/50253511564.pdf
    • http://tafiwon.mywebcommunity.org/89566462697.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://98748e4b-3258-471a-903e-8ea98415cca0.filesusr.com/ugd/fd7405_db45e8f644f64aa492b50c3c6c754093.pdf?index=true
    • https://45b0b119-5f8c-43e7-b437-4e12d17c1c81.filesusr.com/ugd/3826db_87288b4aacd543789b0e0d05f61372d7.pdf?index=true
    • http://dofumuligo.rf.gd/ti_86_vs_ti_84_plus.pdf
    • http://tutufot.rf.gd/dream_on_aerosmith_guitar_tab.pdf
    • https://b6e49935-6d58-4bde-831f-6e0b746776d3.filesusr.com/ugd/7d321f_4c3ac43eed90434492a47b0a0f88c05b.pdf?index=true
    • http://susegemosesipul.epizy.com/chemistry_formulas_periodic_table.pdf
    • http://tenitiwakaw.epizy.com/air_force_mts_question_paper.pdf
    • https://s3.amazonaws.com/xuvamuba/15925903420.pdf
    • https://uploads.strikinglycdn.com/files/19a8a038-9058-4c3b-a0ba-c5eb3884df86/como_desarrollar_la_inteligencia_emocional_en_los_nios_albert_alegre.pdf
    • https://625f08e2-3d8e-45b5-8e8c-b95d001c5c7c.filesusr.com/ugd/d94ae5_996194d528f34c43bc4d2604ace4f015.pdf?index=true
    • https://uploads.strikinglycdn.com/files/37bf7339-256c-4641-8d00-53a15594c2e9/4r70w_valve_body.pdf
    • http://wesatume.atwebpages.com/bearing_types.pdf
    • https://7ae52be2-ba3c-41fb-8935-29281088223e.filesusr.com/ugd/affaa6_22177b8223be44378f791c1edb031560.pdf?index=true
    • https://s3.amazonaws.com/bitizopovopaso/rozoviminoz.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_off0000ec2c.bin
1e452923f2d3f4bebaa804a73f04e80c253b9385ed6349ea7c640d7715ac286c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC2C 5092 bytes
font_01_sfnt_off0000fd84.bin
09b76bdc539c606998ad0d5f40d210e7eb7b3ac5b1142944a3bcefe010ac3cfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD84 12572 bytes
font_02_sfnt_off000125af.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x125AF 4324 bytes

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