Malicious PDF — malware analysis report

Static analysis result for SHA-256 c63aca4d2a38870b…

MALICIOUS

PDF

82.8 KB Created: 2021-03-28 00:24:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73270c3d72c0e417d2efab896a0e79f2 SHA-1: ed16cf029ccaf0253bb2a4c3ee64da4a18bb4342 SHA-256: c63aca4d2a38870b160d5d6c74612027e282ce59f9e2897a54eb412f9cc475a8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a URL that is presented as a download for 'fifa mobile apk 2019'. This URL, along with several other unknown reputation URLs, suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.

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://midufefew.ru/wix?keyword=download+fifa+mobile+apk+2019
    • http://fomigiv.mypressonline.com/geometric_progression_problems.pdf
    • https://vojufutevale.weebly.com/uploads/1/3/4/5/134521456/4801541.pdf
    • https://mazefitarunakur.weebly.com/uploads/1/3/1/4/131453858/5281448.pdf
    • http://towonededuv.medianewsonline.com/descriptive_language_that_appeals_to_the_sense_of_smell.pdf
    • http://xanusojuruxu.sportsontheweb.net/13693803165.pdf
    • https://ralevenewuw.weebly.com/uploads/1/3/4/4/134464099/4999436.pdf
    • http://dogalijun.scienceontheweb.net/apollonius_of_rhodes.pdf
    • http://zomidojofutaxa.22web.org/89666215451.pdf
    • http://jujukakajita.iblogger.org/nenovixuzigawisasefawog.pdf
    • http://nexekeb.iblogger.org/between_and_among_worksheet.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/xirixepo/what_was_the_decision_brown_vs_board_of_education.pdf
    • https://uploads.strikinglycdn.com/files/233e1f84-f2fb-4a94-a478-c015607bc15e/wordpress_tutorial_bangla.pdf
    • http://lodanije.epizy.com/hmrc_business_income_manual_use_of_home.pdf
    • http://gosufixo.rf.gd/comparative_and_superlative_adjectives_exercises_worksheets.pdf
    • https://s3.amazonaws.com/gurafoga/after_effects_wiggle_transform.pdf
    • https://s3.amazonaws.com/fukepez/tudijejitepifokoboliru.pdf
    • http://renimip.rf.gd/trials_of_apollo_tower_of_nero_vk.pdf
    • https://uploads.strikinglycdn.com/files/d2387dd8-04f7-41bc-955e-1a063cb3a631/how_do_you_figure_out_body_surface_area.pdf
    • http://sujawokasafu.onlinewebshop.net/ccna_security_exam_cost.pdf
    • http://vefewubine.epizy.com/water_cycle_worksheet_1st_grade.pdf
    • https://uploads.strikinglycdn.com/files/b84445ba-e7a1-4fd8-8111-c1ffcaf1473d/maxonidixugeseduvebilokup.pdf
    • http://vajowulidaxunit.epizy.com/introduction_to_criminal_psychology.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_off0000f8c6.bin
99e17ac699084fd06535b531d0fc45befbcb2392731672c18937e29cea83d849		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C6 5400 bytes
font_01_sfnt_off00010b21.bin
a0c626529699d9fe085ef80b5e7ec8e4c7101ae075e4f9127f2ffbb44d7e5577		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B21 10360 bytes
font_02_sfnt_off00012e56.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E56 4324 bytes

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