Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bf2d17e5345c89c…

MALICIOUS

PDF

91.1 KB Created: 2021-03-11 12:56:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fda2aa00dbf1372cb739846b1f545008 SHA-1: 774a771df9a2cb86cd63242463cc22a8f51c1e84 SHA-256: 2bf2d17e5345c89c67dfcdebf9667e19452e04ba5e8c9efaad7adfd4ff5aa4cb
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 malicious domain, likely intended to deliver a payload or phish for credentials. ClamAV and ML classifiers strongly indicate maliciousness, and the document body, though heavily obfuscated, suggests a lure related to 'electric motor parts'. The presence of embedded URLs points towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://vilenefex.ru/wix?keyword=partes+de+un+motor+el%25C3%25A9ctrico+casero
    • http://xugaguf.mypressonline.com/tajowum.pdf
    • http://tafakiduwav.scienceontheweb.net/migivasamomas.pdf
    • http://pekibexuvipeve.scienceontheweb.net/30329015413.pdf
    • https://mufewikusa.weebly.com/uploads/1/3/4/0/134042586/jugufujewegopapi.pdf
    • http://mijudivoxobo.iblogger.org/97965440062.pdf
    • http://gifinibufenatar.medianewsonline.com/lefuxixafuw.pdf
    • https://lurotafimeka.weebly.com/uploads/1/3/0/7/130740015/2113713.pdf
    • https://waretopaze.weebly.com/uploads/1/3/4/5/134529701/375d0a0.pdf
    • http://kebuluwe.iblogger.org/what_score_do_you_need_to_pass_the_fe_civil_exam.pdf
    • https://kabibejago.weebly.com/uploads/1/3/6/0/136050231/pumuwowa_gimanu.pdf
    • http://wowovamofuzo.sportsontheweb.net/digital_data_acquisition_system.pdf
    • http://tiledevaw.22web.org/beowulf_tolkien_ita.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/be8d67d9-4e96-4c0c-8f81-b1cde0c6b0b5/49236825097.pdf
    • http://puwigedonokapav.epizy.com/lexilejelega.pdf
    • https://s3.amazonaws.com/sowewazulejewi/wassce_2019_geography_questions_and_answers.pdf
    • https://uploads.strikinglycdn.com/files/d636fa50-02f4-417e-998a-437e2c6b57dd/jitterbug_flip_phone_best_buy.pdf
    • https://uploads.strikinglycdn.com/files/33af4b3a-42bf-4f53-bdc6-202182183bfd/16188180633.pdf
    • https://uploads.strikinglycdn.com/files/c45cfb54-c1fa-40d6-b0b1-2efca9914fc3/oracle_certification_for_sql_and_pl_sql_developer.pdf
    • http://xevorerokune.epizy.com/tesco_corporate_social_responsibility_report_2018.pdf
    • https://uploads.strikinglycdn.com/files/2718ee51-1a39-4bf0-b6c2-d11a37c41c3e/vietnamese_traditional_folk_dance.pdf
    • http://koradanizepagow.myartsonline.com/why_are_primary_and_secondary_standard_solutions_needed_in_analysis.pdf
    • https://s3.amazonaws.com/jotizifime/gulupunenedewir.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_off000116c2.bin
f6543e31cf64119be4de236c21a2097d1b9507531d62efd87cb59e495601c6e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116C2 5108 bytes
font_01_sfnt_off000127b4.bin
bc6277c882dcb380d10a9f3bd10eb9c33fa91d8576791f7bd599409ef54ccfd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x127B4 12244 bytes
font_02_sfnt_off00014ed2.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14ED2 4324 bytes

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