Malicious PDF — malware analysis report

Static analysis result for SHA-256 32170706dbf0684a…

MALICIOUS

PDF

77.2 KB Created: 2021-03-13 22:59:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 9271f036758134a3ec4d7a76ff647b92 SHA-1: 02ced1d3cae0cfe933e038a7ac1c0c638cf29e91 SHA-256: 32170706dbf0684a0d6a31dc1473228037ab81ec70b17a34df2b395b1d6a9783
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely used for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into navigating to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/wix?keyword=shoedazzle+tracking+order PDF link annotation
    • http://gepexoliv.medianewsonline.com/discrete_mathematical_structures_4th_edition.pdfIn PDF document text
    • http://dontbeshy.xyz/bexatelustexbl.pdfIn PDF document text
    • http://redirerer.medianewsonline.com/buneralabugumewur.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/wicca_a_guide_for_the_solitary_practitioner.pdfIn PDF document text
    • http://smallita.space/63245993748yba9s.pdfIn PDF document text
    • http://healthytrands.com/education_assistant_job_interview_questions_and_answersysqmq.pdfIn PDF document text
    • http://cz-nitrof.website/nonlinear_dynamics_and_chaos_strogatz_2nd_editionj7et4.pdfIn PDF document text
    • http://forsage.pw/who_hypertension_guidelines_2017e42pz.pdfIn PDF document text
    • http://coolmag.biz/pidulazazelixilekanubuw58n.pdfIn PDF document text
    • http://4338bacchus.com/dom_juan_moliere_synopsisai3rb.pdfIn PDF document text
    • http://hookup157.site/25282342153tma42.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dapibudajemuk.atwebpages.com/how_many_questions_are_on_a_cdl_air_brake_test.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/advanced_java_gui_programming.pdfIn PDF document text
    • http://zixoxajoredipub.epizy.com/15869591286.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/loliwagasinomukamudaguzel.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/zanilezejajejosasem.pdfIn PDF document text
    • http://wegorabeg.atwebpages.com/reading_comprehension.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/pedarosovunenosur.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/agriculture_census_2015-_16_in_telugu.pdfIn PDF document text
    • http://xevorerokune.epizy.com/tobezofoxevarafaliti.pdfIn PDF document text
    • http://watimesuw.rf.gd/zoxisuginijoxejotixipe.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/how_to_add_guided_access_to_ipad.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_off0000f00d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00D 5240 bytes
SHA-256: b819e4c585c842f81bbd0fc595d9528caf89cd75ba755703c42a550b1c57b344
font_01_sfnt_off000101df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101DF 10584 bytes
SHA-256: c0d7df22e6e0025c5c3e574c135fe0c36b463441383043cc077d7aa18a6b0c76

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