Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1903a703426969b…

MALICIOUS

PDF

81.6 KB Created: 2021-03-05 12:10:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 75bc563b2e8a03f1c0dd5a5e77e087ca SHA-1: 916ae8b0399a99dadc0a7640b3c61becd88273fd SHA-256: a1903a703426969b88ee0d70b8183b28647df926e08bc87abc3d2cb926c8fb9b
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 suspicious domain, 'soxebez.ru', which is likely used for phishing or to host malicious content. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to 'Going postal movie netflix', suggesting a lure to attract user clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/123?utm_term=going+postal+movie+netflix PDF link annotation
    • http://dlkmvkoenv.info/bumesamokewegutijovh4ox1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471096/normal_604139b143b27.pdfIn PDF document text
    • http://lnstagramlivesupportcenter.com/vuzumedibujo4iuay.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403140/normal_601eb8a5a7531.pdfIn PDF document text
    • http://dudipoviju.22web.org/51089470829.pdfIn PDF document text
    • http://rodsfish.club/journal_of_applied_spectroscopyh73o3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491398/normal_5fe5296c6b928.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bokofapig/dijilibigifaritijekejapij.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/vuwinuribive.pdfIn PDF document text
    • http://ravuxigud.epizy.com/yeast_fermentation_lab_report_example.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/macbeth_act_2_scene_1_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98d971e5-aab1-4da4-adb9-2e0e03e4eefc/mobepekekurunalu.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/lump_sum_contract_template.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/jodijidujuma.pdfIn PDF document text
    • http://bijokosi.rf.gd/tajezun.pdfIn PDF document text
    • http://jenulozamaberur.epizy.com/tuwowu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39f03bf5-fd6e-4112-88b6-8e484bd927a1/2020_kenworth_t680_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/alffy_rev_senja_dan_pagi_video.pdfIn PDF document text
    • http://movuveso.rf.gd/11148531909.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/754ccf50-da72-45be-83cb-7331808fd872/21575841131.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/cars_2_full_movie_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/gosesuvajugivugow.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/generador_de_citas_apa.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_off00010099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10099 5284 bytes
SHA-256: 4b7d2573d71fad2cc788eb55537cf41c47140926f5e628cf3a6e0211e2d6231f
font_01_sfnt_off0001129c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1129C 11768 bytes
SHA-256: d406df5212de3c164940bd20e04503aac212f0aa1ee0cb5fa652404ad00b381b

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