Malicious PDF — malware analysis report

Static analysis result for SHA-256 883f148a554061c5…

MALICIOUS

PDF

95.0 KB Created: 2021-01-30 21:40:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 6a37ed3340cb2fc5402d56f8071a8480 SHA-1: f545f4343816d6cb94d5dea6395bd6bf9b5b3ed8 SHA-256: 883f148a554061c54fc15c01a895833c62abe14222823561aadf167fbd6f4b0d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a site offering a 'Sims 4 supernatural mod 2020', which is a common lure for phishing or malware distribution. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of malicious intent. The presence of external URIs and embedded URLs suggests the document is designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/123?utm_term=sims+4+supernatural+mod+2020 PDF link annotation
    • http://larts.digital/10311950376dm4xg.pdfIn PDF document text
    • https://cdn.sqhk.co/rumomezojeku/vjbhfii/stearns_ice_cream_puddle_jumper.pdfIn PDF document text
    • http://storefromit.pro/nowy_wspaniay_wiat_30_lat_pniejmsyo3.pdfIn PDF document text
    • http://mijudivoxobo.iblogger.org/dusoxuxofa.pdfIn PDF document text
    • http://reweder.site/tricky_taps_level_978ajuv.pdfIn PDF document text
    • http://reactivascotia2020.com/sokovavilkp5i.pdfIn PDF document text
    • http://natlab.ru/teperovutokilinureleznjppq.pdfIn PDF document text
    • https://cdn.sqhk.co/diwiporeb/ih5T0N5/ribisabuta.pdfIn PDF document text
    • https://cdn.sqhk.co/xusorawoka/jgehbRm/scribble_rider_game_download_for_pc.pdfIn PDF document text
    • http://boxberry-24.cc/traincontroller_9_gold_serialcdlz2.pdfIn PDF document text
    • http://design-kvartira.info/nalorefetidurv88l.pdfIn PDF document text
    • https://cdn.sqhk.co/babakobesuxe/CIgfg0N/manifitakaxadepowegape.pdfIn PDF document text
    • https://cdn.sqhk.co/pitekofotada/idiegjh/new_pinball_project.pdfIn PDF document text
    • http://matrixbicycles.com/flange_sheet_metal_inventorxsriz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gimufesajo/83407403052.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/column_addition_and_subtraction_worksheets_year_6.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/html_horizontal_drop_down_menu_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/81356548907.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/acca_ethics_module_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/guidelines_for_diagnosing_type_2_diabetes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12746 5452 bytes
SHA-256: 3f16d2201b7fac1c509c57afdf2b860a7102c25736c97bb6fd6a3593c6f71fc2
font_01_sfnt_off000139a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139A5 11736 bytes
SHA-256: 8d1a3d2217c263a4ac54ee0d1d1364d08c4a982f51f11bfeaf6ec7103ae4576a
font_02_sfnt_off00016057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16057 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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