Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b2eb5042816479…

MALICIOUS

PDF

79.6 KB Created: 2021-05-24 13:21:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0d8305b5fd6df28c482f6ea872971754 SHA-1: 2307827e36d6788c6e4939cc10fde5585f3f0aba SHA-256: 50b2eb50428164799057da5343b3521722c2ca87c2c241c126faee5e1ed20350
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to 'Pokemon gba roms unblocked', suggesting a phishing or scam lure. The embedded URL points to a suspicious domain, likely serving as a landing page for the malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://mezovuduw.ru/strik?utm_term=pokemon+gba+roms+unblocked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452850/normal_6029c888d3f72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387428/normal_603bf279b90ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428035/normal_603112a9ea92b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421342/normal_606a8a25e15f4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465559/normal_60072b1be41ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423166/normal_6007afd350d0d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479710/normal_5ff5c9295fec4.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/zemunomipazikez/flyer_design_templates_free_online.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/devextreme_datagrid_cell_template.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/how_to_reset_a_roomba_e6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4a820c9-0064-4215-a621-a244c5bb443c/3132745709.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/3014211229.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/felufaxilisekebelav.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/the_girl_with_the_dragon_tattoo_movie_plot_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca06e89d-e607-447a-beb4-0e9cb7f8d8ca/what_is_the_main_purpose_of_the_four_freedoms_speech_brainly.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/4272079561.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/483cad7b-492d-4b68-a351-ab75c5f2b9c5/85132769073.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4aeed00-a58e-4996-9b42-28c25044ab9a/craftsman_garage_door_opener_quit_working.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/primedia_outdoor.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_off0000f921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF921 5464 bytes
SHA-256: fd590e4d3e765c7ac8528e11d4b18787cc2969fca8ecc528e6623dabcd50ddb6
font_01_sfnt_off00010ba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA5 11104 bytes
SHA-256: f00e0967f805fee2a03f3ed26d4f5145be2e921772a95b3231fef042a8333a80

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