Malicious PDF — malware analysis report

Static analysis result for SHA-256 456ff443921bccc0…

MALICIOUS

PDF

80.3 KB Created: 2021-05-20 00:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dc2479e25d27fa459c5018b2aba3e557 SHA-1: c54bfd9d9fafce2f5687dce0f9ef7c28e44c6926 SHA-256: 456ff443921bccc06a8d099681f27549267dcb2c03671b38903a779cf9e35d79
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://jottigo.ru/strik?utm_term=synaptics+ps%252F2+port+touchpad+driver+windows+10 PDF link annotation
    • 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://uploads.strikinglycdn.com/files/5b82d155-e836-4635-8c30-7d71be0b813b/tigugo.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/37792250598.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/loud_alarm_clock_free_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/ninidiwo.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/mantis_tiller_carb_rebuild_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aa35b15-3929-4acf-955d-d14d3be2bf42/nowuputipakina.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/9011845110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/484857aa-f770-4a32-a2c2-17c559a2f29e/66991393435.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74ab691d-c4a7-4779-ba79-b1f0756683b8/tazilegovaxadotozuko.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/88369169273.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/what_does_histology_report_mean.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a6a2539-bb72-42f4-a59b-6c52c4d64b1e/tabela_de_consumo_de_energia_de_ar_condicionado_inmetro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/722c8c81-fd20-47ad-9a5e-e64cb8f447bf/blue_is_the_warmest_color_controversy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dba56b3c-ead4-4d8e-ad78-343a0557be57/tim_ferriss_books_most_gifted.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/bollinger_bands_indicator_mt4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81ff226d-0467-4bfb-bc0d-21f101721ad9/7_projects_to_practice_html_and_css_skills_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/81440996650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5b06a33-007d-421c-9ec3-2a8d0d603ddb/rasterlink_6_printing_white.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b76524c-db7d-4f0a-9614-791ae5378e90/calculus_with_concepts_in_calculus_6th_edition.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_off0000ed08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED08 5728 bytes
SHA-256: eee49dab7cc6183912c7ef81d46812fa0b3a7cc47ea93c0c7edcdcb4641d75e5
font_01_sfnt_off000100a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100A0 10688 bytes
SHA-256: 6c1ac247575732de7753a0551a4fb4bdd91a7ff40d1214473d1ac15873b582c5
font_02_sfnt_off0001255e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1255E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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