Malicious PDF — malware analysis report

Static analysis result for SHA-256 298bc81289686755…

MALICIOUS

PDF

94.6 KB Created: 2021-02-17 18:41:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8e997d693c55125ef65d09a166130c2b SHA-1: 79144837c5f3d152128ca0f4f4f51d40dea5e894 SHA-256: 298bc812896867557e68923270951903975c8baf505b5903046484efac308bc9
154 Risk Score

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 routes users through malicious redirector infrastructure. 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=brandon+ingram+college In PDF document text
    • http://pomevufe.22web.org/38677205283.pdfIn PDF document text
    • https://cdn.sqhk.co/fegadosijete/hfijaid/putuzixitiwupuxoxu.pdfIn PDF document text
    • http://vsedlyatebya.xyz/72934831493krpte.pdfIn PDF document text
    • https://cdn.sqhk.co/tonuviwa/ewohdjd/tip_top_barbers_colleyville.pdfIn PDF document text
    • https://cdn.sqhk.co/fapolokid/rIgic1N/tegusobutesejat.pdfIn PDF document text
    • http://sayfelengs.space/ielts_reading_test_2_answers_bringing_cinnamon_to_europeds0k2.pdfIn PDF document text
    • https://cdn.sqhk.co/vefemenivu/hbFjhjd/18631933990.pdfIn PDF document text
    • http://itfamily.info/t._harv_ekerve69h.pdfIn PDF document text
    • http://regivag.iblogger.org/25231393068.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/nimuwet/a_canadian_writers_reference_diana_hacker.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/72585986031.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/brobar_boli_full_video_song.pdfIn PDF document text
    • http://xuwanozofugis.epizy.com/aviva_asia_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/free_powerpoint_templates_for_business_review.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/examples_of_access_database_forms.pdfIn PDF document text
    • http://toramowajo.epizy.com/hssc_admit_card_link_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/dream_on_me_playard_sheets.pdfIn PDF document text
    • http://wamigogobug.epizy.com/petty_cash_template.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000134d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134D8 5128 bytes
SHA-256: 824e9ec62aa349c569456e6c226caaaa7c5b2cb4e5b2ada56d94ba31904d2a67
font_01_sfnt_off00014632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14632 11364 bytes
SHA-256: 7d2d49c638ddcc7c6fb55a489cf0bedb63b2ba3dcc8bd077e5923d637e04f5f3

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