Malicious PDF — malware analysis report

Static analysis result for SHA-256 dce44390018bbf5a…

MALICIOUS

PDF

72.1 KB Created: 2021-02-16 14:09:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 97af1f39c9d2e212c87ff8023f9a2a29 SHA-1: 33c510ec88e78493d6e550da5d7ff5944ccf48ef SHA-256: dce44390018bbf5abbcbd6628e177070417d25db88a5e45b6a6322190c842973
96 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 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/123?utm_term=acer+aspire+e15+mx150+price+in+pakistan PDF link annotation
    • https://cdn.sqhk.co/videmixolute/xahfhem/8899979303.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/wwihw2U/supercars_for_sale_florida.pdfIn PDF document text
    • http://vepapin.iblogger.org/senumox.pdfIn PDF document text
    • https://cdn.sqhk.co/karopepagu/7hficjh/tukupomi.pdfIn PDF document text
    • http://letekidela.iblogger.org/gesedisosefuwazixa.pdfIn PDF document text
    • https://cdn.sqhk.co/sopiloroda/hx2Mmjf/zgirls_3_characters.pdfIn PDF document text
    • http://leworowotamab.iblogger.org/70866744848.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/sitozi/free_islamic_books_manzil.pdfIn PDF document text
    • http://pelubameta.epizy.com/benizadakuduvefo.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/jewellery_website_templates_free_responsive.pdfIn PDF document text
    • http://lasuwutiganije.rf.gd/wumunubifexuk.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/wuwigixu.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/call_of_duty_androidgamegratisan.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/milezajejunup.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/introduction_project_report_example.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/adecco_salary_guide_malaysia.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/cv_template_latex_mathematics.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/39751781350.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_off0000db94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB94 5484 bytes
SHA-256: f679868dc6ac63467f87fd6303ab4f42fd9734e741ae43b4fd0a4c7967e5e8ba
font_01_sfnt_off0000ee3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE3A 10824 bytes
SHA-256: 807b68bc605954818a7f9db79ce64473277cd2684c0a97d3da3a28342c8977fb