Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6f0ed12e2e3bf9a…

MALICIOUS

PDF

85.6 KB Created: 2021-03-18 03:31:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 007b78c8fb4e93f112a9e6f71ffa1e4e SHA-1: 5ec0d2f2c83cc5683b022bc7388a31f1e497035e SHA-256: d6f0ed12e2e3bf9a89519d312961c79c2b46fb40cf55d2dfffcaa378559aaabb
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-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://jottigo.ru/award?keyword=cfo+duties+and+responsibilities+pdf PDF link annotation
    • https://cdn.sqhk.co/fokapalo/c7GhjiH/24341711345.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381978/normal_5fdff29cb381a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369769/normal_601bb8de159ad.pdfIn PDF document text
    • https://cdn.sqhk.co/wusezofetib/fgjibI2/linear_pair_definition_with_diagram.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450338/normal_5fff528a7b8b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415081/normal_60385b625e501.pdfIn PDF document text
    • https://cdn.sqhk.co/mitejapeki/ckjijhi/splash_screen_activity_android_studio.pdfIn PDF document text
    • http://funasowuto.getenjoyment.net/sijamelajer.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/hUfATgc/wordpress_social_login_shortcode.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450347/normal_60299a281833c.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/libro_gramatica_y_ortografia_basica_de_la_lengua_espaola.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/vexosafugunu/suvepulinilidali.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/annual_report_definition_business_dictionary.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/jovepetesuxoxaf.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/warriors_books_series_7.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/time_clauses_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/smadav_antivirus_free_latest_version_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/comparison_between_eastern_and_western_philosophy.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_off00011397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11397 5080 bytes
SHA-256: 163cb10d71f2fe45e26b0e9b4b101fdedfd193210d32a2fc8bda61cc8552ec7c
font_01_sfnt_off000124e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124E2 10724 bytes
SHA-256: d857dace0a168bd537a5058edb0cb592d514f1eb08b2509d51a2ed6a7a561687

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