Malicious PDF — malware analysis report

Static analysis result for SHA-256 2863f4d290841393…

MALICIOUS

PDF

73.2 KB Created: 2021-02-26 11:57:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 13221757088262bbcff19cc45e9745d8 SHA-1: 835c7467dd2fc96947143a9f1b63ef71d5f85164 SHA-256: 2863f4d290841393a1bd30f7820fe1a4488f6d9610e3cfc37ec0c845e3e74c82
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 0.9997

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://zajinet.ru/123?utm_term=how+to+drain+oil+4.3+mercruiser PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454543/normal_60298558274ab.pdfIn PDF document text
    • https://cdn.sqhk.co/vifutetax/hcAhihf/pesalenotitiwurixaso.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/rlR9hcJ/zombie_infection_gameloft_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388285/normal_5ff17c70910ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486368/normal_5ff7d517a9fa6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391925/normal_5fd9cc979ec61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475715/normal_5fccaed533682.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426822/normal_601df3d57b2ac.pdfIn PDF document text
    • http://bizivademix.iblogger.org/kenawumeperitekamopesi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421201/normal_5fe4e9c4dc5c6.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/kovezux/diy_face_sheet_mask.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/free_coloring_sheets_of_fruits_and_vegetables.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/thrilling_games_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/gaming_zone_apk_free.pdfIn PDF document text
    • http://fopagozijudiri.epizy.com/hungry_shark_evolution_all_sharks_unlocked.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/naloxebu.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/incident_report_template_qld.pdfIn PDF document text
    • http://xerofefulut.rf.gd/7204223664.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/jomesomitud.pdfIn PDF document text
    • http://wukajilese.rf.gd/5883079981.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/blank_handwriting_practice_sheets_for_kindergarten.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_off0000e0c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C5 5420 bytes
SHA-256: a96fb763f2a1fe2e067cb2aa9ec0b1b19e118661bf663cfac0a7543e8aee1126
font_01_sfnt_off0000f333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF333 10732 bytes
SHA-256: bf3661766e997f90012751cb6b21c059688ada3b0da14db7899831ffcf3ca622

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