Malicious PDF — malware analysis report

Static analysis result for SHA-256 56d60c4211878246…

MALICIOUS

PDF

58.5 KB Created: 2020-12-23 19:31:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: fc797e4a6f03158e95bef63072a4f6a5 SHA-1: 8e30befd369a018fb498262962870a30e1d7be73 SHA-256: 56d60c42118782461e8f95adc829b4c053b3b36029f27e85e249f896568b82b6
154 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 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 0.9996

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
  • 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://ggtraff.ru/aws?utm_term=letter+l+coloring+sheet+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4460694/normal_5fc37f3e3058a.pdfIn PDF document text
    • https://tapuwapefozex.weebly.com/uploads/1/3/4/3/134350869/negixon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_5f9417857a1d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f9c78ce3e65a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369518/normal_5f94fb1449ed1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453142/normal_5fd7b3f33da5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421061/normal_5fd95b2dcf268.pdfIn PDF document text
    • https://cdn.sqhk.co/zifalulog/9ibhiia/xavejonezexabemunufolik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394077/normal_5fdf6da560fab.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/jifesu/recover_deleted_instagram_messages_facebook.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/constructor_game_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/daily_language_review_answer_key_grade_7.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/bojolaroda.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/pawakewifetapawagogosep.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/material_safety_data_sheet_formalin.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_off0000abac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABAC 4872 bytes
SHA-256: bc51b33b29ab01b1cb663fe3cac4fb5720b3fbf45713522db387b18c8c06f385
font_01_sfnt_off0000bc45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC45 9760 bytes
SHA-256: 85e0146aa0526a7964b9e5a61bf04b47d5764afaa5ab2829171b5e520667925b

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