Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaca029b4d0a9804…

MALICIOUS

PDF

107.2 KB Created: 2021-02-07 12:03:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a53dccd8f5cc12f8a5344fd61a5493d6 SHA-1: a0ed12794a051e9b7e7a68a17ddfbd7cef9bdd97 SHA-256: eaca029b4d0a9804e1e1692b6bb3a1cb69a3a378199e4a55539d16359e8daacb
104 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. It uses an urgency-based lure. 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=world+in+the+balance+worksheet+answer+key PDF link annotation
    • http://blockingscenery.com/2164723330254hgn.pdfIn PDF document text
    • https://cdn.sqhk.co/futidiwe/dCFO5hb/alienware_free_mouse_and_keyboard.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407781/normal_600f1bbd41a63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471455/normal_5ff6ace4495bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366017/normal_5fcdc385e01cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370280/normal_600a243a20a87.pdfIn PDF document text
    • https://cdn.sqhk.co/sixatowitur/hi8Jjgy/noco_boost_plus_jump_starter.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465269/normal_5fe05c2f5fb1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386607/normal_5fe85a6baf539.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371013/normal_600ef436e556b.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/AbjahcX/50832089783.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393485/normal_5ffc2c56c74bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403948/normal_5ff5ede081e34.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487663/normal_60071f18925e4.pdfIn PDF document text
    • http://ijmalan.xyz/58637931735nz77t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484812/normal_5feb33c039e5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466154/normal_5fe17c690aeef.pdfIn PDF document text
    • http://inglassrus.ru/xedefekoxosepozurowinut7wxxt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 5

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_off00016552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16552 5436 bytes
SHA-256: c827bb44286939e8445200c9d8e1484dc12a807e6a80b3d2135cc97d0ef00faf
font_01_sfnt_off000177dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x177DD 11556 bytes
SHA-256: 21d2acaac4dc438298ad7ed9182283dc0ccda7fd9712d348cbccc0b4130f1c8a

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