Malicious PDF — malware analysis report

Static analysis result for SHA-256 584888a92cbe7e93…

MALICIOUS

PDF

79.4 KB Created: 2021-05-28 19:20:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 39c39b2e9680681682929ca0a13f8bb8 SHA-1: 5139044f48f1d933f4b2bb3ac0ba73a6d4123b29 SHA-256: 584888a92cbe7e934988c5c4139db2170fa32e3ceadcddc7f9f09683410c633c
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-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://botokaw.ru/123?utm_term=ccli+reporting+propresenter PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4501495/normal_600052f6bc788.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458635/normal_60667d497ae76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451027/normal_60153211a23c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403806/normal_5ff6c42de7fa5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372723/normal_606b747ed4286.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405181/normal_604cb4dc4f8ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489722/normal_5fc739468384c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460447/normal_5fcaf7238618d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387815/normal_5fd8a12cea8b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428043/normal_5fcf6cdf7e398.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387567/normal_5ff5ed380b9a6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d178c1a6-bb8a-4a38-9661-2c3298ea33f2/2051877566.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02adc425-50cc-461a-85d0-cb821435ee91/samsung_rfg297hdrs_reset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd53e6f1-f13e-4653-a2da-33e2a0ae221d/bissell_cleanview_swivel_rewind_pet_brush_belt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b798a18-142d-40ef-8096-7255f39b638d/can_first_response_really_detect_early_pregnancy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcdc7aa1-aef7-4442-9b71-da2474761aaa/how_to_replace_battery_on_kindle_d00901.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a0024b6-3101-4479-b8b1-85ae1f7faba0/61162514000.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7de0ce04-c704-46c7-94df-9d46a46baa74/best_buy_canada_hours_today.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 7

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_off0000f929.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF929 4796 bytes
SHA-256: da5b719fa3ccb1c0d8c27967b822237f09d512db2b7f5375183bfb97cb6e4c64
font_01_sfnt_off0001098a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1098A 11496 bytes
SHA-256: b88c93e14f15bb76adc8852794c403f3e3d83fb5fdc30da3ef3f22122007a1db

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