Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46c00e2cdf23839…

MALICIOUS

PDF

75.3 KB Created: 2021-02-21 05:24:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b15f8216aff47a1cf0b12cb9bb6c3a21 SHA-1: 2513b6320dc5e043605919f2ef3ad3ce6aeb16f0 SHA-256: c46c00e2cdf23839ea5ede41f0f5ecddf16cf0d790312520f2d8223331e031fa
96 Risk Score

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://druttle.ru/123?utm_term=does+stephen+king+appear+in+the+dark+tower+movie PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4406812/normal_5febfa76bc9a5.pdfIn PDF document text
    • http://load-bcp.com/los_tigres_del_norte_torrent25zif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448986/normal_5fc6653cc35f7.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/bvjaheh/83043529045.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476152/normal_602cb04a4e476.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498971/normal_6003d5c67243f.pdfIn PDF document text
    • https://cdn.sqhk.co/dibitarebizu/ynuuIhe/bowowapati.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457318/normal_5fc69d481e8d8.pdfIn PDF document text
    • https://cdn.sqhk.co/fimirexuf/gihchiI/mini_bowling_pins_for_cake.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426812/normal_5ff81d941034a.pdfIn PDF document text
    • https://cdn.sqhk.co/fagaxirupunu/9YQgjgj/26881083155.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/gdAhjLh/hyperspace_xbox_controller.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/dudigonifu/52184870869.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/98201387002.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/35737258538.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/53342416332.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_off0000e8ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FF 5556 bytes
SHA-256: 95de884bd8b6702ff0a01c2746207744c1473a464bc2532ad4e71170f79c3357
font_01_sfnt_off0000fbdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDB 10568 bytes
SHA-256: 1658875881843dfae82552b043a89502210483be228e13a14e667398e68e97b2