Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2b222cad7e66a9…

MALICIOUS

PDF

309.7 KB Created: 2021-02-27 01:49:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: ad48c6e6418c31fbbfb8412bb1b216d0 SHA-1: 464a302c54c3c25bf1511616a077ffae7f3725e0 SHA-256: 6c2b222cad7e66a99741bde153aefe02a3bed0d1c891276315f80deffc7b5bfa
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, suggesting it's designed to redirect users to a potentially harmful website. The document body, though heavily obfuscated, contains text related to a book summary, likely serving as a lure. The presence of PDF_URI and EMBEDDED_URL heuristics indicates the document's intent to interact with external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9939

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://resalured.ru/aws?utm_term=born+a+crime+chapter+9+and+10+summary PDF link annotation
    • https://manesufepal.weebly.com/uploads/1/3/1/3/131381078/4834430.pdfIn PDF document text
    • https://lugifepitel.weebly.com/uploads/1/3/2/7/132710690/meluputo.pdfIn PDF document text
    • http://cleaner-inn.club/html_to_javascript_open_sourcex17u7.pdfIn PDF document text
    • http://llloooodddd.space/crunchyroll_premium_freefh1u1.pdfIn PDF document text
    • https://rinulokol.weebly.com/uploads/1/3/4/8/134868038/c8ac8200534087.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379611/normal_5ff4889c4de7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5fd32a002c7b5.pdfIn PDF document text
    • http://copyrightnotice-ig.com/chemistry_for_dummies_barnes_and_noblepet49.pdfIn PDF document text
    • https://xedutorapul.weebly.com/uploads/1/3/0/8/130813372/ranijo_bilidolowero_gawenakuberixex.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382196/normal_5fe2148105889.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494146/normal_5fe24ab6bb1be.pdfIn PDF document text
    • https://fewefemuge.weebly.com/uploads/1/3/4/3/134372507/10d08.pdfIn PDF document text
    • https://dasewukux.weebly.com/uploads/1/3/5/9/135956745/6453469.pdfIn PDF document text
    • https://rugisuvo.weebly.com/uploads/1/3/4/4/134438002/103908.pdfIn PDF document text
    • https://favotofuti.weebly.com/uploads/1/3/1/8/131871633/jimineno-rogazofidine.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414868/normal_5fdb61f549d0f.pdfIn PDF document text
    • https://kesegupopu.weebly.com/uploads/1/3/4/1/134131766/1615891.pdfIn PDF document text
    • http://mstmail.space/10327353822ohl95.pdfIn PDF document text
    • http://all-host.site/jetabafofeta2ygdm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fosadexovoz.epizy.com/52580258274.pdfIn PDF document text
    • http://fovodikil.rf.gd/demopuwenida.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_off00048c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48C92 5784 bytes
SHA-256: 3f94c48710a0a364abb97b8faab7ed0f906ab0008c7de073c98c141de43c24ca
font_01_sfnt_off0004a024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A024 11696 bytes
SHA-256: ed770658e3453c08db1198a3cc55d5586401b0c0a73b45b317a6f9d8dad1bbca

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