Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf0cdc9cc9ccc08…

MALICIOUS

PDF

82.4 KB Created: 2021-03-07 15:02:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2104278ab5364ec3eca226d5cdc71570 SHA-1: b5e10f8fcff7bd6df42ee9781d3e3cf34eab5283 SHA-256: edf0cdc9cc9ccc0831111f5a2f793c86c8ae5b7a3d61e4b183bb09b373d126fb
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to 'botokaw.ru', which is flagged as a high-risk indicator. ClamAV detection and ML classification strongly suggest malicious intent, likely related to phishing or malware delivery. The document body, though heavily obfuscated, contains keywords that might be used in a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=cnbc+world+directv
    • https://static.s123-cdn-static.com/uploads/4386618/normal_5ff941fde2547.pdf
    • https://cdn-cms.f-static.net/uploads/4465123/normal_601458d270fea.pdf
    • https://static.s123-cdn-static.com/uploads/4411273/normal_60005ad6dc8cb.pdf
    • https://talowitutujuf.weebly.com/uploads/1/3/3/9/133999148/xukovul-kizapelogola-pepowubul-nusole.pdf
    • https://static.s123-cdn-static.com/uploads/4457281/normal_6005c96e397b8.pdf
    • https://bexaxaxaf.weebly.com/uploads/1/3/2/6/132682125/5de41472357.pdf
    • http://nakalabaxis.mywebcommunity.org/dutojuzo.pdf
    • https://litukepulaj.weebly.com/uploads/1/3/4/8/134863372/4286555.pdf
    • http://xefawojuj.mygamesonline.org/mifowilebifanusenipara.pdf
    • http://govuxojikasumot.scienceontheweb.net/how_to_calculate_preference_dividend.pdf
    • https://cdn-cms.f-static.net/uploads/4486981/normal_604466422c735.pdf
    • https://budasanufewe.weebly.com/uploads/1/3/5/3/135323580/34a491a7b8fdd4.pdf
    • https://mibuvenatevuwo.weebly.com/uploads/1/3/4/6/134607329/pobureboxusuf.pdf
    • https://kuvugelovusilu.weebly.com/uploads/1/3/4/4/134437140/93cf2c1ee.pdf
    • https://zimuvudiredefux.weebly.com/uploads/1/3/2/7/132710782/fevuzaka-wikebotunuvik-nugixezesaval.pdf
    • https://cdn-cms.f-static.net/uploads/4444850/normal_5fd11286e83f3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gogujigasad.onlinewebshop.net/bovigaxolidudapebu.pdf
    • https://s3.amazonaws.com/pevuwarobuvowa/english_chat_practice_online.pdf
    • https://s3.amazonaws.com/jebupofedijakuk/online_ielts_listening_test_free.pdf
    • https://s3.amazonaws.com/kotidox/rovigasakirapepigeved.pdf
    • https://s3.amazonaws.com/likerajatob/all_yoga_asanas_and_their_benefits.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000106a1.bin
205d6dc42682c930c9bb40af2369a35de1f8a025d72d70a7adfeb19d84e22cfb
pdf-font-stream PDF embedded font (sfnt) at offset 0x106A1 4744 bytes
font_01_sfnt_off000116dc.bin
27720308a12b609f063f5d4ee8812be4861f05cde83c5f62c8916f432f2dcf3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x116DC 10960 bytes