Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e9b1655c73aef2…

MALICIOUS

PDF

71.3 KB Created: 2021-03-15 22:33:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2cec7ff210eb7b101a3c9911a6255459 SHA-1: 1020e26d3129a34c72ac643113bf445c55910016 SHA-256: e9e9b1655c73aef2bb67ae2078798960217ddaf8587edc9dcc86bf994f037f80
96 Risk Score

Malware Insights

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

The PDF file contains a URL that is flagged as malicious and is presented in a way that suggests a phishing or social engineering attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily garbled, contains text related to diabetic ketoacidosis treatment, likely serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/123?utm_term=acidoc%25C3%25A9tose+diab%25C3%25A9tique+traitement+protocole+pdf
    • http://moxegelubopidi.sportsontheweb.net/10750004428.pdf
    • http://ruwexidokikisi.22web.org/36644851054.pdf
    • http://sutivetowit.mypressonline.com/33482840379.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gozilum/45349826771.pdf
    • http://lojiwifi.epizy.com/72090636916.pdf
    • https://uploads.strikinglycdn.com/files/146f0d0e-2b74-46f9-807a-2f43190477a8/how_to_get_your_company_iso_9001_certified.pdf
    • https://d6236f05-450e-4b96-9875-1783d83c708b.filesusr.com/ugd/912de2_a4df95cfd8164a65a834ecd82cbf4ef3.pdf?index=true
    • https://s3.amazonaws.com/debamijizozexo/vakutudozalevo.pdf
    • http://rujavesejijoram.epizy.com/nonikigigibomuveboramipo.pdf
    • https://6363ce23-9394-4102-a476-7be320345719.filesusr.com/ugd/7c41c1_aaf90a02170d4150bf6714d9db952432.pdf?index=true
    • http://nebejobibaveb.epizy.com/23313797613.pdf
    • http://tozoxuzev.epizy.com/new_hollywood_movies_apk.pdf
    • https://aefb6378-f3ca-470a-b9d2-22936542d087.filesusr.com/ugd/fe129c_7cdab86c10c04a1cb8662746b8ad33db.pdf?index=true
    • https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_ce9411745f85448691f48d46f65632f0.pdf?index=true
    • http://voxotili.epizy.com/lupibavekujogevumewa.pdf
    • https://da99f664-88c7-4a27-98aa-0bbcec2e8f57.filesusr.com/ugd/66f3f9_a472d3780ef24d22b72a0670703d4e8d.pdf?index=true
    • http://wuwedilejom.myartsonline.com/3026483309.pdf
    • https://uploads.strikinglycdn.com/files/4926f2f5-f6e6-43e7-9905-d8ecf55f03ec/68934998508.pdf
    • http://wamovesomawegun.rf.gd/zedusumefowutoniwaparawaf.pdf
    • https://uploads.strikinglycdn.com/files/3b6053f3-94bd-43f4-86e1-57fe0c28148d/96156301964.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_off0000d256.bin
46dda6596b93a7f8052e9f29684f2354e92206665937b552b754aa65d4ae1e46
pdf-font-stream PDF embedded font (sfnt) at offset 0xD256 5700 bytes
font_01_sfnt_off0000e55c.bin
6da7f810f782fc504a51fb02a7018d442f6298833767a5a33c7b2e638d1bbcc4
pdf-font-stream PDF embedded font (sfnt) at offset 0xE55C 12880 bytes