Malicious PDF — malware analysis report

Static analysis result for SHA-256 00355e49557ea75b…

MALICIOUS

PDF

76.9 KB Created: 2021-03-15 02:20:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: f5c6f2cbb5a73f015e0234864982ed78 SHA-1: 3d670354c6efe7cd3c9c1d7f9a32e24ca434d470 SHA-256: 00355e49557ea75be3e3320a3fcfc83c361d2de3eb3c683e67bed2c6bf64ca48
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs pointing to external resources, suggesting it's designed to redirect users to malicious sites or download further payloads. The presence of PDF_URI and EMBEDDED_URL heuristics further supports this, indicating the document's primary function is to facilitate external access, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/strik?utm_term=swanson+speed+square+blue+book+pdf+download PDF link annotation
    • http://nesakud.mypressonline.com/zugebisuzodapa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388048/normal_5ff04959530dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393628/normal_5fcfa4f7613f4.pdfIn PDF document text
    • http://menetufebev.22web.org/daxotuvirofazakuwupupilif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368731/normal_5fefa161b38c7.pdfIn PDF document text
    • http://kavelizopepi.mywebcommunity.org/the_beautiful_game_podcast_hosts.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/pajovorafopomij.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426063/normal_60028db5d998e.pdfIn PDF document text
    • http://bowoporoj.iblogger.org/bugokolawexakigater.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379380/normal_604473577e439.pdfIn PDF document text
    • http://gapijet.scienceontheweb.net/al_quran_free_download_for_mobile.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/brillouin_scattering.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488332/normal_60272865ad923.pdfIn PDF document text
    • http://sakulog.sportsontheweb.net/94494080905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369324/normal_6042b6d61f850.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382189/normal_5ffcf0581422b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460678/normal_5fe8176c483ff.pdfIn PDF document text
    • http://zexawabezazojot.sportsontheweb.net/24751063316.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/boxalewijim/13827804776.pdfIn PDF document text
    • http://javisan.epizy.com/devasulixeme.pdfIn PDF document text
    • http://kemesuxaw.myartsonline.com/catalogo_avon_13_2020.pdfIn PDF document text
    • http://tezebidurob.epizy.com/avast_free_antivirus_setup_offline.pdfIn PDF document text
    • http://wilaroxu.atwebpages.com/apostila_concurso_administrao_pblica.pdfIn PDF document text
    • http://moxapowi.myartsonline.com/install_setuptools_offline_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/when_i_met_you_quotes_for_her.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_off0000eb6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6B 5560 bytes
SHA-256: 60c7d93a770b6f78572f7814212ef2d1546ce433948f68f207dee6a442bb0587
font_01_sfnt_off0000fe6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE6C 11348 bytes
SHA-256: 105386106ba86e076349d6f58670df3ed21cd46eed7420a5982cd6e369bfeb60

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