Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad37c389ea73adcb…

MALICIOUS

PDF

153.0 KB Created: 2020-08-28 15:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: ead1f4fc968de1fb2cb87d553e56562f SHA-1: d23af5da4651a3e60789ea7acfef79eccd8b285e SHA-256: ad37c389ea73adcb14bc36bdfc7cdd6817b28b9fe5d3271cba54521a2bba1cf4
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=ubicacion+tempor%25C3%25A1rio+dos+teotihuacan'. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of a malicious URL strongly suggests an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ttraff.com/pify?keyword=ubicacion+tempor%25C3%25A1rio+dos+teotihuacan In PDF document text
    • http://files.adentabenelux.com/uploads/1/3/0/7/130775653/2833310.pdfIn PDF document text
    • http://files.texantoweroa.org/uploads/1/3/2/6/132683017/7a3a8dfce8b.pdfIn PDF document text
    • http://files.glenn-middleton.com/uploads/1/3/1/4/131409526/rafokupamugo.pdfIn PDF document text
    • http://files.debsdetours.com/uploads/1/3/2/3/132303138/bixetunarijuro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0935/7477/files/fifilavidodabidigosetuwij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2394/files/greenburgh_police_accident_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9512/0289/files/77816702547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1455/7596/files/minogibexaramemiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4564/files/65505875959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/big_ideas_math_advanced_1_teacher_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4040/6695/files/vehicle_dynamics_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/62780844137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/bangla_onubad_ebook_free_download.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20064 5648 bytes
SHA-256: 666cbfb40b8cdb8362891500a93b78b929abc15db65adf8f067f1c47feeb5e73
font_01_sfnt_off000212cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x212CC 14700 bytes
SHA-256: 54079353c268ebc93058909cedb4a5cf0169031a72d1391ddafdf60f2cd1fe22
font_02_sfnt_off00023ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23EE6 16060 bytes
SHA-256: ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833

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