Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdbe1b5115d6c45c…

MALICIOUS

PDF

528.9 KB Created: 2020-08-08 13:15:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: eb69440bafd7f7219f2153338d5b8c72 SHA-1: 2d07125389ba45b14ec65181725a957df0c17dfb SHA-256: bdbe1b5115d6c45c0e5ab73f2329248b9dd31a5b707001ce9d50629bc3b60eca
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9712

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=canaleta+ranurada+weidmuller+pdf In PDF document text
    • http://files.stmaryseynesbury.com/uploads/1/3/1/4/131453267/puvefipejonezupure.pdfIn PDF document text
    • http://files.pklblwinners.com/uploads/1/3/0/7/130775431/829e0be5b.pdfIn PDF document text
    • http://files.mission2hope.org/uploads/1/3/1/4/131483361/4560570.pdfIn PDF document text
    • http://files.breadbaskethemet.com/uploads/1/3/1/4/131452838/1355333.pdfIn PDF document text
    • http://files.millhillarts.com/uploads/1/3/1/4/131453598/8408081.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/1/0432/4111/1707/files/54289511364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3503/1712/files/lilisozatudini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/9565573634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0659/8040/files/30524583984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2165/5464/files/kinesiologia_applicata_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5886/9910/files/astrotheology_and_shamanism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9113/2567/files/18832820082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6628/6490/files/balinoladikojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2324/4191/files/nutricion_enteral_y_parenteral_arenas_anaya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/cg_police_caf_merit_list_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/93516934053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/62664913835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/18047464759.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_off0007cb21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB21 5004 bytes
SHA-256: ec652cabcd8fbf39d87214465b6b0ada23e1d52de99f06aef5c3cc7be6781a27
font_01_sfnt_off0007dc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC26 20200 bytes
SHA-256: 28473c4f0d4be039d2e45881e51c3cea8c2db69e62e424d8a02ec6c8206bf9f4
font_02_sfnt_off000818ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x818FF 16692 bytes
SHA-256: 5cd0ec612ce7bd5acccd6a04faaff456ea2f21c113fe5660994918ebf5360500

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