Malicious PDF — malware analysis report

Static analysis result for SHA-256 adfaddd782cc2adf…

MALICIOUS

PDF

69.0 KB Created: 2020-12-05 10:54:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ceb74fd26632d8d2910ee292d94fcd4d SHA-1: da2e3a2cad5a66bb99f64e1fd7868f9f8e10eac8 SHA-256: adfaddd782cc2adf13b71476bc8d5c5f321721ec8a6acc5217282014edbeca57
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffking.ru/strik?utm_term=radio+flyer+ziggle+wheels PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370780/normal_5fb681373bb73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418777/normal_5fa3c82f11541.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373243/normal_5fc3a1d756dbb.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/pevuwarobuvowa/40997108093.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/96130385554.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/20182790619.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d5ed3c8-662d-488d-a4b2-977a3b7d537c/puvajowifitavejat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd2ca47a-375c-4059-971c-455af2f0527b/lucas_hernandes_dias_lopes_downl.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/st_pius_x_broomall_pa_website.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fc79d7d-829a-4e55-9feb-e59bb86f77fd/gowejusemarivem.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/kangaroo_linguistic_contest_2016_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc524ccc30a162e0c6e112f/t/5fcaa38a9bad9c6911b296e4/1607115658180/retro_speedometer_bicycle.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_off0000b976.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB976 5420 bytes
SHA-256: 949ce43514c0c38d5dc0ea09ee6d5246fafaaf8d3d0ce50ffd45509b926603e7
font_01_sfnt_off0000cc05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC05 11228 bytes
SHA-256: 0b76587cd27d0b35115e2ab640612944226687aa565be3d7c36614ccb840c4e4
font_02_sfnt_off0000f1f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F3 16136 bytes
SHA-256: 4a82d930af4ff3021f3d19cbd37464c8e664c90bef13661c9db69df894853898

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