Malicious PDF — malware analysis report

Static analysis result for SHA-256 9def2793077206ca…

MALICIOUS

PDF

69.8 KB Created: 2020-12-22 17:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0e8b1862b52c2030afee05f342f2efa2 SHA-1: 28164c476a1aab27fde040b12ed2acbae4d1b360 SHA-256: 9def2793077206ca4d8ab1e80309445153ef3c1ff030d64643444bb44d83f199
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://traffset.ru/strik?utm_term=soap+cutting+machine+coimbatore PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414488/normal_5fd1e66a2df73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388040/normal_5fb33fdb37384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373504/normal_5fa89bf72e0e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f87bc477b00f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/801360f2-50b6-4fe3-aac6-661427b8f726/dibaxokopuriwiwotipu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c70da75-0837-4d84-ae17-e58bcce1b801/mil-hdbk-454_guideline_9.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c7ba47b-eed0-4402-b8fe-efcfc6ec2984/panasonic_sa_pt170.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd0dba6f-1889-4724-9b95-1787454d0271/33184217353.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa19f4a6-2917-4771-8898-74583d22b3f1/rakef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ea63b27-263d-4e1d-8984-0f4fcd665278/when_calls_the_heart_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4355cfe5-2c8a-451c-989d-5293a1e835ea/4419377382.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80a47f0a-35f0-4728-8774-285e319123c8/65567105372.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cda554d-e6c2-4e8a-acba-6fc5c18c62df/50032989112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a93f4f8-3480-4c3d-b884-bf84c0e6ddbd/72773318162.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c69c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC69C 3120 bytes
SHA-256: 16a0685b1af8f7ff3286410c82d065b2ef9dd16f5cc5e004aadb0dd239daad33
font_01_sfnt_off0000d1cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1CF 5380 bytes
SHA-256: 265a8a849dce88e2e255944a8da19a1d369637eb94ad43dfc7d4da2371dd8212
font_02_sfnt_off0000e3eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EB 11260 bytes
SHA-256: 718ba652469d1b12311ffef01ed14bca6ff33b7cfb707bb4df1e022c6320d617

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