Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c2d9fd89d3b303…

MALICIOUS

PDF

44.4 KB Created: 2020-11-05 02:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 461628fa7f29c0a243eee60411079b7a SHA-1: 1926b54ef1fb18beaaea4a326ab597a05815b24e SHA-256: 92c2d9fd89d3b30371632f89602d9f7d6f4b2999474e46be349b0a34bc81b6ed
102 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

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

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/123?keyword=black+panther+123+full+movie In PDF document text
    • https://cdn-cms.f-static.net/uploads/4404529/normal_5f9cff182a04f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459936/normal_5fa0fbef2e109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366346/normal_5f8b8015d6048.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426828/normal_5f9f070dae3bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391893/normal_5f954953df09f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388405/normal_5f96f26835ddf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393790/normal_5f9e1a4d28d9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5f8b99788f949.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/450e06d7-be41-40dd-979b-423bcee699b5/secret_life_of_bees_chapter_12.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/32252542090.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/pre_calculus_grade_12.pdfIn PDF document text
    • https://s3.amazonaws.com/mogelebolep/90218334375.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/84956928542.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_off00006be3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE3 5596 bytes
SHA-256: f002f41b6932618748c1be3dc712aaa64f45680ac97efef4aab2a8441143f35d
font_01_sfnt_off00007eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDA 11108 bytes
SHA-256: 810b62401ff98addb15867e0c76645041484e5a081b1e354be12df397ed35ed4

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