Malicious PDF — malware analysis report

Static analysis result for SHA-256 866c67f8042c7202…

MALICIOUS

PDF

46.1 KB Created: 2020-11-01 01:40:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 94e106474d96a1e93e0a6f5c392fedf1 SHA-1: 952a4ea4c33f7c1c9c155191c94575745d15d96c SHA-256: 866c67f8042c7202fa8d68ad019d5cff49bf0ed8501933715a6518392361c0d1
94 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 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 1.0000

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://gettraff.ru/123?keyword=7.2+cell+structure+worksheet+answer+key+biology In PDF document text
    • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/0682a18976.pdfIn PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/fugelusaniropu_rotijures.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/1/0437/5268/5720/files/bobejanizepoguvatigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6588f82d-387b-470b-9359-16e3e23dde63/wards_pharmacy_ellisville_ms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67ac4711-a2d5-47d3-ba1c-a6d81706ba9c/78091842322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4214/6984/files/android_tutorial_for_beginners_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9300/9604/files/biburojezesukuvejav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/199f45c2-1a96-4a2c-b7b1-d4845178e2d7/social_cultural_landscape_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/025fadac-b182-4c22-8e34-e8b19f966d31/75095021701.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3c27505-9e4b-4b54-8408-3d81b6ca31b7/pomiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/4218/2563/files/3477359372.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36872e79-f545-4590-b568-098307ecc499/70359418606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9043/4455/files/free_way_to_edit_documents.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5797925-040a-4bfb-a5df-2362dd47fe46/23947210914.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D4 5608 bytes
SHA-256: e307d77e6176410a697096f619876849a20ae22be449fb7fdb5af8e539edcf10
font_01_sfnt_off00008716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8716 10728 bytes
SHA-256: 56491e60a54c2135e337f56b774debd67e2d5e959063a25a3be72bba529c72d6

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