Malicious PDF — malware analysis report

Static analysis result for SHA-256 fff574619205c34b…

MALICIOUS

PDF

43.7 KB Created: 2020-11-02 13:41:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: f7968c0fc14b5292aa64e8acd86f1e45 SHA-1: 30d519d51822a979a1c86cf7965f78773adeb6f4 SHA-256: fff574619205c34b8fe4a3e3a44d7c8fa35eb5dda74277fc5ecef4178a2af77e
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL, https://gettraff.ru/123?keyword=esther+hicks+meditation+night, is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious link suggest an attempt to lure the user to a harmful external resource, likely for phishing or malware delivery.

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=esther+hicks+meditation+night In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_5f9856b6db48d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410954/normal_5f9f72741e36a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376609/normal_5f9a72ac30daa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383165/normal_5f8bd81a8a88b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367903/normal_5f8d44204202b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366653/normal_5f87214ee7ea9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_5f876995e605f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405409/normal_5f9d4fe3dfdd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366004/normal_5f8749d59353f.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/f5f54731-4e47-4ea8-8c3b-910f9fba47e3/67002687194.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/939e67bf-5cde-42aa-bca9-a0ca18800bf3/junib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95904900-6082-46d0-a6e1-3826638e4a42/old_adventist_hymnal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecdc37fa-67e3-4666-b4d8-e955cb7b0482/56183778300.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ba5b583-8960-496f-8c90-6f3b8e3c3155/89475276391.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ade4d16-4584-4ca4-a60a-e8c35ace3aeb/rapawupifomubetitanup.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_off00006cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFD 5340 bytes
SHA-256: 6fccdca81e82221c4280ef3e795e4273c5fae43f9c04a658fbac6e7f306d9678
font_01_sfnt_off00007f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F00 10388 bytes
SHA-256: e2c63d3cb7785f760f8483e9b3e83da21980c8e51e5c8a5fa070304c8a2efa2b

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