Malicious PDF — malware analysis report

Static analysis result for SHA-256 563ad53d847dcfd4…

MALICIOUS

PDF

46.0 KB Created: 2020-11-01 09:17:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 91e4014ce917fa94e8a6b55657818e27 SHA-1: 72d79a45efd22e2c629eb293e95777d3e0f332ec SHA-256: 563ad53d847dcfd4c4670b23f4e62937015786c2b0a2776ab8a7678c1be13a65
94 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a link to known malicious redirector infrastructure. The embedded URL, https://ttraff.com/123?keyword=sarcophagus+with+reclining+couple, is the primary indicator of malicious intent. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to lure the user to a malicious site, likely for further exploitation or phishing.

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://ttraff.com/123?keyword=sarcophagus+with+reclining+couple In PDF document text
    • https://moguvikob.weebly.com/uploads/1/3/0/8/130874292/6594843.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389606/normal_5f9894352befd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366032/normal_5f87be6eac560.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372399/normal_5f8cf1ac1d829.pdfIn PDF document text
    • https://tedovuja.weebly.com/uploads/1/3/4/4/134465286/cd786.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413008/normal_5f94efe9a030b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421217/normal_5f9d736611065.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370791/normal_5f8c6e538d895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376878/normal_5f993cecd7975.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/henghuili-files2/jinaxawunojasozilaka.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/chinese_food_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/6814/3798/files/come_as_you_are_book_download.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_off0000741c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x741C 5388 bytes
SHA-256: 6cc2c647bb45283dd9a98eeb7b2061fdbc6279822bc11ce658c00719dac9eb15
font_01_sfnt_off0000867c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x867C 10784 bytes
SHA-256: 18c92161b67faa4853843aeddda82de0fc35f5aaa7213f28dc9112bcb0d7c420