Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d6f01a90023d7a0…

MALICIOUS

PDF

44.0 KB Created: 2020-08-12 11:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d5b72f297fa153b9b39bf54efc9e06d SHA-1: cc7513121ec94d8a168bf7d83a5002bf0f3039ac SHA-256: 9d6f01a90023d7a07e7cd4e4fbb3c72f3cd5cd882d11a943ae0abb22e36f9f6a
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document is designed to appear as a search result for a book, as indicated by the document body and embedded URLs. It contains a large number of external links, many pointing to Shopify domains, which is characteristic of a link farm. One of these links, https://ttraff.cc/pify?keyword=paradox+of+choice+book+pdf, is identified as a malicious redirector, suggesting the document's primary purpose is to lead users to malicious content.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.cc/pify?keyword=paradox+of+choice+book+pdf
    • http://files.focusedlifecoaching.org/uploads/1/3/1/3/131379949/9e07403d3.pdf
    • http://juwija.gmsphones.com/uploads/1/3/2/7/132740720/16eb6c9b33.pdf
    • http://files.putaboogonit.com/uploads/1/3/2/6/132683001/6276438.pdf
    • http://files.blisstravelservice.com/uploads/1/3/1/3/131398322/pedosimexa.pdf
    • http://files.ashtangaingroningen.com/uploads/1/3/1/8/131871633/ecb0f1edd7543.pdf
    • https://cdn.shopify.com/s/files/1/0439/2737/1931/files/sanesapafoxafopaxavanemat.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/tepiko.pdf
    • https://cdn.shopify.com/s/files/1/0432/8482/4222/files/betevi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6503/files/scope_creep_in_project_management.pdf
    • https://cdn.shopify.com/s/files/1/0431/8026/1525/files/xolelu.pdf
    • https://cdn.shopify.com/s/files/1/0437/8787/8549/files/fallout_3_railway_rifle.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88065476392.pdf
    • https://cdn.shopify.com/s/files/1/0432/4835/3442/files/9585542027.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/guxakugofas.pdf
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/73322347681.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/wegevuwokaxovo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6612/0609/files/tipijizeguvurisumanakuna.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/timoresojitepa.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006df4.bin
14fefcb85f9c591b719dc723573b9cfb0211fd67bf7f1a05d74495fee3f2c9c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF4 5308 bytes
font_01_sfnt_off00007ff6.bin
97dd4c7317e81a392b68d95ce6c086c09df45355ac1e3f0966a9817e7c69ed45
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF6 10104 bytes