Malicious PDF — malware analysis report

Static analysis result for SHA-256 132fb943911dfdad…

MALICIOUS

PDF

48.2 KB Created: 2020-08-10 14:54:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d46061e41bb74e304f07a8686c8a38fe SHA-1: 335f1b89205faba2d222bb21b1c3006ffe9d3992 SHA-256: 132fb943911dfdad76a17f3030f4aa8259634913a21c9da7333f7c22dca5949a
154 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, 'https://ttraff.cc/pify?keyword=disadvantages+of+technology+in+hospitality+industry+pdf', which is flagged as malicious. The document also hosts a large number of external PDF links, many pointing to potentially untrusted domains, suggesting a link farm or redirection scheme. While no scripts were explicitly extracted, the PDF structure and embedded links indicate an attempt to direct users to malicious content, likely for phishing or malware distribution.

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.
  • 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.
  • 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.cc/pify?keyword=disadvantages+of+technology+in+hospitality+industry+pdf
    • http://vekosiraz.genegousiecoaching.com/uploads/1/3/2/6/132681352/0820a109b93e7.pdf
    • http://files.quillenphysiciansehr.com/uploads/1/3/1/3/131383480/lisopip.pdf
    • http://files.cartelivision.net/uploads/1/3/0/7/130739379/8777752.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/8999/3636/files/need_for_speed_kickass.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/12475593431.pdf
    • https://cdn.shopify.com/s/files/1/0437/7971/9330/files/interview_questions_for_ece_freshers_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0427/5663/6828/files/fuwosov.pdf
    • https://cdn.shopify.com/s/files/1/0437/7100/3037/files/jetufanuvagodevobik.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/xavelun.pdf
    • https://cdn.shopify.com/s/files/1/0428/7227/5103/files/96038516425.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/vulojogedomuniwigovuvev.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/african_american_a_concise_history.pdf
    • https://cdn.shopify.com/s/files/1/0439/2858/4347/files/mesobakedifuxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/4325/8522/files/44325863650.pdf
    • https://cdn.shopify.com/s/files/1/0435/1282/3967/files/tojakawaki.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d90.bin
f22915cff961c8e2062224cc7aa16715f708aa1d35d7d40bc43b10cc178916f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D90 5580 bytes
font_01_sfnt_off00009089.bin
6f772508d249bf3d4cf2d44363ca93b8a8015504f6cd0365158d31f73d6ad6d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9089 10128 bytes

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