Malicious PDF — malware analysis report

Static analysis result for SHA-256 0132f73d08136c75…

MALICIOUS

PDF

43.2 KB Created: 2020-10-28 21:23:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 0ed8b9b0b3bb5bd5030e1739a9c85bf3 SHA-1: 0aa6cca84cb2c60738788c42f24ee1e1f73eafe1 SHA-256: 0132f73d08136c75b8e2f0676fcee31200d22e6f222aa1482b5f3f36bed0ccb9
124 Risk Score

Malware Insights

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

The PDF contains embedded links and text promoting 'xbox live codes for sale'. One of the primary links, 'https://ttraff.cc/pify?keyword=xbox+live+codes+for+sale', is identified as a malicious redirector. The ML classifier strongly indicates maliciousness, and the document structure suggests it's designed to exploit user interest in game codes to drive traffic to malicious sites.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=xbox+live+codes+for+sale In PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/zolowuxodotusuv.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/7373486.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366324/normal_5f8e4afaed6bb.pdfIn PDF document text
    • https://kigefewapese.weebly.com/uploads/1/3/4/5/134528385/sinazutafigo-begepim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375884/normal_5f89f4f0bec66.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/717d15148.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/3250b5961ed1.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/wexukufedepim/tojadedukanagubome.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/numumemologidexusubebawek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e618b92f-5dbd-42b6-8eff-fc9045f4651c/installdriver_table_manager_macrovision.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47233910-6995-4b96-8a0d-567b1c0f1c58/nulexotejotelazotovodo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6918793b-e554-47b4-a7af-760efc3be8d5/kojetisodepuketojitin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e76c142-0c2e-4383-85ce-abb081e011c9/mezavilexibepuranusabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab418fcc-3140-4c8c-8b62-21b65d5dc9ab/xozepamupenaduxememopam.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/political_anthropology_books.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/65097709186.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_off000068f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F1 5260 bytes
SHA-256: 625f4631142bfbed8f07b9723d73b3669cd88ad5b39211d66a8509c94b76d37c
font_01_sfnt_off00007ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE4 10908 bytes
SHA-256: fabc2dfcdde94212bed56942aee47892894b493d4ab0bf3676b6e8b491a53e78

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