Malicious PDF — malware analysis report

Static analysis result for SHA-256 b25b7ba9bde8e29e…

MALICIOUS

PDF

34.5 KB Created: 2020-08-18 18:17:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ab4e29215748b16ba9927f9604a2439 SHA-1: c5ec6f3d210d3a2ed4de074f8a48fe063cd77e44 SHA-256: b25b7ba9bde8e29eab64622419f36066615c30eab91fb206e687658054924176
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. One primary URL, 'https://ttraff.ru/pify?keyword=aurelion+sol+guide+mobafire', is identified as a malicious redirector. Additionally, the document exhibits characteristics of an SEO link farm, with many links pointing to Shopify-hosted PDFs. The document body, though heavily corrupted, contains fragments of the redirector URL and references to PDF files, reinforcing the link-based attack pattern.

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.ru/pify?keyword=aurelion+sol+guide+mobafire
    • http://files.thewanderlusteducators.com/uploads/1/3/0/7/130775350/32a47.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rosetotirumeza.pdf
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/ansar_shaikh_marksheet_preliminary.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/change_host_files.pdf
    • https://cdn.shopify.com/s/files/1/0436/8809/9993/files/ropupemu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4238/1725/files/wesibadoturifugamukawar.pdf
    • https://cdn.shopify.com/s/files/1/0434/6236/1245/files/greater_than_or_equal_to_latex.pdf
    • https://cdn.shopify.com/s/files/1/0435/4513/3207/files/maths_questions_for_class_6_cbse.pdf
    • https://cdn.shopify.com/s/files/1/0447/7186/8821/files/sport_medicine_journal.pdf
    • https://cdn.shopify.com/s/files/1/0430/9988/1639/files/investment_proposal_template.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/93211084816.pdf
    • https://cdn.shopify.com/s/files/1/0431/7052/9436/files/wozujufogetu.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_off00004ba4.bin
a1cc374476b8545e6b65d837af0c796fc622608e7adfa822a6b4ae832baf4477		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA4 5356 bytes
font_01_sfnt_off00005dbc.bin
cbfbf36d3c6e12caabe9039a3e7afbf43581796e5cc14666b4ae4035af24c2fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBC 9300 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.