Malicious PDF — malware analysis report

Static analysis result for SHA-256 97192704320de364…

MALICIOUS

PDF

47.2 KB Created: 2020-08-31 13:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a43b1657c9326e69a424dc9122296f64 SHA-1: 2f7824a41d6f6daaf1ef9bb6df4b11fddf667973 SHA-256: 97192704320de364b8582bb8ec3825d07bc2fcef731c502d292bca7b7a099ba7
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a malicious redirector link that leads to a URL associated with known malicious infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Juegos de agua y fuego oscuridad', likely intended to entice clicks. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to mask the malicious redirector.

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/wix?keyword=juegos+de+agua+y+fuego+oscuridad
    • https://cdn.shopify.com/s/files/1/0429/0081/6028/files/mudugejunixominukuzapisot.pdf
    • https://cdn.shopify.com/s/files/1/0437/8791/1319/files/biofuel_production_from_microalgae.pdf
    • https://cdn.shopify.com/s/files/1/0434/0849/0663/files/nadezepojab.pdf
    • https://cdn.shopify.com/s/files/1/0431/4411/8423/files/29859030538.pdf
    • https://cdn.shopify.com/s/files/1/0432/4058/7423/files/.pdf
    • https://cdn.shopify.com/s/files/1/0440/1417/4358/files/coleman_rv_air_conditioners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/0537/6669/files/bruynzeel_storage_systems_annual_report.pdf
    • https://static.usrfiles.com/ugd/b8c837_73a997d589bb4aad9a06a1fbfdf871ed.pdf
    • https://static.usrfiles.com/ugd/48d9a1_cb6d4ce64f8d4468b02280405f4f99c8.pdf
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/wasoluxaponalugudemokako.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/pajeloluvotaboki.pdf
    • https://cdn.shopify.com/s/files/1/0428/8485/8022/files/scalable_agile_framework.pdf
    • https://cdn.shopify.com/s/files/1/0429/3358/4028/files/5777522318.pdf
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/newutunamurekobel.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069a4.bin
8e5fe548388a0087ead49cd9b8214936314fd07422114e850851e6b2233d99f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x69A4 5248 bytes
font_01_sfnt_off00007b97.bin
474d2a498a5b57fdd926360a235a68187c2e76e0fb47a074090a3cf24b03db33
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B97 11048 bytes
font_02_sfnt_off00009fea.bin
1969d4c4ead97766f63f187f6fda1bf4e5aabe9cc8e0d9d42c48d8078e941509
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEA 4068 bytes