Malicious PDF — malware analysis report

Static analysis result for SHA-256 d110ab7ffac10f05…

MALICIOUS

PDF

44.7 KB Created: 2020-08-29 16:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e7c5393c9a11fc09e94e4cddf8cbe4f SHA-1: b233fe65e0a72925f08be5598de70dfa35ee126d SHA-256: d110ab7ffac10f056b31ae1e7572293957b16900202dfe8e27d3bfaa20f641d4
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/wix?keyword=victoria+2+reactionary+cheat'. Additionally, it exhibits a PDF link farm with numerous links to Shopify-hosted PDFs, suggesting a coordinated effort for SEO manipulation or content distribution. The ML classifier strongly supports the malicious verdict.

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/wix?keyword=victoria+2+reactionary+cheat
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.pdf
    • https://cdn.shopify.com/s/files/1/0457/0162/8060/files/95969051758.pdf
    • https://cdn.shopify.com/s/files/1/0435/5883/0231/files/la_arquitectura_del_academicismo_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/pokejerawe.pdf
    • https://cdn.shopify.com/s/files/1/0430/5482/5621/files/php_7_data_structures_and_algorithms_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/82179602088.pdf
    • https://cdn.shopify.com/s/files/1/0431/3533/6616/files/jusiwoneker.pdf
    • https://cdn.shopify.com/s/files/1/0431/3353/4369/files/61956070758.pdf
    • https://static.usrfiles.com/ugd/b8c837_c69a25be5569414c8ca8b10054670f96.pdf
    • https://static.usrfiles.com/ugd/7ff653_957730256a824a11933ac03e821be7d0.pdf
    • https://static.usrfiles.com/ugd/b8c837_55d04c07f51e4303a0146d706689667b.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_off00007263.bin
d18f633bb59de41bd9cd75e965baf70d5494eb41acbc49202c6d1d5e564c38b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7263 4876 bytes
font_01_sfnt_off000082f3.bin
5fedda3057d9ba81b3518548e6c23977d8ff26a8176a04a0e95e43023f02e3be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82F3 10420 bytes

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