Malicious PDF — malware analysis report

Static analysis result for SHA-256 8722552d01ff7579…

MALICIOUS

PDF

131.9 KB Created: 2020-09-18 19:53:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4bc9e91afa4058fbdf5f3336e62a4d2 SHA-1: 0ec255717ad5ad8c28f6a1899d203730888f4abc SHA-256: 8722552d01ff757947e2309908b153b2a90648f4dd6c64f1058ed5391e7ed6d2
154 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, disguised with keywords related to the Utah driver's license division. The document body, though heavily obfuscated, also contains this URL, suggesting a phishing or scam attempt. The presence of numerous external PDF links, many pointing to Shopify, indicates a potential link farm used for SEO manipulation or to host further malicious content.

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.com/wb?keyword=utah%20drivers%20license%20division%20draper
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/9124/4696/files/30285240911.pdf
    • https://cdn.shopify.com/s/files/1/0431/9464/6688/files/lubijukepodupenuras.pdf
    • https://cdn.shopify.com/s/files/1/0440/1378/1157/files/47117429160.pdf
    • https://cdn.shopify.com/s/files/1/0428/2993/8855/files/34973082115.pdf
    • https://cd8bd4de-4615-4aa8-b26f-077ab8ddafcf.filesusr.com/ugd/bbd3cf_ea9fdb90b09b4d66b65b9960ff320f47.pdf?index=true
    • https://a7fcfedd-6b4e-4311-9a8a-995b424894f9.filesusr.com/ugd/de60da_8c7b43780ebe44a38807f0107836e7c8.pdf?index=true
    • https://63c42fbb-c530-4274-92b8-a5377b97454c.filesusr.com/ugd/bfd78a_88f95d26e150467f875605aafd5aa778.pdf?index=true
    • https://ccb42147-71b0-4b86-ab30-ffb8f8139d7e.filesusr.com/ugd/8da65f_cc9efe676d5447c1bd718ac0936947f4.pdf?index=true
    • https://0f0c176e-eb5b-4b20-84c0-b48d68bbf95f.filesusr.com/ugd/1c8c1e_7f9a67420a8b4091acb34ea7cd6116e8.pdf?index=true
    • https://07b785e3-fc26-4d3f-8f41-15173e652300.filesusr.com/ugd/585b1d_26a5813cbe164a3b8e0dc9a4e0996306.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/album_reggaeton_2018_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/3349/3655/files/total_war_warhammer_2_high_elves_mortal_empires_guide.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_off0001be06.bin
29c5a8790008ec5ae6abc1b08c578e5940cb82cb07a87dd62826f94b33ae9362		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE06 5212 bytes
font_01_sfnt_off0001cfc4.bin
fe5ffc0e94fa734d71d379e8617f287a7305be3a5c7972ebc93783f760746b6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1CFC4 16468 bytes

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