Malicious PDF — malware analysis report

Static analysis result for SHA-256 7134d7eb6aa3780c…

MALICIOUS

PDF

37.6 KB Created: 2020-09-20 19:17:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00300c7518dcf1cbb1046a7192527e44 SHA-1: 11802127241da833f53894d70c905ccbbef15d1b SHA-256: 7134d7eb6aa3780c91e2da7e315a11a68f9e307e3f0c4fd6ae4eb52526b44720
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=flappy+golf+hacks'. The document body also contains this URL, suggesting an attempt to trick the user into clicking it. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic, though most of these specific links were classified as benign. No scripts were extracted, but the primary malicious function appears to be redirecting the user to a potentially harmful site.

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.link/wix?keyword=flappy+golf+hacks
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/2016_subaru_forester_maintenance_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0436/2931/4206/files/rabies_borislav_pekic.pdf
    • https://cdn.shopify.com/s/files/1/0429/5373/6348/files/bihar_si_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0463/0947/4461/files/mailchimp_newsletter_format.pdf
    • https://cdn.shopify.com/s/files/1/0434/0203/5351/files/cs_1._6_podbot_plugin.pdf
    • https://cdn.shopify.com/s/files/1/0439/0980/8280/files/lord_baden_powell_information.pdf
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/kipajida.pdf
    • https://cdn.shopify.com/s/files/1/0435/3271/4135/files/lapelotusepeduliki.pdf
    • https://cdn.shopify.com/s/files/1/0431/5391/6060/files/25722463737.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/18571687971.pdf
    • https://cdn.shopify.com/s/files/1/0458/5658/7929/files/tofivezalomofur.pdf
    • https://cdn.shopify.com/s/files/1/0430/4293/0842/files/vefusexomavalonuzo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9833/3599/files/vugogup.pdf
    • https://cdn.shopify.com/s/files/1/0465/0598/4158/files/deligafosafoxunokexap.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5425/files/26779788328.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_off0000560e.bin
2e9e62b54d34098f03f7778f513a6f6f0ea3887a113a17721690bbf9024bc7ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x560E 5304 bytes
font_01_sfnt_off00006835.bin
3e004685ea4686d38f76938f7b615c13140735a7619ad33f4806f1941b76e6de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6835 9920 bytes

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