Malicious PDF — malware analysis report

Static analysis result for SHA-256 467c6c2f90a5bf1a…

MALICIOUS

PDF

39.3 KB Created: 2020-08-25 00:26:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae5f02cefeb8f9fb2d7bdbe909fdf7fe SHA-1: e90028ee77f42da1a33907b6e8dc55198e5c55c1 SHA-256: 467c6c2f90a5bf1a89497c62b1d735234bd8b5cb8cc7e53f73389b849b26ea59
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify-hosted PDFs. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the ttraff.com redirector URL, which is likely used to funnel victims to further malicious content.

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.com/pify?keyword=on+screen+keyboard++pc
    • http://files.pjeterkoleci.com/uploads/1/3/2/6/132681938/f414f68e3faf.pdf
    • http://sateb.plebo.org/uploads/1/3/0/8/130874565/fobiwolomikuribo.pdf
    • https://cdn.shopify.com/s/files/1/0438/5813/3152/files/71608130339.pdf
    • https://cdn.shopify.com/s/files/1/0434/8254/6341/files/where_does_twitch_install_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/75713398414.pdf
    • https://cdn.shopify.com/s/files/1/0435/9772/5864/files/ac_market_ios.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/tinavurafofikaga.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/discord_markdown_generator.pdf
    • https://cdn.shopify.com/s/files/1/0447/5407/5799/files/latin_is_fun_book_2.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/86355626178.pdf
    • https://cdn.shopify.com/s/files/1/0435/9903/6579/files/la_esencia_del_budismo_tibetano.pdf
    • https://cdn.shopify.com/s/files/1/0440/4586/1014/files/nupenolixexinaguduf.pdf
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/ncert_class_11_accountancy_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/9408/1687/files/tazan.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4664/files/best_flash_video_er_chrome_extension.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_off00005ba7.bin
f40799fdd46bbdb7c5d2c8446e7eb06eaacb00899b9c0b8a6f2cc06664c69444		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA7 5368 bytes
font_01_sfnt_off00006dee.bin
f8101b57297d80240141716d307a82ea48b9f9ce8c00045c45ff359f291d41d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEE 10096 bytes

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