Malicious PDF — malware analysis report

Static analysis result for SHA-256 215fa78b002554f8…

MALICIOUS

PDF

40.3 KB Created: 2020-08-13 23:04:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f49d04d8c8e25d822bd9a9f9f30b053 SHA-1: d0855eee9e9b3b84e0642e29057992b24f97beb6 SHA-256: 215fa78b002554f88c2848ed8c239d70e377f0fc8f39422f8d3a3acaa1916d40
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a lure to install a browser extension or update, and includes a link farm pointing to various PDF files. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=ph%25E1%25BA%25A7n+m%25E1%25BB%2581m+c%25E1%25BA%25AFt+file+pdf+tr%25E1%25BB%25B1c+tuy%25E1%25BA%25BFn', is identified as a malicious redirector. The document body, though heavily garbled, also contains this malicious URL, suggesting the primary intent is to redirect users to malicious infrastructure.

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=ph%25E1%25BA%25A7n+m%25E1%25BB%2581m+c%25E1%25BA%25AFt+file+pdf+tr%25E1%25BB%25B1c+tuy%25E1%25BA%25BFn
    • http://files.mayusilkart.org/uploads/1/3/1/4/131411474/kotereruvoda-dumob-gepof.pdf
    • http://files.theplantshelf.store/uploads/1/3/0/8/130874030/subodiginogori-fixeveriv-saxamabub.pdf
    • http://fakub.cchymancompany.com/uploads/1/3/1/8/131872269/0fb4257a0a27.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdf
    • https://cdn.shopify.com/s/files/1/0434/4617/3852/files/dogetexakute.pdf
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/fukubofade.pdf
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/tunakafokorejudasimaruz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2324/5216/files/32581046996.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/39809419958.pdf
    • https://cdn.shopify.com/s/files/1/0432/6300/0736/files/72258159827.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/godozosotelezusazalune.pdf
    • https://cdn.shopify.com/s/files/1/0430/7910/6724/files/thyristor_firing_circuit.pdf
    • https://cdn.shopify.com/s/files/1/0432/8597/1112/files/rujebazuduje.pdf
    • https://cdn.shopify.com/s/files/1/0434/7019/2805/files/81719421312.pdf
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/modebusagexiwubefukorida.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_off00005707.bin
927e0c8da148a251e42449da03659ca982db1b3d8a7a98b9ebbc7484cbab7f28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5707 6148 bytes
font_01_sfnt_off00006a6f.bin
0e9a99438ddf5085e6b72760d0942d80180dc4ba82f25b76004de933508e8112		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6F 14048 bytes

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