Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dd50b6be09846bb…

MALICIOUS

PDF

51.1 KB Created: 2020-08-31 10:53:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 855da203007b4483b22e74c1c78ff86c SHA-1: 4a27e572b97989f09b1c58351a0737021916caa8 SHA-256: 8dd50b6be09846bbca63d67820a1566e37aee01aa8c7cf46cffadd4f7a0bc315
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. It also contains a PDF SEO link farm heuristic, indicating a large number of embedded links, many of which point to 'static.usrfiles.com'. The document body, though heavily garbled, contains the title 'Superior battlemage armor schematic' and the malicious URL, suggesting a lure to a malicious site.

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.ru/wix?keyword=superior+battlemage+armor+schematic
    • https://static.usrfiles.com/ugd/696b8a_dd864cb4f6db41ae8fabbfc34c834b34.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f066c0bc46c47048f988b9d4575c723.pdf
    • https://static.usrfiles.com/ugd/b8c837_25543622b9ae4d07bb1ea74336628cf4.pdf
    • https://static.usrfiles.com/ugd/834936_dec2f79cdebf45128d77db0b1f6a8340.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/mebaxozivezobujusuzidudiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7707/files/alphanumeric_codes_in_digital_electronics.pdf
    • https://cdn.shopify.com/s/files/1/0438/1537/0912/files/actualizar_whatsapp_2018_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/tuluvim.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/13883062786.pdf
    • https://cdn.shopify.com/s/files/1/0435/1308/6106/files/korijufa.pdf
    • https://static.usrfiles.com/ugd/b8c837_fbd1a2af1ae94595991240fcbf6f8176.pdf
    • https://static.usrfiles.com/ugd/b8c837_73d16bc170234d44851759f3809eb90f.pdf
    • https://static.usrfiles.com/ugd/a91264_71a1161f2b304677af56c7058c4d7402.pdf
    • https://static.usrfiles.com/ugd/764aaa_0c1b351c84634b0cb288e29efdbde0cc.pdf
    • https://static.usrfiles.com/ugd/5ad03d_95cfc4de9f3b4649835254739d092713.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007296.bin
25be8de6e1350803951c57fdcfa2cecbaea090dbcd68f788e6aa0926dbc7a76e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7296 5592 bytes
font_01_sfnt_off00008569.bin
cdc56bba791b77e0abfc7e84391cf40b2645e76457bdf09706726a2d88ce50fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8569 10780 bytes
font_02_sfnt_off0000aa04.bin
71ca55bb03475e3e07f3ec67579ff007174a95d275f1f7a4e3b7830e50ff3fbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA04 16160 bytes

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