Malicious PDF — malware analysis report

Static analysis result for SHA-256 81c86ebd34257784…

MALICIOUS

PDF

56.8 KB Created: 2020-08-30 23:06:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d92cbc75acf93207f85efb03bbd1a67 SHA-1: 4e28aaa5cae584eb85f9a11086d56fbca02ce9a0 SHA-256: 81c86ebd34257784b65d3f9bdcd4575c97591c076f5710d3015be4421375788f
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, identified as a link farm. One of these links, https://ttraff.cc/wix?keyword=samantha+sloyan+nude, is flagged as a malicious redirector. The document body contains garbled text but also includes the same malicious URL and several benign-looking PDF links, suggesting a lure to a malicious site. The primary attack pattern involves redirecting users through the malicious link to a potentially harmful destination.

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.cc/wix?keyword=samantha+sloyan+nude
    • https://static.usrfiles.com/ugd/b8c837_e845fd0198bb4c04b1eee8f4c57892d6.pdf
    • https://static.usrfiles.com/ugd/a382ee_a1dfba89e1494ce894cf23103586f3ef.pdf
    • https://static.usrfiles.com/ugd/b8c837_978971eaf1974ee1af97df57273f0ca0.pdf
    • https://static.usrfiles.com/ugd/b8c837_e3625d85e0564200a1a4d28d1576a5a4.pdf
    • https://static.usrfiles.com/ugd/65b209_41227d27117f4c0ea0be69a155999e53.pdf
    • https://static.usrfiles.com/ugd/b8c837_e7de6c0e9c0f4e4997a8b8111e050aa8.pdf
    • https://static.usrfiles.com/ugd/906e9f_0ceeee335e514f88ad7e41ed87cf580f.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a8fc68806234fb794227a31545e13cb.pdf
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/gastrointestinal_system_physiology.pdf
    • https://cdn.shopify.com/s/files/1/0433/1307/0238/files/star_spangled_banner_sheet_music_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0436/2171/2034/files/reinstall_windows_store.pdf
    • https://cdn.shopify.com/s/files/1/0456/5198/4551/files/raging_bull_polo_shirt_size_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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000096ba.bin
16d4bfd823557882fa9f8b3b5a919bbb28435041dc4b12b52b16d13cefb5a152		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96BA 5172 bytes
font_01_sfnt_off0000a81f.bin
a44b1a78367761bf488065923b928a7948dfeeb9584a703f9818298e70ab02ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA81F 15132 bytes

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