Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3434405edfe0cd7…

MALICIOUS

PDF

43.0 KB Created: 2020-08-30 11:26:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f6899bc287730b84f55d1cb994e88c9 SHA-1: ee874773a14fb9c93c25d464c6e0b539236a2e39 SHA-256: f3434405edfe0cd76b88c4b3772a83eeb8405696b22ca49444c8f1eae7817a4e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com. One critical heuristic firing indicates a direct link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary purpose is to redirect users to malicious content through a series of links.

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/wix?keyword=creepy+doc+gives+her+the+cock
    • https://static.usrfiles.com/ugd/93971e_9f446f55f24842119c39e168929f312d.pdf
    • https://static.usrfiles.com/ugd/e32576_4a1817d0215242bf899ff90ae7520472.pdf
    • https://static.usrfiles.com/ugd/158fb9_3cc80fa35e01460f89685b9a2fc55e80.pdf
    • https://static.usrfiles.com/ugd/b8c837_9fb24b56143f48fe9235d6d03ba7d6b2.pdf
    • https://static.usrfiles.com/ugd/41a0b6_8bbf40268d404493bc49b1a8422a2ce2.pdf
    • https://static.usrfiles.com/ugd/b8c837_20ffe5153bf840dda99856ec899bec2e.pdf
    • https://static.usrfiles.com/ugd/9cb927_d5523900b5ed4996a3075a4c2f24753a.pdf
    • https://static.usrfiles.com/ugd/26481d_ae0af3f45f7f4b1d9d87cf4c8db28dc4.pdf
    • https://static.usrfiles.com/ugd/b8c837_c7d33ede001a4b4d9225f5edc0145288.pdf
    • https://static.usrfiles.com/ugd/b8c837_50d717412911452c9e850a5bb5fc6dc9.pdf
    • https://cdn.shopify.com/s/files/1/0438/6832/4005/files/android_17_tier_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/0875/3827/files/vaguroledotavinesunokajof.pdf
    • https://cdn.shopify.com/s/files/1/0457/7266/9084/files/70337206470.pdf
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/synthesis_essay_example.pdf
    • https://cdn.shopify.com/s/files/1/0434/7461/6472/files/fagopebozixivuromopa.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_off000069b7.bin
bbf007712b88f5fc24af7cb101f36c8418e024a860b9606ec43bcc36c7e05a56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69B7 5224 bytes
font_01_sfnt_off00007b86.bin
550da7f37b221a43d086c44bcd7eb6e35dea509ba45e98a6a29eb45107d4262f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B86 10316 bytes

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