Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa4e683d7a6711c5…

MALICIOUS

PDF

42.5 KB Created: 2020-09-06 16:51:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47f91ab55a5d6a5116e33ae16333630b SHA-1: 61bfc2ef91489f13c04ce9c029550d6b23627946 SHA-256: aa4e683d7a6711c5e296fd13a72dbed341319febb369bd6582ef5bf2878ae7d5
120 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 'https://ttraff.link/pify?keyword=brookville+lake+fishing+report'. This URL is embedded within the document body, suggesting a social engineering lure. The presence of a PDF link farm heuristic further indicates malicious intent, likely for SEO poisoning or distributing further malicious content. No scripts were extracted, and the document body is heavily obfuscated, but the primary malicious indicator is the redirector URL.

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.link/pify?keyword=brookville+lake+fishing+report
    • https://static.usrfiles.com/ugd/135178_6e5a5a96bb914bffab8822669a396fef.pdf
    • https://static.usrfiles.com/ugd/760a88_27607683b379401db85e9e6cd2fcdfbf.pdf
    • https://static.usrfiles.com/ugd/978dd5_70c414940d8f4b1cb7e348252bed18ab.pdf
    • https://cdn.shopify.com/s/files/1/0434/0839/2353/files/sociology_syllabus_for_ias_mains.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/55934157458.pdf
    • https://cdn.shopify.com/s/files/1/0431/4526/5318/files/poreramatepinob.pdf
    • https://cdn.shopify.com/s/files/1/0463/5131/9202/files/ibm_system_x3650_m4_server_guide.pdf
    • https://static.usrfiles.com/ugd/0e2875_5e652750608f4c999c75097209d5c3c0.pdf
    • https://static.usrfiles.com/ugd/11276f_2a8b11abd7f8406298e9487730e38888.pdf
    • https://static.usrfiles.com/ugd/185c00_44a6668dd51949378154a1efa9564eeb.pdf
    • https://static.usrfiles.com/ugd/b8c837_e73519f9ed3340439bb3c4590368a882.pdf
    • https://static.usrfiles.com/ugd/3b7182_7d5d518a3c56421ab82280fe5ec0cb33.pdf
    • https://static.usrfiles.com/ugd/b8c837_9cd1557c1c2947198157ca595f286777.pdf
    • https://static.usrfiles.com/ugd/b8c837_39d101f5df8f412494bf6d202484333c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3b7e6ba1dcd4a3a8e9da07b81913988.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_off000068e5.bin
6a692a3b20fd9c395051127534002912598bb7dfbe74a0c1d02215c810ccf624		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E5 5336 bytes
font_01_sfnt_off00007b19.bin
eef2cd51adce7bdb310a5492478e706fa0ccc7545df75ce2c516f1a7e1b13aef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B19 10060 bytes

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