Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e74da70924ad66…

MALICIOUS

PDF

42.9 KB Created: 2020-09-05 16:39:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f880d5faff1ba096d691e915451c9f7 SHA-1: af576a955f0e4758f86b53b70190c4560469a205 SHA-256: e9e74da70924ad66ca3be95ba582aee75f8cd6e4e0569168226211c97d7bb632
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=hasbro+guess+who+printable+character+sheets', is designed to lure users into clicking it under the guise of printable character sheets. The file also exhibits characteristics of a link farm, embedding numerous external PDF links, with the primary one leading to a potentially malicious redirector. No scripts were extracted from this sample.

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/wix?keyword=hasbro+guess+who+printable+character+sheets
    • https://cdn.shopify.com/s/files/1/0432/2036/9567/files/geological_map_reading_and_interpretation.pdf
    • https://cdn.shopify.com/s/files/1/0429/2699/7663/files/40910753131.pdf
    • https://cdn.shopify.com/s/files/1/0438/2982/1602/files/5630481260.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovovowegafakaroseras.pdf
    • https://static.usrfiles.com/ugd/cfa91a_68aa2009ee99450b92bcec1086c93d9b.pdf
    • https://static.usrfiles.com/ugd/33a16d_3d61128fd20f49b4ba2feb61ba85b5ba.pdf
    • https://static.usrfiles.com/ugd/79cb75_69a6eadb2444443099f79bc465a10a3b.pdf
    • https://static.usrfiles.com/ugd/b8c837_968179c5d19949a79b476ff8024bd77b.pdf
    • https://static.usrfiles.com/ugd/a64c8c_e6af81950b57481eafd562cc2b92ff43.pdf
    • https://static.usrfiles.com/ugd/49be48_9d7d46c67d354721866a403568a443a7.pdf
    • https://static.usrfiles.com/ugd/63022f_da31d9423e074a90ac43d39d76fa588c.pdf
    • https://static.usrfiles.com/ugd/c450b2_d429e47a9fb64ab1bad06ab63edc76fb.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_off00006841.bin
fa4d515ecd6dc70d3108aeb58007fa8102d3a40817b17ed409daf3dc5ba6b797		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6841 5388 bytes
font_01_sfnt_off00007a9e.bin
7609a2cc8fc1cda0ac692e7dbb0e00ab09cc68e2b64e2f068686ddcba24f9750		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A9E 10708 bytes

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