Malicious PDF — malware analysis report

Static analysis result for SHA-256 d41fe8c3f32b29ca…

MALICIOUS

PDF

35.1 KB Created: 2020-08-29 23:28:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62b6256d9352ec5d18370494916c8771 SHA-1: 90624cfee612b3ba7b726dd633b8eb4eab01bb93 SHA-256: d41fe8c3f32b29cafed78ab87dca8a9b8c01e3109ff2eda32ffe3acfb0e49a7c
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.cc. The document body, though heavily obfuscated, contains text related to 'Roblox jailbreak' and the malicious URL itself, suggesting a lure to a phishing or malware distribution site. The presence of a PDF link farm heuristic further indicates a malicious intent to distribute 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.cc/wix?keyword=roblox+jailbreak+paseo+a+trav%25C3%25A9s+de+p
    • https://static.usrfiles.com/ugd/455f95_56c59a94ed044efb9337164697ca4506.pdf
    • https://static.usrfiles.com/ugd/724bd4_60d588b81a984d6286993c0767e25ea6.pdf
    • https://static.usrfiles.com/ugd/daca0d_f8f98f8b010a474a8d63d19c72ca00d8.pdf
    • https://static.usrfiles.com/ugd/3be3a7_1dc01ff1dfb54f8c8d118c9ffb70192d.pdf
    • https://static.usrfiles.com/ugd/b8c837_6cbe9559c863461eacd58ca2464365d1.pdf
    • https://static.usrfiles.com/ugd/b8c837_563c20ddf4b743918a3473b6aaa67e21.pdf
    • https://static.usrfiles.com/ugd/b8c837_a7543a49c0ef427ab294ad4b80b9a20b.pdf
    • https://static.usrfiles.com/ugd/b8c837_2dec5066c5b74e60b54c8eea77a3ec30.pdf
    • https://static.usrfiles.com/ugd/b8c837_82d1aec97a9741bb9f23b1b8250a3e55.pdf
    • https://static.usrfiles.com/ugd/cf14a4_6383d9338ddb428a8b16b812c0badf20.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa573429fb52486d9ceffad07794d9fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_d94b033543fd4ea18abc292643af1d68.pdf
    • https://static.usrfiles.com/ugd/8b9728_0c6b8b51e61a4bbb9846ca5533a0f677.pdf
    • https://cdn.shopify.com/s/files/1/0465/5012/2654/files/dada_gana_baja_de_song.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6372/files/66267933611.pdf
    • https://cdn.shopify.com/s/files/1/0429/4151/3894/files/rizipadefipoxinefokageje.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_off00004870.bin
b7f51c5cebadd6ccc00be1a1ebc0d4c7abbb54b20afccda48f4088b2013d2c5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4870 5512 bytes
font_01_sfnt_off00005b05.bin
6c04431fded021e23d22b776ccda78b730ea4cd0c59c8408cb2f9fb1a464cb1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B05 10420 bytes

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