Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd4344a6199bfdf5…

MALICIOUS

PDF

40.6 KB Created: 2020-08-29 12:44:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96123f8a3c27bd2a74d8460a6b25e27b SHA-1: f6d5d9eb6197ed15ae4b40eebfa9478e9a047d8b SHA-256: bd4344a6199bfdf50597e1a58c0a26eb40b51e17d23d0a3d9590aae99718e874
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.com/wix?keyword=how+to+have+confidence+and+power+in', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of a link farm and a malicious redirector indicates an attempt to lead users to a compromised or malicious site.

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=how+to+have+confidence+and+power+in
    • https://static.usrfiles.com/ugd/ea9bdf_39bd8a58682542fe8ebd374f06b736b1.pdf
    • https://static.usrfiles.com/ugd/b8c837_6be1c08ab6f04fba8c62b1b55f411067.pdf
    • https://static.usrfiles.com/ugd/b8c837_01bd7025355e4564b718e80627547cb6.pdf
    • https://static.usrfiles.com/ugd/b8c837_e31b0f6e683e4d1d84451930a1387feb.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f9e3cc8fca1437bb4a68dfac41caea2.pdf
    • https://static.usrfiles.com/ugd/b8c837_fc268eb3c80d4c6ba4b203c087c52329.pdf
    • https://static.usrfiles.com/ugd/b8c837_1aebf2644115421aa3651062f9b44d5f.pdf
    • https://static.usrfiles.com/ugd/b8c837_f0d9ea0f57004c04b51958ec8cf844ae.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3cddb0cad2f4dfdb061d0873098eabd.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8fc5307b7c84764b06b437b970d8ec4.pdf
    • https://static.usrfiles.com/ugd/c836c3_8776d2dde91c47059fe6541c4187a172.pdf
    • https://static.usrfiles.com/ugd/b8c837_d444418520d14a84a5d78672c35875bc.pdf
    • https://cdn.shopify.com/s/files/1/0431/2337/6277/files/faperevukujum.pdf
    • https://cdn.shopify.com/s/files/1/0461/9026/4478/files/best_online_games_pc_no.pdf
    • https://cdn.shopify.com/s/files/1/0437/6412/1752/files/23938360100.pdf
    • https://cdn.shopify.com/s/files/1/0433/9482/6405/files/tibukiduxevixejokuzovu.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_off000062b5.bin
1b11b186f54cc8089211e67a6680414b8de9a0da39d2bf011278977f5200a9b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B5 5144 bytes
font_01_sfnt_off00007447.bin
44d8c342cb9d89c3be2521c9213042e250910d547c58057c2cc1d9ac4b387a15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7447 9728 bytes

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