Malicious PDF — malware analysis report

Static analysis result for SHA-256 c67c57cf96469359…

MALICIOUS

PDF

46.3 KB Created: 2020-08-31 05:14:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80f5d32338571073d81bf6a49568d7bf SHA-1: 583f220285e4b4d77d8205b9f6cc7dfff5af6414 SHA-256: c67c57cf964693597e6670cba354f6a3938f5cec368f0cea99c58fb95b14f4d4
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 the primary links, 'https://ttraff.com/wix?keyword=ashley+lucero+porn', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other benign-looking PDF links, suggesting a coordinated effort to drive traffic to malicious sites, likely for spam or phishing purposes.

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=ashley+lucero+porn
    • https://static.usrfiles.com/ugd/b8c837_4456d4e8d39a47e0b54fa0663237473a.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_61cb35916a1541d3b16f2c488f97e48c.pdf
    • https://static.usrfiles.com/ugd/8ba634_41dddf22de24460e9b26a5c872e5ca14.pdf
    • https://static.usrfiles.com/ugd/3b47cb_42c483f8cd97424cac78f1a4ced0e89b.pdf
    • https://static.usrfiles.com/ugd/c3f88d_1f0ec4e351ea4953846a39e3f9bb384a.pdf
    • https://cdn.shopify.com/s/files/1/0434/3876/8294/files/filajegoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/7083/2283/files/momezareleze.pdf
    • https://cdn.shopify.com/s/files/1/0440/2449/6286/files/define_pedagogy.pdf
    • https://static.usrfiles.com/ugd/b8c837_38511c11674340fa94f471187ca1020b.pdf
    • https://static.usrfiles.com/ugd/8acad3_f889e25255bc4e17bdf72a1c6d88fadb.pdf
    • https://static.usrfiles.com/ugd/b8c837_036edfe4fecf43169e19388be727cec1.pdf
    • https://static.usrfiles.com/ugd/b8c837_b134deba61ea41e5b8d411481a5f561c.pdf
    • https://static.usrfiles.com/ugd/7dd30d_9939a2e8059f4e7695d0a1fb75f9d1ae.pdf
    • https://static.usrfiles.com/ugd/353d00_2423c46889ff4e8faf3fc94113b82586.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058fb.bin
adaa31fcea146e1f40a92f7dcfaac9e6ff89c37246795b0cdddfa44da336d9c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58FB 4900 bytes
font_01_sfnt_off000069a6.bin
efe528ae0556cc601dca9ba12e1089abb71b3884f5ba91303e5c785e0f7cb190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A6 14276 bytes
font_02_sfnt_off0000970a.bin
1ae174bfd3001b3a603fabd844fd5c94b8ad0fa2b62750bb02e261d7055a9a36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x970A 16248 bytes

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