Malicious PDF — malware analysis report

Static analysis result for SHA-256 d20b8bcb59c1c7f7…

MALICIOUS

PDF

36.2 KB Created: 2020-08-31 06:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 698b34dc8faf48ff7987435ba4a0ce4e SHA-1: e3651bab8fe22f9d44e18ce25c969f61c9d8b10e SHA-256: d20b8bcb59c1c7f7af3d8f44510060d7f3e8aa92dfd2efcdb6410bdb7503afb0
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure at 'ttraff.com'. While many other links point to benign Shopify domains, the presence of the malicious redirector suggests an attempt to lure users to a compromised site. The document body contains garbled text and embedded URLs, further supporting the malicious redirection attempt.

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=zion+episcopal+church+wappingers+fal
    • https://cdn.shopify.com/s/files/1/0437/2037/6474/files/20703175920.pdf
    • https://cdn.shopify.com/s/files/1/0431/7793/5004/files/neonatal_jaundice_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/ratofifulumajonimerarozo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8697/8984/files/39496589373.pdf
    • https://static.usrfiles.com/ugd/b8c837_75d174eab1064ba5aaa37a2a460d1a06.pdf
    • https://static.usrfiles.com/ugd/b8c837_cea3199576644389b9583389d8169e8e.pdf
    • https://static.usrfiles.com/ugd/314c35_7e256a59270f43c792337c650856b59b.pdf
    • https://static.usrfiles.com/ugd/e6092c_b9fda58e6a1b453c9ce0480b2ee5fdff.pdf
    • https://static.usrfiles.com/ugd/b8c837_bbe3e27c4de042d8b924d2f59be0f480.pdf
    • https://static.usrfiles.com/ugd/724fb5_f12f98f587c34f8aa5891b2a77087301.pdf
    • https://static.usrfiles.com/ugd/b8c837_c87dbd217165444982bf33fe136bafaa.pdf
    • https://static.usrfiles.com/ugd/b8c837_47b202d7a54d49bcb8fff20e4828ace3.pdf
    • https://static.usrfiles.com/ugd/d1c05f_d05550a845704f978a2ab31327adda52.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf741a8d945f49c5a699f7df45f2abdf.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_off00004e43.bin
ef99a49b25178fd13b5c9081b786bbd1afa5d4e5acbf4f7d5ad8035b184cd1cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E43 5328 bytes
font_01_sfnt_off00006068.bin
3a9e008cf9bc1f9d4a6a0d48044f2ad1c87fee978c8747348a1cd1413d19697e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6068 10748 bytes

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