Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1cca54292a20ea2…

MALICIOUS

PDF

41.7 KB Created: 2020-08-29 18:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 960a80a963fe7a90dbeffbbfbf4ec934 SHA-1: 51390fefc2f6ba7b06fddf653820914860d2a153 SHA-256: f1cca54292a20ea210bd65f9a0093dc922ae6529a9be21f47802a1a469e55af2
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. This URL is embedded within the document body, disguised as a PDF title. The presence of numerous other links to PDFs hosted on Shopify suggests a link farm or SEO poisoning tactic to increase visibility and lure victims. No scripts were extracted, and the document body itself is heavily obfuscated, making it difficult to determine further payload delivery mechanisms.

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=violence+the+enduring+problem+3rd+edition+pdf
    • https://cdn.shopify.com/s/files/1/0431/6548/3172/files/lakobejuda.pdf
    • https://cdn.shopify.com/s/files/1/0448/1181/3015/files/22856980227.pdf
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/33492286605.pdf
    • https://cdn.shopify.com/s/files/1/0427/9071/5548/files/sirezazafijurosilonaze.pdf
    • https://cdn.shopify.com/s/files/1/0433/6828/4319/files/decatastrophizing_cbt_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/7652/5984/files/suxepikopobupewuvafale.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/performance_evaluation_sheet_meaning.pdf
    • https://static.usrfiles.com/ugd/b8c837_7eaab494c2c649598140e8a8cbc426e2.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba0035ae294b45249612e16d9c4d1415.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_off000064cd.bin
34c776db001266966d31d1fc4ef462a94aa0eb367aee81a3ef9d267169e630d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64CD 5448 bytes
font_01_sfnt_off0000772b.bin
713511bb62e049171e51de3bd1882f8b43917189f6c16bc21361d49c0220b0e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x772B 10188 bytes

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