Malicious PDF — malware analysis report

Static analysis result for SHA-256 f475270a10a445f0…

MALICIOUS

PDF

56.0 KB Created: 2020-08-21 14:25:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cc6efb4322fc83b9577a262447b5c13 SHA-1: b1f7b743ab068c0dd2880d71dbb0bbe34456ee0e SHA-256: f475270a10a445f09d1a3a4387d9017674b51c4e84fb379ddcb969af0f6b086b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bride+of+the+century+episode+10'. This URL is presented within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0438/4607/4525/files/76113916606.pdf', indicating an attempt to distribute malicious content or engage in SEO manipulation for malicious 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.cc/pify?keyword=bride+of+the+century+episode+10
    • http://files.romans8ministries.org/uploads/1/3/1/4/131437249/2454787.pdf
    • http://files.abaofiowa.org/uploads/1/3/0/8/130814112/2933726.pdf
    • http://files.frontieradjusterssteveklene.com/uploads/1/3/0/7/130775707/zesijasubede.pdf
    • http://laturawa.pnwhitelb.org/uploads/1/3/0/7/130776457/8692678.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/76113916606.pdf
    • https://cdn.shopify.com/s/files/1/0447/2917/2122/files/solving_quadratic_equations_examples.pdf
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/organic_chemistry_acs_exam.pdf
    • https://cdn.shopify.com/s/files/1/0431/0492/7905/files/voltage_drop_calculation.pdf
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/28998809252.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/34945416677.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/1705477854.pdf
    • https://cdn.shopify.com/s/files/1/0437/5258/7415/files/iodine_deficiency_disorder.pdf
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/80478667987.pdf
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/43221729987.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/vuzox.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/gasudifakajawujukir.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_off00009f58.bin
364552e6e21fd5ac13b38ed308ab0b8f8be1f2faa7392587a01d828932e00e05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F58 5348 bytes
font_01_sfnt_off0000b195.bin
c13294a347150f33f08d834b85a651740dcabe9869ba379aa4ececbd6f91e54c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB195 9764 bytes

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