Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2d0f35880392f63…

MALICIOUS

PDF

51.7 KB Created: 2020-08-29 09:27:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8746b040f17be8967f38dfce1b8cbf15 SHA-1: 738ecdb3124118376a55edc67dcc896aeaf8155b SHA-256: e2d0f35880392f63964958ea220d8f05f29c3d7d06db41ec321e20c496d36416
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=sleep+eric+whitacre+sheet+music+pdf'. This URL is likely part of a phishing or scam campaign designed to trick users into visiting malicious sites. The document also contains a large number of embedded external PDF links, characteristic of a link farm, further supporting a malicious intent to redirect users. No scripts were extracted from this sample.

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.ru/wix?keyword=sleep+eric+whitacre+sheet+music+pdf
    • https://cdn.shopify.co
    • https://static.usrfiles.com/ugd/b8c837_a153936927df48dbbdf7ad9dd26bfb88.pdf
    • https://static.usrfiles.com/ugd/b8c837_abff7d67d0614684a222a787738cb77b.pdf
    • https://static.usrfiles.com/ugd/b8c837_239e84ec9ba74095b28d89f3733aafcd.pdf
    • https://static.usrfiles.com/ugd/b8c837_a2a807880bc94fa796a6c93447feb93f.pdf
    • https://static.usrfiles.com/ugd/b8c837_f26ee052378b49ab8788594b0c1bd47c.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/48536794069.pdf
    • https://cdn.shopify.com/s/files/1/0437/3653/1095/files/product_development_plan_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0461/0942/5828/files/rozafadoxatinapeto.pdf
    • https://cdn.shopify.com/s/files/1/0445/4167/3636/files/5e_giant_soul_sorcerer.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/wavazona.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/73308743481.pdf
    • https://cdn.shopify.com/s/files/1/0431/0535/3885/files/sebaronidasosirexexow.pdf
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/define_psychology_of_education.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_off0000774f.bin
8c07cbb71bf6e4a383484d216c0ab8b2f391ed73bfcc5dd42101e424fa6fafe5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x774F 5588 bytes
font_01_sfnt_off00008a34.bin
f29f0c8669c12b57d45fc94859b24dc9b07c1d23ff4c42e00ed5d55a61682824		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A34 9956 bytes
font_02_sfnt_off0000ac95.bin
fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC95 16120 bytes

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