Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f4d32a8bb79bf6e…

MALICIOUS

PDF

50.5 KB Created: 2020-08-29 06:42:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95993df216c17dda7c3fee219e7e814a SHA-1: a0fabb86f68b71b27240c8460230354f70ec3ac3 SHA-256: 8f4d32a8bb79bf6ee2cc839969f177040df82dcea63b9effcb16f580d82d7576
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=denklem+kurma+problemleri+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one leading to a Shopify domain. The document body, though heavily obfuscated, contains the malicious redirector URL and other PDF links, suggesting a lure to external malicious content.

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=denklem+kurma+problemleri+pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/induction_proof_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/8967/3883/files/29565654234.pdf
    • https://cdn.shopify.com/s/files/1/0431/6934/9794/files/jotenepijogula.pdf
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/clash_of_champions_grades_bleacher_report.pdf
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/25791142058.pdf
    • https://static.usrfiles.com/ugd/b8c837_2830e2995856465780ee103a7b19d419.pdf
    • https://static.usrfiles.com/ugd/b8c837_2cef71c938cc471db271b92371283acb.pdf
    • https://static.usrfiles.com/ugd/b8c837_29a090987f744b1386a6e3cbb6ec773c.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6856b0e885b410c8240b9dfc9d2d567.pdf
    • https://static.usrfiles.com/ugd/b8c837_5a26b9393fed4c54a66499e581cfbdc1.pdf
    • https://static.usrfiles.com/ugd/b8c837_3e2cdcd9bc72422b8a6e8b2fdd56da52.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ee74ab9be734382adc4f1d9a70bd5dd.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006404.bin
5cb055a01523191ea8afee71d72e18fb2fc4f28640d142622521625e3ebe2950		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6404 5212 bytes
font_01_sfnt_off0000759a.bin
b28d71db2edab8fa40ab6d827e4a26562076a24e0f839197ef0876b33ba60c88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x759A 2960 bytes
font_02_sfnt_off0000815a.bin
36b6e3f5804f32b6e8cc7a4d5c00a2471dfb4206bf3ab794b66906428786eea1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x815A 11608 bytes
font_03_sfnt_off0000a588.bin
9c47a8ecf7103172530608de19fa11afb8a035ab51042e9cb8c6809f09ebb189		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA588 16344 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.