Malicious PDF — malware analysis report

Static analysis result for SHA-256 28871d1250e734ae…

MALICIOUS

PDF

46.2 KB Created: 2020-08-29 17:22:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99e4b95c85c0f6520368fc96e36f944f SHA-1: 5e7fffb57625d2e13eea14b5c2dbdf5b49bcbb42 SHA-256: 28871d1250e734ae7324c4140e3149b38d8a141c23d67e563c6cfa3858c67683
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a common tactic for SEO poisoning or redirecting users to malicious sites. One of the primary links, 'https://ttraff.cc/wix?keyword=alg%25C4%25B1+y%25C3%25B6netimi+ve+manip%25C3%25BClasyon+pdf+in', is flagged as a known malicious redirector. The document body, though partially corrupted, contains text related to management and manipulation, suggesting a lure to entice clicks. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=alg%25C4%25B1+y%25C3%25B6netimi+ve+manip%25C3%25BClasyon+pdf+in
    • https://static.usrfiles.com/ugd/b8c837_8b9369de28884babb502e35e5b2e1cb9.pdf
    • https://static.usrfiles.com/ugd/b8c837_3fb184f1e6c64fce87677d71e045335f.pdf
    • https://static.usrfiles.com/ugd/b8c837_6abe8af9f4144e85bca0c56a4f5df33e.pdf
    • https://static.usrfiles.com/ugd/d54300_9e7f2af06cf84f23a7270df550498d54.pdf
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/86542155757.pdf
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/8_ball_pool_hack_unlimited_coins_and_cash_apk_download.pdf
    • https://static.usrfiles.com/ugd/b8c837_c5c3eec5cda04c8e9819206fed996b30.pdf
    • https://static.usrfiles.com/ugd/b8c837_9bd4461642c64aef9dcea7d30a7b9e9e.pdf
    • https://static.usrfiles.com/ugd/b8c837_0b584c5a188d44db894cea11f2a13cd0.pdf
    • https://static.usrfiles.com/ugd/cac9e4_fd8f6fd49f9d4052990789d38a87d14d.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4549/files/harvard_referencing_generator.pdf
    • https://cdn.shopify.com/s/files/1/0450/7874/1155/files/71333375097.pdf
    • https://cdn.shopify.com/s/files/1/0454/2945/7064/files/xaxuwuzevedawugejaxiwi.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_off00007217.bin
c7663e5e634a92b01ac5915b37ae59b2d6e99f2deabce383df7b5a0a502bedc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7217 5704 bytes
font_01_sfnt_off00008506.bin
f2c256b62a32de4756c321842b59ca517b92f168953aeebe6ade9cec7412adce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8506 11896 bytes

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