Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb00e07f86486c96…

MALICIOUS

PDF

42.4 KB Created: 2020-08-31 20:38:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 635b1f26ae8d23bed0f2e73eec49dfc2 SHA-1: ad3d86173521d274cd6ea0fec2e810f1b1b3f2cc SHA-256: fb00e07f86486c960655e6a4c93b5b0952770605333b18a4d8debea31f7397c6
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'fractions worksheets' and the malicious URL. This suggests a social engineering tactic to trick users into clicking the link, which then likely leads to further malicious content or exploits. The presence of multiple links, including a redirector, indicates a potential SEO poisoning or link farm strategy to distribute malware.

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.me/wix?keyword=like+and+unlike+fractions+worksheets
    • https://cdn.shopify.com/s/files/1/0459/5502/3007/files/83892450799.pdf
    • https://cdn.shopify.com/s/files/1/0432/0044/6626/files/70338058944.pdf
    • https://cdn.shopify.com/s/files/1/0433/6697/3589/files/pixokonufasifo.pdf
    • https://static.usrfiles.com/ugd/b58d21_44f4524121a6406499777cc0a9f74142.pdf
    • https://static.usrfiles.com/ugd/45e30f_dd83d77364214d9fb4228c8a702320c3.pdf
    • https://static.usrfiles.com/ugd/10a4aa_91e26d2c8c294cd3a06d6c4af01c9958.pdf
    • https://static.usrfiles.com/ugd/b8c837_04441d11a284475b909021614dadf60f.pdf
    • https://static.usrfiles.com/ugd/b8c837_acc9de464a35427b99cb71e95afca048.pdf
    • https://static.usrfiles.com/ugd/ca300b_6230f157bb27471d9eeaad49847ca227.pdf
    • https://static.usrfiles.com/ugd/b8c837_69864e2194be4bcab8c9cf96bf64d9ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_a6d66ea31c294f89a55c36c7e42c774b.pdf
    • https://static.usrfiles.com/ugd/64f9d2_9dff279261984dc5bfe0fc7332f4b6e9.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_off000068b2.bin
0881647687cfccd0f02ea4c15315f2cb0b28c8a29aa9555bbae8261f6fa571eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68B2 5208 bytes
font_01_sfnt_off00007a7d.bin
505ef4910316941df0b7df6049f80d48752bdcd27f1c46bd75922ce933ba0609		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7D 9936 bytes

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