Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5b943c364559832…

MALICIOUS

PDF

37.4 KB Created: 2020-09-07 17:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56c248457fa2fde9edd38d79d4f22b07 SHA-1: 20225aadee2bdd7d62fd132e6c2456c455ec02a4 SHA-256: b5b943c3645598322ab674ea09bc207686226ace9729d207f4ee0223c3fdbe98
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'avery bookmark template mac'. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a malicious site or download further payloads. The file's structure and the presence of a link farm suggest a phishing or social engineering attack.

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=avery+bookmark+template+mac
    • https://static.usrfiles.com/ugd/cece23_e3d2b0950c4e42adb18c69906d7de6c2.pdf
    • https://static.usrfiles.com/ugd/469aea_adc1752ab2464110a7eb69b8f7fba8c5.pdf
    • https://static.usrfiles.com/ugd/1a89c8_e532c1eec5e64c798e3a809ebf884739.pdf
    • https://static.usrfiles.com/ugd/8cbfce_8ad6fb15bfbf413ab6d885931dc40c85.pdf
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/fazasiragivijesu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1688/7192/files/distributed_autonomous_robotic_systems.pdf
    • https://cdn.shopify.com/s/files/1/0435/2914/2426/files/south_movie_new_mkv.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_851e2f5230ad4a7f8f84556b801574f3.pdf
    • https://static.usrfiles.com/ugd/5438e3_ad65e360ce2d4e0ba19dafc5895103e0.pdf
    • https://static.usrfiles.com/ugd/3fc21f_306864ebac324137b8b562fde24eb1b8.pdf
    • https://static.usrfiles.com/ugd/b8c837_3583a24750774a0a90537facee6b04d2.pdf
    • https://static.usrfiles.com/ugd/7d21c0_0ad8ad21b6f74dcdb307c9876267346d.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_off00005479.bin
65548e3422cc4c865ff2218a78affddbd305740ffd758a8f0065d908078c357f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5479 5256 bytes
font_01_sfnt_off00006653.bin
b63a2f04fc8c6c070eea92a77f5adfd298b050bce31c6ce35789fcd6b205c3a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 10208 bytes

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