Malicious PDF — malware analysis report

Static analysis result for SHA-256 55964799bb719fc4…

MALICIOUS

PDF

34.8 KB Created: 2020-09-02 05:23:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06a8fb46a883aa3c63a4858358e88816 SHA-1: af6a882332e76a568021dea8b7e7447f36fdbb81 SHA-256: 55964799bb719fc436c0e8ac2d22643d8337df56f1cad22a99798d06f51c8bfc
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.me/wix?keyword=name+photo+on+birthday+cake+app', is flagged as a malicious redirector. The presence of this malicious link, combined with the ML classifier's high confidence score, indicates the document's primary purpose is to lure users to malicious sites. No scripts were extracted, and the document body is heavily obfuscated.

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.me/wix?keyword=name+photo+on+birthday+cake+app
    • https://static.usrfiles.com/ugd/ee4a13_a9d326018301417cb4e1349854c1c9b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f8ed2b1abe54ebb89ad6e7405b5138e.pdf
    • https://static.usrfiles.com/ugd/30e015_50ff5c50eaff4a89af71b6a6b2812458.pdf
    • https://static.usrfiles.com/ugd/a474dd_182b58ff2b3b401a8e85a12e236bb86e.pdf
    • https://static.usrfiles.com/ugd/f96b02_81a1033cb1ce47d5be130756eb7d6fac.pdf
    • https://static.usrfiles.com/ugd/2ddd39_0f71068a93ff4ab29f94d42b9aeabecc.pdf
    • https://cdn.shopify.com/s/files/1/0435/5427/5479/files/adana_agreement_1998.pdf
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/97108884403.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/94000929718.pdf
    • https://cdn.shopify.com/s/files/1/0431/1760/9122/files/81703333446.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/hbr_guide_to_project_management_download.pdf
    • https://static.usrfiles.com/ugd/ea9bdf_bddad4ef55b444dc805cd136b04562ac.pdf
    • https://static.usrfiles.com/ugd/e33828_749b6b99a88f42c1af4bb75bc5da012f.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_off00004c95.bin
7a178239025071af577c505589df64da472faaa7a6f4a3f38c701d65c70c2e2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C95 5380 bytes
font_01_sfnt_off00005eb9.bin
3b29ab21d7bbe7464c3612bd4d502605b3dca9bf39a20402add008bbc8fc8264		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB9 9432 bytes

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