Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9644bdfab682ff4…

MALICIOUS

PDF

34.6 KB Created: 2020-09-02 23:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0454543339c26e9880e069e1e426901d SHA-1: 1a338270772c66dc2881dcb71bb0db1558d53bd1 SHA-256: a9644bdfab682ff4ff0a686b393b01bf8c749a9845cd5ef5ef36a6b864da1353
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, which is a common technique for delivering malware or phishing pages. The heuristic firings indicate the PDF is designed as a link farm, likely to obscure the final malicious destination. The embedded URL 'https://ttraff.link/wix?keyword=lagu+beautiful+in+white+matt+johnson' is the primary indicator of malicious intent, aiming to redirect the user to a harmful site.

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.link/wix?keyword=lagu+beautiful+in+white+matt+johnson
    • https://static.usrfiles.com/ugd/9f6a24_77a70f30b9974900a1666efffc13e40b.pdf
    • https://static.usrfiles.com/ugd/6812d7_df6633cb7cb247058dc55296eb0d70f3.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca2df2f0f808489db5c19d4d4ae21ff4.pdf
    • https://static.usrfiles.com/ugd/0d089b_3bb3235b87f942b0818fb6d877bef3a6.pdf
    • https://cdn.shopify.com/s/files/1/0433/6726/8517/files/24856707301.pdf
    • https://static.usrfiles.com/ugd/865d50_3db9adaff4fc44ae9691adcbfacd6b00.pdf
    • https://static.usrfiles.com/ugd/b916f4_f71d21f01a9c48f2a04d186679cbd0c3.pdf
    • https://static.usrfiles.com/ugd/93971e_3474d696ff5f4f23a76f8f723e618588.pdf
    • https://static.usrfiles.com/ugd/ca32a8_740b78f6e6b7486998edb05023b04736.pdf
    • https://static.usrfiles.com/ugd/957c7b_470655bb1cf246788f3cd3a9208efcca.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_off00004b11.bin
a815b218333d13ecdb9a47748d62e11b91488532cc405b3c6ebb837673b854d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B11 5336 bytes
font_01_sfnt_off00005d2d.bin
2f15f2e3c49805cb185db223a7871f91e4de35e7d6499a141e53d6924128750c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2D 9708 bytes