Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0a4c78fb1ee7e95…

MALICIOUS

PDF

49.2 KB Created: 2020-09-01 02:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 501327b5f6b9a0378e3115f2b846d758 SHA-1: b7eff2fc2bf3e8d97f55ecd74259c6b57781d237 SHA-256: b0a4c78fb1ee7e95b8e48c8f7d4c086ece565e3f434d5718523270f3af7b5407
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the redirection. This suggests a phishing or malicious content delivery attempt. No scripts were extracted, limiting further analysis of the payload.

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=catan+cities+and+knights+rules+pdf
    • https://cdn.shopify.com/s/files/1/0440/8606/7352/files/50678468796.pdf
    • https://cdn.shopify.com/s/files/1/0436/8157/9161/files/51832299505.pdf
    • https://cdn.shopify.com/s/files/1/0434/4361/7959/files/51426529934.pdf
    • https://cdn.shopify.com/s/files/1/0435/6984/0283/files/8048330458.pdf
    • https://static.usrfiles.com/ugd/bfbc46_f2418cb71cb74fc58250391bc5ea2d9d.pdf
    • https://static.usrfiles.com/ugd/756799_31be8caebe0b43b8894fdb325a6eb532.pdf
    • https://static.usrfiles.com/ugd/f4de5e_c21956a078a54fa59a26c0896733ba51.pdf
    • https://static.usrfiles.com/ugd/33a2e4_d909e54dfa6645ea9aeaadab7cf93f5e.pdf
    • https://static.usrfiles.com/ugd/8acad3_9f182e0f03e642c6b3c9609e5c75de4c.pdf
    • https://static.usrfiles.com/ugd/726ec9_4f047777acc94cdb85482cc26b50aa2e.pdf
    • https://static.usrfiles.com/ugd/bfbc46_acdc98684a374683923aa0e9e9b2fe61.pdf
    • https://static.usrfiles.com/ugd/9374a7_c2b95650a101432cb5f72e4a95090a7d.pdf
    • https://static.usrfiles.com/ugd/e2c250_c7fe3361c9024fdd9cb5194b4e83ccb3.pdf
    • https://static.usrfiles.com/ugd/b8c837_54acd1b4359e40bab030e4b644c34145.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075ad.bin
54c1e30ca232df385db2cfc49b675669bd167bf4351341b45a126c9b960fe938		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75AD 5276 bytes
font_01_sfnt_off00008799.bin
fd1ff099041083b5bf395ba120f2b6aa5f0a1cd97a0cb51a968b2e85e87b472d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8799 10200 bytes
font_02_sfnt_off0000a9c1.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9C1 4324 bytes

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