Malicious PDF — malware analysis report

Static analysis result for SHA-256 40f9b4b67aa60ece…

MALICIOUS

PDF

41.6 KB Created: 2020-08-31 23:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53d48a155f5c7a0def41f896739112d6 SHA-1: 18ba84652e57a3d8cca4843a569284027197a313 SHA-256: 40f9b4b67aa60ecebaa4b0b84e81bfdfb513cb4dfc4ee1093d30a0285b280082
128 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, with a significant portion pointing to a link farm hosted on static.usrfiles.com. One critical heuristic identified a link to a known malicious redirector at ttraff.cc. The document body, though heavily obfuscated, contains text related to 'perforated metal sheet' and urgency lures, suggesting a phishing or scam attempt to drive traffic to malicious infrastructure.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=perforated+metal+sheet
    • https://static.usrfiles.com/ugd/b8c837_f2b9532331dc4e2fb6faa92178c372c5.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_81081e74c634400894e85f734ff8b53a.pdf
    • https://static.usrfiles.com/ugd/b7082a_a5e0e878cf004667ade8e57b4563e093.pdf
    • https://static.usrfiles.com/ugd/76156b_678e9ecbd51a49848cd98c32be1842e8.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3453/files/music_video_treatment.pdf
    • https://static.usrfiles.com/ugd/b8c837_5641c77eac2545e785ae90322ad21e0c.pdf
    • https://static.usrfiles.com/ugd/2f8cea_6f4e7d153d8d44e78eb13814d2fd3c38.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c5f3da769b44a55b7a000acd9b8f06c.pdf
    • https://static.usrfiles.com/ugd/b8c837_0794ce55c54c4df284fb834ba46be5b4.pdf
    • https://static.usrfiles.com/ugd/89363e_83c6956cabd1426fad8b6c47c72a3408.pdf
    • https://static.usrfiles.com/ugd/b8c837_56c69a133a9e4447b6721566e63020f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_e1170fe5bb9b42beaf18c4ff951fc045.pdf
    • https://static.usrfiles.com/ugd/fedf23_15c667eed85547229ffd2aa243d4f278.pdf
    • https://static.usrfiles.com/ugd/b914b5_4f4d25b3a74644eab347ab8decef6ff8.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_off000063e5.bin
2dd7fb660a72293d64d1455a545d3a83e207cfdc02a2f3ee3b1b37f3476d67cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E5 5148 bytes
font_01_sfnt_off0000753b.bin
a779c70334907b6b9f7eabc1e695f8970ec9294904543e3104dd8dd532382652		 pdf-font-stream PDF embedded font (sfnt) at offset 0x753B 10700 bytes

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