Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6989016cf0ead4…

MALICIOUS

PDF

59.2 KB Created: 2020-08-30 13:14:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c10a0240e096f3b2c8665fd9d082fc6 SHA-1: 17b16a3e72dd5923414dd76107f6aa2c757e66e0 SHA-256: eb6989016cf0ead41877ee0b5bfaefc0c5ff6fbcfa4693d76a51dd494ec2f965
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, the PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger scheme to generate traffic through numerous links. The embedded URL https://ttraff.cc/wix?keyword=nebraska+pyramid+weight+lifting+chart is the primary indicator of malicious intent, likely serving as a lure for further malicious activity.

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=nebraska+pyramid+weight+lifting+chart
    • https://static.usrfiles.com/ugd/b8c837_9a3ef07e97904202a80aa852f99cc785.pdf
    • https://static.usrfiles.com/ugd/b8c837_b88d3958e0544203acd54e37eeedbea4.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c9b3ba46b3143a5a3cb622ac9fb4cc7.pdf
    • https://static.usrfiles.com/ugd/097bd5_a0a03860965a4100b057d1789633b9c0.pdf
    • https://static.usrfiles.com/ugd/b8c837_0c071499630f4da8a037e399882d5f86.pdf
    • https://static.usrfiles.com/ugd/314c35_f19e3dfd06414212804d33a019c7e6cc.pdf
    • https://static.usrfiles.com/ugd/80c1db_a90a31b8979c4a7a9bd61995762a0f26.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_eaf929e161704830a620b85b5a4a0a78.pdf
    • https://static.usrfiles.com/ugd/b77b08_a164f152b4bc4274a1595e5fec715d20.pdf
    • https://static.usrfiles.com/ugd/4826f5_973e2efe03c7419d84ec92a0a6d91b10.pdf
    • https://static.usrfiles.com/ugd/b8c837_c51d1268b52a4ac887731ced405e97ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_b5d4a7022c8449feb37ebda458bdbc95.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_off0000998b.bin
b8465eec233b6c3e9fd358127c3d041af1acb704ef102248ecf0668fd4ed9004		 pdf-font-stream PDF embedded font (sfnt) at offset 0x998B 5616 bytes
font_01_sfnt_off0000ac95.bin
f6635a9aac9972d8efa0a52ea4cf6fefaf133a002099e7a73003e52513a2d88e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC95 10820 bytes
font_02_sfnt_off0000d17e.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD17E 4324 bytes

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