Malicious PDF — malware analysis report

Static analysis result for SHA-256 33157917b01fd697…

MALICIOUS

PDF

45.6 KB Created: 2020-08-30 06:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46616026b3f1d89b67ee15749ac923ee SHA-1: 749e19d7da1b18c4dd0f9c4a3303907e80623d64 SHA-256: 33157917b01fd6971dab866739b77213bfa2d59042f35eefe9d7bc3d41f31d95
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, with a critical heuristic identifying it as a link farm. One of the primary links, 'https://ttraff.cc/wix?keyword=camp+camp+max+x+nikki', is flagged as malicious. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for phishing or to download further malware. The presence of a link farm indicates a broad distribution attempt.

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=camp+camp+max+x+nikki
    • https://cdn.shopify.com/s/files/1/0436/1990/9794/files/zasinefizijutatesad.pdf
    • https://cdn.shopify.com/s/files/1/0434/5180/9959/files/walamefi.pdf
    • https://cdn.shopify.com/s/files/1/0437/9561/1805/files/bach_bwv_140.pdf
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/brew_install_python_3._7.pdf
    • https://static.usrfiles.com/ugd/b8c837_cb569ad354af49e2ba2fd11256c59033.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ee47d256e764390bb80a568278c3939.pdf
    • https://static.usrfiles.com/ugd/b65acf_dea038f68c6949eca8957f1a6f9b958e.pdf
    • https://static.usrfiles.com/ugd/238140_3c6032c7b3a24fa2a4791bf72c16d29e.pdf
    • https://static.usrfiles.com/ugd/b8c837_579beab33da3427085d8e875e287e70e.pdf
    • https://static.usrfiles.com/ugd/23e9be_734b35cc38b44ed49e5386999beab542.pdf
    • https://static.usrfiles.com/ugd/de02f3_9c847aee5e1345628c363e63d7a5fabd.pdf
    • https://static.usrfiles.com/ugd/0c8cc8_22c8c4e620cf49ac80b64976b1f9ddfd.pdf
    • https://static.usrfiles.com/ugd/b8c837_83e4c4ebe5e248818274c52a61ffd01a.pdf
    • https://cdn.shopify.com/s/files/1/0429/2670/2755/files/nipegimog.pdf
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/because_of_you_karaoke.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golalebilafofuzugetuvi.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_off00007642.bin
d5056b6f88f710d8b285f8849433206bd139f0b9d466b1a83160381a2b439a97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7642 4808 bytes
font_01_sfnt_off00008690.bin
b81da98e45e4f3d635caf82357141b83f3e9dac9b695d3ce4f0b94cac3414f1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8690 10120 bytes

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