Malicious PDF — malware analysis report

Static analysis result for SHA-256 368b59a1a5adbeca…

MALICIOUS

PDF

48.1 KB Created: 2020-09-08 20:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f5254f5dd724702c9e447665c193b12 SHA-1: 39e9f88f66141c7b6dc44c669cb9497ddbb3eceb SHA-256: 368b59a1a5adbecadea65ca775a0cef1bc9b4ce97f84e0298e623e8519988bae
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=2008+charger+srt8+performance', which is flagged as a malicious redirector. Additionally, a heuristic indicates a 'Callback phishing phone lure', suggesting the document is designed to trick the user into interacting with a link or potentially a phone number for malicious purposes. The presence of a link farm further supports the malicious intent.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.me/wix?keyword=2008+charger+srt8+performance
    • https://static.usrfiles.com/ugd/6dcf04_ff2ea47197a54390912f618ca8541064.pdf
    • https://static.usrfiles.com/ugd/80c1db_018c0082f01048bcb9d5aee882dd3dcd.pdf
    • https://static.usrfiles.com/ugd/cec570_08b69e2c3fd549e6921d7ab7a6762671.pdf
    • https://static.usrfiles.com/ugd/b8c837_013be2fdc21c4e9b97afb638a87075e5.pdf
    • https://static.usrfiles.com/ugd/f103bb_a92a0d5c016f4271a14dc18307a1bfc8.pdf
    • https://cdn.shopify.com/s/files/1/0440/8393/7432/files/bearing_number_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/6590/1210/files/tenavew.pdf
    • https://cdn.shopify.com/s/files/1/0432/1624/0807/files/3631451524.pdf
    • https://cdn.shopify.com/s/files/1/0433/8574/9654/files/operations_management_mcgraw_hill.pdf
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/araldite_2014_2_safety_data_sheet.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_off00007bb1.bin
3dea3679b83789fb040a34594bec956be5a4b99c3375708997882ac071afa918		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 5768 bytes
font_01_sfnt_off00008f2e.bin
5e31a2904d2922034c3f18d39fdc3e3c8b7a5581fbacff963800923b47b75a43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F2E 10860 bytes

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