Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad7cbd32c822d2c1…

MALICIOUS

PDF

239.0 KB Created: 2020-08-20 04:28:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e2a82483fc945808228347e8e1e8f89 SHA-1: 3bdc998b3afa1d579e910b370c57d99024561050 SHA-256: ad7cbd32c822d2c1603030e63546e7ec1cb770bdf4be74454d663f645b53baa2
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating a malicious redirector link. The embedded URL, https://ttraff.com/pify?keyword=idsa+guidelines+clostridium+difficile+2018, is the primary indicator of malicious intent. This suggests the document is designed to lure users to a compromised or malicious website.

Heuristics 2

  • 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.
  • 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.com/pify?keyword=idsa+guidelines+clostridium+difficile+2018
    • http://files.cmbuilders.org/uploads/1/3/0/7/130740065/3333488.pdf
    • https://cdn.shopify.com/s/files/1/0434/8405/3669/files/87995930169.pdf
    • https://cdn.shopify.com/s/files/1/0427/4877/2508/files/52024686226.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/saviturefako.pdf
    • https://cdn.shopify.com/s/files/1/0438/0835/8561/files/yah_reserved_fandango.pdf
    • https://cdn.shopify.com/s/files/1/0429/2562/1404/files/wonderlic_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/76417066136.pdf
    • https://cdn.shopify.com/s/files/1/0428/9354/1535/files/bank_po_preparation_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/analog_and_digital_communication_interview_questions_and_answers_filetype.pdf
    • https://cdn.shopify.com/s/files/1/0438/8562/5499/files/aromaterapia_y_aceites_esenciales.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/product_disclaimer_template_free.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_off00035285.bin
0dce3d4220b6db43b15bdf3f1acff058c32f015966f121873ae0d76b5e25a17f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35285 5796 bytes
font_01_sfnt_off0003662e.bin
5ffb4071ba7d88c208a269851f2cd87a303ef3ab5da834cec65dcbf40f8fc3df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3662E 15540 bytes
font_02_sfnt_off00039702.bin
6c90aeed2532b98c0a186b08cf03f887eef891cfcf73d45db200a88e759eb4dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39702 16488 bytes

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