Malicious PDF — malware analysis report

Static analysis result for SHA-256 c47b630444b96d65…

MALICIOUS

PDF

59.8 KB Created: 2020-08-21 13:21:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57fb0fde31f428398da8d35252977bae SHA-1: f6d28a834fd150ad14745e16154d2c1df0e54eca SHA-256: c47b630444b96d65a62740b83ca11e8ba6a8e32b80631d4e09d9d6b8bdb6681d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure (ttraff.cc). Another heuristic flagged the document as a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The presence of numerous links, including one leading to a malicious redirector, indicates a likely attempt to direct users to harmful websites.

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/pify?keyword=catalytic+reforming+unit+%25E4%25B8%25AD%25E6%2596%2587
    • http://files.oaklandchristianchurch.org/uploads/1/3/0/7/130776483/wozazonekuki.pdf
    • http://zinifaru.omalleyfoundation.com/uploads/1/3/2/8/132814343/pekiza.pdf
    • http://files.theleveledstore.com/uploads/1/3/0/8/130815014/6915578.pdf
    • https://cdn.shopify.com/s/files/1/0433/6192/7318/files/wovupapo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/permutation_and_combination_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/43883625656.pdf
    • https://cdn.shopify.com/s/files/1/0436/3934/1216/files/math_worksheets_grade_7.pdf
    • https://cdn.shopify.com/s/files/1/0441/2735/5032/files/cd40175be_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/0008/6180/files/zupepotel.pdf
    • https://cdn.shopify.com/s/files/1/0438/9617/6795/files/13299711721.pdf
    • https://cdn.shopify.com/s/files/1/0434/0108/5082/files/tulifurazan.pdf
    • https://cdn.shopify.com/s/files/1/0433/6045/2760/files/91481553253.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009200.bin
2743ec1a3a2763be17ad8255dc27bdaf6439aac6a18c2cafb40f78e09a377362		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9200 3876 bytes
font_01_sfnt_off00009f65.bin
c0baa96315eab33a8c9e081962bcf29dd480d0975e9b196fc52905ae9aa82ccf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F65 3112 bytes
font_02_sfnt_off0000aa6a.bin
5e962967921bd4e0dc2b36eb85bd06b18be461060a8f597d676c4245cf0bc9b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA6A 5028 bytes
font_03_sfnt_off0000bb7a.bin
4b541e7c35617e2094af9396fdb9c0513a35a24fc191ad7466f687148feb7917		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB7A 10656 bytes

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