Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd308e65225a7b9a…

MALICIOUS

PDF

47.2 KB Created: 2020-08-25 00:26:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 456d2fe515ac1866f69c92d6911272b3 SHA-1: 09b9c4b6176cb2aef3671ec0c61b9bb80a4b296f SHA-256: dd308e65225a7b9af1aca702f885a0e3dbaf3ed0d0babe2a5533a4510713834c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm and another identifying a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=is+accentual+verse+form+or+structure, which likely serves to obfuscate the true destination of the attack. The document body itself is largely unreadable, but the presence of numerous links suggests a phishing or redirection 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/pify?keyword=is+accentual+verse+form+or+structure
    • http://files.yourlocalhandyman.org/uploads/1/3/2/6/132695636/1666867.pdf
    • http://files.alessiakernot.com/uploads/1/3/1/4/131454355/lizulizuratovi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4259/5239/files/99083217791.pdf
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/52167176945.pdf
    • https://cdn.shopify.com/s/files/1/0440/0129/6534/files/free_photography_templates_for_blogger.pdf
    • https://cdn.shopify.com/s/files/1/0448/3714/2690/files/cell_division_mitosis_and_meiosis_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0464/7514/9480/files/86911103070.pdf
    • https://cdn.shopify.com/s/files/1/0434/7238/8246/files/fevikidabilixamejurexew.pdf
    • https://cdn.shopify.com/s/files/1/0432/0916/2907/files/pejumomomafaxopun.pdf
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/53269582467.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4701/files/24967805348.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/sideveturosetel.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_off00006778.bin
59486aec5582864caf959b9060b5418f6386acd7349529daab48d5f5ea3c205b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6778 5024 bytes
font_01_sfnt_off0000786e.bin
590110b6c54ec7722be9519e3b4fab33163af57ec93c3631e196529607ae7313		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786E 10084 bytes
font_02_sfnt_off00009b17.bin
366b2a3ed9b44e620159a8175e6f9935b0189d17b94b4d5ccfd5980b0b155f3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B17 16112 bytes

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