Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfbf3facaf87ce03…

MALICIOUS

PDF

36.2 KB Created: 2020-08-16 21:30:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7933d44fe069297f4ccb22670d8fe738 SHA-1: 6fe86e4e866c39b8eafe53797f87c09dd940d963 SHA-256: dfbf3facaf87ce033246d6561ad6c64354b6656b6f3a5fa7b3fc5965cef0da63
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.com/pify?keyword=watlow+aspyre+manual'. This indicates the document is designed to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious redirector. No scripts were extracted from this sample.

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.com/pify?keyword=watlow+aspyre+manual
    • http://files.supernaturaltraveler.com/uploads/1/3/2/7/132712011/jutib_geriv_jixobokole_titajigesibef.pdf
    • https://cdn.shopify.com/s/files/1/0437/4816/3733/files/20527387053.pdf
    • https://cdn.shopify.com/s/files/1/0444/3389/9686/files/bugzilla_tool_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/75006907830.pdf
    • https://cdn.shopify.com/s/files/1/0431/4516/7008/files/kiran_publication_bank_po_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/4016/1435/files/agnes_martin_lugand_libros.pdf
    • https://cdn.shopify.com/s/files/1/0440/4012/6614/files/63269432200.pdf
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/zinigupizomon.pdf
    • https://cdn.shopify.com/s/files/1/0430/3201/9097/files/23681527115.pdf
    • https://cdn.shopify.com/s/files/1/0434/0819/5751/files/escala_cromatica_teclado.pdf
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/84527354285.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_off00004dcf.bin
596021949209a5ac9547d70fd3f70b9e4cde0f1432728a2cd3b4acad5272555c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DCF 5172 bytes
font_01_sfnt_off00005f6b.bin
5247866988c6c23d736265fb3425d3413b4ae9d82f53f852410cd1483027b579		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6B 10488 bytes

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