Malicious PDF — malware analysis report

Static analysis result for SHA-256 589fd640552ac9ec…

MALICIOUS

PDF

45.1 KB Created: 2020-08-18 23:32:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe20ee2f47fb8c19c8779d47c2e66663 SHA-1: 0e0fcc8093a6a8dd0027c9ab1ca90545aa74d0a1 SHA-256: 589fd640552ac9ec1f97eb70ffc6b78c499ccaeeb915d11deffcb608e32825ea
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, a common technique for distributing malicious content or redirecting users to phishing sites. One critical heuristic firing indicates a malicious redirector link to 'ttraff.com', suggesting the document is designed to lead users to harmful destinations. The presence of numerous other links, including those to Shopify, further supports the link farm characteristic.

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=access+bars+32+points+pdf
    • http://nulok.menashastrong.com/uploads/1/3/0/8/130814328/7438493.pdf
    • https://cdn.shopify.com/s/files/1/0430/6095/3249/files/51018661316.pdf
    • https://cdn.shopify.com/s/files/1/0451/9510/0311/files/57298714230.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/calcitonina_y_parathormona.pdf
    • https://cdn.shopify.com/s/files/1/0440/8541/1990/files/appendix_a_form_echs.pdf
    • https://cdn.shopify.com/s/files/1/0435/2642/2687/files/fupezebat.pdf
    • https://cdn.shopify.com/s/files/1/0444/3917/5335/files/kewuvixuwasitoga.pdf
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/losavedew.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/vurudu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8456/2086/files/72769730410.pdf
    • https://cdn.shopify.com/s/files/1/0451/7367/0037/files/piano_scales_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0447/8972/7381/files/mastering_astronomy_answers_chapter_8.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1469/files/fovik.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_off00006311.bin
bbc70cfe561c11bb70b4396aa1d5eb01f8417f04b2027571f71df4d69b6c39e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6311 5332 bytes
font_01_sfnt_off00007524.bin
6c79eb9d21aa65748bef238cab54a27862a8ceba6a099a0fe04ee5a757488233		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7524 10212 bytes
font_02_sfnt_off00009817.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9817 4324 bytes

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