Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce265197ceb6971…

MALICIOUS

PDF

35.1 KB Created: 2020-08-28 09:41:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 286d975cacbc7e69e6b1605d12230712 SHA-1: b0ae20a09cae13f4afb2dbe11d4f16fe061362c6 SHA-256: 7ce265197ceb6971bd7dd95ca4c8e83a6cd1a9bb79a178932a866c3d6853c5a8
130 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. One of the primary links, 'https://ttraff.ru/pify?keyword=bodyboss+ultimate+body+fitness+worko', is flagged as malicious. The document body also contains a call-to-action phrase, suggesting a lure to click the link. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve SEO for the malicious redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=bodyboss+ultimate+body+fitness+worko
    • http://jewaraso.d-aleksandar.com/uploads/1/3/1/8/131856072/7fe695da2346.pdf
    • https://cdn.shopify.com/s/files/1/0434/3388/5846/files/tejegukaleguzixefuram.pdf
    • https://cdn.shopify.com/s/files/1/0432/5674/2046/files/9145560405.pdf
    • https://cdn.shopify.com/s/files/1/0437/2935/4903/files/vosakizivol.pdf
    • https://cdn.shopify.com/s/files/1/0431/9179/5873/files/batman_the_killing_joke_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/2155/7147/files/gevigeribexovura.pdf
    • https://cdn.shopify.com/s/files/1/0429/5622/6716/files/auto_click_for_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/79406480019.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2550/files/97065210301.pdf
    • https://cdn.shopify.com/s/files/1/0439/3356/5096/files/dituduxilelu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/71411814739.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_off00004a45.bin
79ba3f7ed7113d12cbbc3a8a8d152f2a68912d7e948e5436fa9ba3feee1327f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A45 5500 bytes
font_01_sfnt_off00005cf8.bin
d9fee87d488eb9b01c6f639e0ae1ea5546b881e58212cc7b524d9e9e1cfb8253		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF8 10232 bytes

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