Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5169b8ecc9778fd…

MALICIOUS

PDF

43.1 KB Created: 2020-08-10 18:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ebe345716da847f97cb82bbbb887861 SHA-1: 120eeef2f563b96ea706bf0daa75c7d1f1678602 SHA-256: d5169b8ecc9778fdd5b2027cda4289af13295187703fabb2e6f4d1d9188f2878
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL, suggesting it is the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation to increase visibility. The primary malicious URL is used to redirect users to potentially harmful content.

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=becoming+a+supple+leopard+pdf+download
    • http://files.dunphyshandguntraining.com/uploads/1/3/2/6/132681566/d354c601d.pdf
    • http://dewugejot.artwithross.com/uploads/1/3/0/7/130775350/kafizunaduluvedala.pdf
    • http://files.bellafurworks.com/uploads/1/3/1/8/131856381/duguvat.pdf
    • https://cdn.shopify.com/s/files/1/0448/6758/4162/files/85712088165.pdf
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/xumezop.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/binoluso.pdf
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/janepaz.pdf
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/jlg_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/bonefekazanim.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2977/files/john_matthew_chapman.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/fotizam.pdf
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/python_set_precision.pdf
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/11647004748.pdf
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/tigezemudevujinokit.pdf
    • https://cdn.shopify.com/s/files/1/0432/4294/6728/files/woxule.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_off00005cc0.bin
305879d010a09a1b9acdc9a89cdbb277fd76bebbc73e269a50e5426fe64d2a41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC0 5416 bytes
font_01_sfnt_off00006f14.bin
78d1df2ad5030ab09fed5da3d8196b5fceb158bd3e5f9b778c2599196163040a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F14 10208 bytes
font_02_sfnt_off00009196.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9196 4324 bytes

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