Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbc54c7b3b3a0398…

MALICIOUS

PDF

40.1 KB Created: 2020-08-04 01:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c80acb1b444d76170f2f0c916eee82d SHA-1: eb7cf27c397dacdf1cae0e8ca3e71e40b75dd722 SHA-256: fbc54c7b3b3a039838d6fe70b0e9ab2558606303d0c9236c7379b699ac3053a5
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with the primary heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=plant+ecology+schulze+pdf'. This suggests the document is designed to lure users to malicious sites, potentially for phishing or malware distribution. The presence of many Shopify-hosted links, while some are benign, contributes to an SEO poisoning or link farm strategy.

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=plant+ecology+schulze+pdf
    • http://files.nuscouting.org/uploads/1/3/1/0/131070711/volisik.pdf
    • http://maraxav.kelleyclarkfineart.com/uploads/1/3/1/3/131380005/nutubazagafip.pdf
    • http://juvuforir.mrscothran.com/uploads/1/3/2/8/132815002/218db3.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/moduzibupazokemekowi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3251/8549/files/55933067027.pdf
    • https://cdn.shopify.com/s/files/1/0438/3657/1808/files/95145603108.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5497/files/71454559749.pdf
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/vojimafiziponuwe.pdf
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/68022236840.pdf
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/lidenefu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/donation_value_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/6984/0283/files/jovadaxosibopowuwof.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/pizisubirazi.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_off00005d5c.bin
653f628030cdf3b6b12f019aef269a1568aa122b1b7f71717332f9e6f18923dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5C 5472 bytes
font_01_sfnt_off00007013.bin
8deb596e9b3578c624f5bbf59bca9a28dae8d7d90116283a87f32944fd3abe60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7013 10192 bytes

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