Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc96d7170640dff…

MALICIOUS

PDF

47.4 KB Created: 2020-08-07 14:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bb633699bf0484c72cbe3afeaa08d89 SHA-1: f98d25a6051e6308037f39dfcd4658cbb72de98f SHA-256: fcc96d7170640dff204ffcd81695e4dafcc7edd38521b4cd97cce204fc1fb54b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. Additionally, it features a PDF link farm with numerous external links, many hosted on Shopify, suggesting an attempt to distribute malicious content or engage in SEO manipulation for traffic. The primary malicious URL identified is https://ttraff.ru/pify?keyword=historia+de+africa+subsahariana+pdf.

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.ru/pify?keyword=historia+de+africa+subsahariana+pdf
    • http://sixesise.graceplacedancefitnessfun.com/uploads/1/3/0/8/130874359/795408.pdf
    • http://xijogu.granbyag.org/uploads/1/3/2/6/132696030/7695010.pdf
    • http://files.rycroftlabradors.com/uploads/1/3/2/6/132680813/zisojiva_gorawuzi_rodewatadiwa.pdf
    • http://files.blackdalhiaarts.com/uploads/1/3/1/0/131069869/8f28c15.pdf
    • http://nexelege.concordiavocal.com/uploads/1/3/1/4/131437462/daf8c87.pdf
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/50736070590.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9034/files/zukelopobuzivixe.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5170/files/jeruwopupibilubafi.pdf
    • https://cdn.shopify.com/s/files/1/0435/7462/4419/files/john_deere_l110_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/1167/7083/files/banking_operation_management_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/4371/5229/files/muwikomulufaxabobadepi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1321/8210/files/duxipusapuso.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4624/files/ropowobakibavosofomogi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6577/0133/files/paninaditizerebos.pdf
    • https://cdn.shopify.com/s/files/1/0433/1690/4104/files/tapugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6815/3239/files/financial_accounting_weil.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/
    • https://cdn.shopify.com/s/files/1/0433/1690/4104/files/tapu

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000771e.bin
39ecc4e356178a4afa6ae303cb1847073157702ca8272fa983423a7a01c7dcce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x771E 5312 bytes
font_01_sfnt_off0000891f.bin
0b92506654b7ff06ac26aaa88eed1971407cb864a6f293c9319d880e2baa4cad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x891F 11536 bytes

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