Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5f9ecb799dd3de2…

MALICIOUS

PDF

47.4 KB Created: 2020-08-15 00:13:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fda5cf9badfc9354e905f39d2af54c3 SHA-1: 9d2b8e94b734e278c2d4d89a3964101284201fe4 SHA-256: c5f9ecb799dd3de2aba6a749dfdc1aaf26dec2221ae86f2940c742a3f89811ff
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to what appears to be a link farm hosted on Shopify. One of the primary links, however, directs to a known malicious redirector at 'ttraff.ru'. This suggests the document's purpose is to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted, and the document body is largely unreadable binary data, making it difficult to ascertain the exact lure.

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=ram+bhagwan+ke+wallpaper
    • http://files.brightenyourbeing.com/uploads/1/3/0/8/130874359/betujetezofel.pdf
    • https://cdn.shopify.com/s/files/1/0448/6758/4162/files/85712088165.pdf
    • https://cdn.shopify.com/s/files/1/0433/4691/9579/files/12808889226.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/5546896576.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/medicinal_chemistry_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/3654/0069/files/nubagi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9834/9471/files/array_push_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/mimetanokutumovuxisurezu.pdf
    • https://cdn.shopify.com/s/files/1/0446/2352/8099/files/pdf_astronomy_today.pdf
    • https://cdn.shopify.com/s/files/1/0431/8868/2915/files/6061938232.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054bd.bin
5db2410df4ffa4a4d122c2921d2dcb071b6194b311f1c64663570481230cc2c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54BD 4908 bytes
font_01_sfnt_off0000654e.bin
90e000a99f74f7d578ba06779afc0c525c90cbf53a5a2cc12fc3b4506d23faad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654E 10088 bytes
font_02_sfnt_off000087f4.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87F4 4324 bytes
font_03_sfnt_off000095f4.bin
11822c51ab15028d7c09da7d07f22cdb303e0e3d32fa340ff5cdea8a60aafcdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95F4 7916 bytes

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