Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92e34c03c44dbdf…

MALICIOUS

PDF

38.7 KB Created: 2020-08-21 17:44:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 943000ec5c4d4974aaef52a2941d23a1 SHA-1: de08fbb9a0b7731368ca820635e529b6e32c8c90 SHA-256: e92e34c03c44dbdf91d43154dcc15eb25ce82f6bdfb9ebd5f02dc0410029cfe1
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm. One of the primary URLs, 'https://ttraff.ru/pify?keyword=news+world+report', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com and other domains, suggesting a large-scale redirection scheme. No scripts were extracted, but the sheer volume of links points to a social engineering or spamming attack.

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=news+world+report
    • http://reziw.houndsmenofamerica.com/uploads/1/3/2/8/132814930/1239260.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/25912986631.pdf
    • https://cdn.shopify.com/s/files/1/0430/9513/0266/files/72454606610.pdf
    • https://cdn.shopify.com/s/files/1/0433/4184/0535/files/86360472593.pdf
    • https://cdn.shopify.com/s/files/1/0440/3780/0086/files/89888460570.pdf
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/show_the_world_lil_bossie.pdf
    • https://cdn.shopify.com/s/files/1/0433/0553/3598/files/blog_template_elementor.pdf
    • https://cdn.shopify.com/s/files/1/0440/5270/9526/files/bootstrap_3._3._5_cdn.pdf
    • https://cdn.shopify.com/s/files/1/0430/5515/3303/files/78712664129.pdf
    • https://cdn.shopify.com/s/files/1/0434/1124/3162/files/kelaxuwedixatatufilisaguv.pdf
    • https://cdn.shopify.com/s/files/1/0435/8340/6243/files/65865006868.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_off00004a10.bin
814cad4aaf350e4e113cc69e909199324872935e46b0f089e076350013723372		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A10 4440 bytes
font_01_sfnt_off00005950.bin
23a815977c25e01a396a544437eab39c223723f2511a66cc34f882518af0cfc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5950 12564 bytes
font_02_sfnt_off00007ef7.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF7 4324 bytes

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