Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddf22505b40bb43…

MALICIOUS

PDF

36.2 KB Created: 2020-08-30 17:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a96a458e165a0313d47e6437f083bc26 SHA-1: da10355595e7937e720e8cad010b9d162d3d7f0a SHA-256: eddf22505b40bb4353894d8100748f359dabc6aa50a25ffbbc35d18d8d28403f
152 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.ru', identified as a malicious redirector. The document body text, though heavily obfuscated, includes keywords related to game downloads ('forza horizon 3 download size pc'), suggesting a lure to trick users into clicking the malicious link. The presence of numerous other PDF links, many pointing to Shopify domains, indicates a link farm strategy to obscure the primary malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=forza+horizon+3+download+size+pc
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/tipos_de_arcadas_dentarias.pdf
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/81906948841.pdf
    • https://cdn.shopify.com/s/files/1/0434/5076/1377/files/xofagufes.pdf
    • https://static.usrfiles.com/ugd/b8c837_e7f2821b128948499859d5dc8850d0dc.pdf
    • https://static.usrfiles.com/ugd/565485_0faf70bb2e8046a9beb121d1044b58f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5333afdbc4d48c2979e4d8585a24a4f.pdf
    • https://static.usrfiles.com/ugd/b8c837_e2f482353dc9401d8619a086b667ae32.pdf
    • https://static.usrfiles.com/ugd/b8c837_7153104b2f4e4ed4bfcd29b37267f57e.pdf
    • https://static.usrfiles.com/ugd/b8c837_5feaceab535f40989b1c48f2273993c2.pdf
    • https://static.usrfiles.com/ugd/49be48_f28f018f47ab477a81f7ce0588a19cd6.pdf
    • https://static.usrfiles.com/ugd/b8c837_b51602c184d54518a43de45c191da1a4.pdf
    • https://static.usrfiles.com/ugd/c63dba_8b2ebb88a97e4bd7a598d0c3181520e8.pdf
    • https://static.usrfiles.com/ugd/b8c837_60b4d206c38c471dbc1e33b39cfaf50f.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_off00004fa7.bin
b1744922d7a725ca2428fbaa1919222d9926c2b4d3ee1eaa642e16d8687550f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA7 5420 bytes
font_01_sfnt_off00006227.bin
b6bc9f3de4ede140b02115e419a823cb4163a2972055fe065659de9945405fb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6227 9972 bytes

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