Malicious PDF — malware analysis report

Static analysis result for SHA-256 f035802be61ed27d…

MALICIOUS

PDF

39.0 KB Created: 2020-09-01 05:17:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60546bc2a11ea97d22e4baba5a9fc230 SHA-1: d42673cc01b842b277392cf9639590662e179ce7 SHA-256: f035802be61ed27d6a17b715be6766eb5c69e6cbbbe0dd4120e8ccdc65b97745
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one prominent link leading to a known malicious redirector. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=anna+and+the+apocalypse+soundtrack', suggesting a lure to download content. This link is identified as a malicious redirector, indicating the likely intent to lead the user to a malicious site. The presence of numerous other PDF links further supports the SEO link farm heuristic.

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/wix?keyword=anna+and+the+apocalypse+soundtrack
    • https://cdn.shopify.com/s/files/1/0431/7511/6959/files/mijopakex.pdf
    • https://cdn.shopify.com/s/files/1/0428/3842/5766/files/zegudadiwevomir.pdf
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/69092024199.pdf
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/critical_discourse_analysis_theory_and_interdisciplinarity.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/xetitu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9970/8821/files/vewobijop.pdf
    • https://static.usrfiles.com/ugd/52b593_333124800c844e80855b6377b8261825.pdf
    • https://static.usrfiles.com/ugd/067ecb_7b41abe3fde24e77b7dfb05cabc73752.pdf
    • https://static.usrfiles.com/ugd/3fc21f_cae1d333a6d146429c55b2a78f57dd91.pdf
    • https://static.usrfiles.com/ugd/b8c837_98fc5aa7399b4310be49e70d6ba902a8.pdf
    • https://static.usrfiles.com/ugd/f515ca_4412d9caf81b4e73b6ac3263205db1d1.pdf
    • https://static.usrfiles.com/ugd/e3c460_8e71e425d320443880a94b7f3df8232e.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_off000059d9.bin
9e787267583cd0c1bf5073c0892c37c1325a96ab4e23c29bd072951e17152ea8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D9 5316 bytes
font_01_sfnt_off00006bee.bin
9c9c82fe0b8d6b47d24c244c7d643275d36f9d5c937d8430e56662510ac41638		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEE 10396 bytes

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