Malicious PDF — malware analysis report

Static analysis result for SHA-256 b314487664109fe4…

MALICIOUS

PDF

40.9 KB Created: 2020-09-14 00:47:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40a37ff50c1949f279cbd6d23da685fe SHA-1: 15cb8488bbe78f52a3c8128c9db4d09a020c0f9d SHA-256: b314487664109fe419acf3eda3f4db0c948be9418160723fc6d96b68084aeffe
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure. Specifically, it links to `https://ttraff.link/pify?keyword=savannah+library+tn`, which is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to lure users to this 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.link/pify?keyword=savannah+library+tn
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/computer_networking_cables_and_connectors.pdf
    • https://cdn.shopify.com/s/files/1/0440/1725/4565/files/luxajituvawe.pdf
    • https://cdn.shopify.com/s/files/1/0435/9094/2888/files/call_of_duty_ghosts_cheats_codes.pdf
    • https://static.usrfiles.com/ugd/e56fe2_5b0e29491c0e4affb0d8c18ef58560ba.pdf
    • https://static.usrfiles.com/ugd/55cc32_5a2deab549a74e4192d889e9acbd61bd.pdf
    • https://static.usrfiles.com/ugd/d32f78_a113fc81aa0b48cfac0920f9d1bdd22b.pdf
    • https://static.usrfiles.com/ugd/b42fd6_ced054fe599d42e0a5560ddb8d69c6f6.pdf
    • https://static.usrfiles.com/ugd/3aee12_3d6dd0e9f4304a358a5c87371ebe7bf9.pdf
    • https://static.usrfiles.com/ugd/e02969_ca953497e6c345818a6c741363feb976.pdf
    • https://static.usrfiles.com/ugd/19ce5d_8154576fdc444b0a9a18a45a1a1f7e1e.pdf
    • https://static.usrfiles.com/ugd/97368a_a7eda392ff264cb4b2d89609a20b2c68.pdf
    • https://cdn.shopify.com/s/files/1/0440/6280/2070/files/74199122007.pdf
    • https://cdn.shopify.com/s/files/1/0436/9825/8088/files/download_snow_leopard_10._6._8_iso.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_off000059b7.bin
235c1e50d3ced391c7dd698b742040ace99835c9634604585266ba24df539a77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59B7 5000 bytes
font_01_sfnt_off00006ac0.bin
22aa7f7ef54046c3a1a6a5f68ec4c5771b8eab2b9c77ac058642ff34039b3bc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC0 13656 bytes

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