Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ae6cc29e95e111…

MALICIOUS

PDF

42.7 KB Created: 2020-09-04 00:56:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7aefaf6f5a089a1d1589fd8f545f9070 SHA-1: f97a38aafc66e3bcef3f64ba16817e5b7301bef7 SHA-256: e2ae6cc29e95e1116fd9ca5bd45ccc454f0361d75e7672e2f74739ce987d80e3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.club/wix?keyword=css+grid-+template-+columns+auto, which is likely used to direct users to a malicious site. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a link farm or redirection tactic. No scripts were extracted, but the heuristic firings strongly indicate a malicious redirection attempt.

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.club/wix?keyword=css+grid-+template-+columns+auto
    • https://static.usrfiles.com/ugd/3fc21f_7ae97df587d946b1994bb6cb4aafffcd.pdf
    • https://static.usrfiles.com/ugd/0e2875_ab33efd64fc041329e532e1a58efa64e.pdf
    • https://static.usrfiles.com/ugd/64d889_afb57e856f4d42b19bbdc6d2bf097657.pdf
    • https://static.usrfiles.com/ugd/50988c_5418d4d4558748009e3032d84438fa29.pdf
    • https://static.usrfiles.com/ugd/b8c837_f451828e6a5e4f59b1a49fcadbce9e02.pdf
    • https://cdn.shopify.com/s/files/1/0436/7518/9401/files/zadimuvowadaposataxetu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/sonemufuxopifa.pdf
    • https://cdn.shopify.com/s/files/1/0436/5074/4478/files/milokisovi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0958/8897/files/tuxidovifubafito.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/1907337918.pdf
    • https://cdn.shopify.com/s/files/1/0434/8854/2872/files/xebojuluvoxuwo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/purojotitevajagaze.pdf
    • https://cdn.shopify.com/s/files/1/0434/2474/3591/files/tejel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/lujake.pdf
    • https://static.usrfiles.com/ugd/738632_96405c4a856f4e139d13efb72a02e142.pdf
    • https://static.usrfiles.com/ugd/4dded2_d74a2d076e644870ad8a464334dc61b9.pdf
    • https://static.usrfiles.com/ugd/b8c837_e2bbc7df612f44b98b4b924f4a1a7a61.pdf
    • https://static.usrfiles.com/ugd/2ca09c_19d21876b33645a598d33efc35ab9181.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_off00006858.bin
ffcc496cfc387da1ad2a339f0ec9478c237d1317bfe9c014d0d001a9fe673f92
pdf-font-stream PDF embedded font (sfnt) at offset 0x6858 5328 bytes
font_01_sfnt_off00007a62.bin
5b34f98c84cf52f7403347457b2aa00ddadc2548c7ec6bfb79d721f2fefc560b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A62 10364 bytes