Malicious PDF — malware analysis report

Static analysis result for SHA-256 a29ac34573fe5968…

MALICIOUS

PDF

49.4 KB Created: 2020-08-31 22:19:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65f6c66164a69d0bad511c3129bf12a2 SHA-1: 720ff0ab6e6f38e8c701601ce466d93777a1bd88 SHA-256: a29ac34573fe596897d4028fd402e280ba684dad561b84ac7ea7cd10619757ff
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.club/pify?keyword=burner+phone+number+apk', is flagged as malicious and likely serves as a redirector to further malicious content. The document body, though heavily obfuscated, contains references to 'burner phone number apk' and the malicious URL, suggesting a lure for potentially illicit applications or services.

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/pify?keyword=burner+phone+number+apk
    • https://static.usrfiles.com/ugd/f96b02_49379522ab914fd084909c1eee53ca5b.pdf
    • https://static.usrfiles.com/ugd/b8c837_45596a660d2d478ab33f6b427a3f0e8f.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bf7263bb05a4677a9a3ee81b261f641.pdf
    • https://static.usrfiles.com/ugd/5af86b_1653ec0c85c44162aca9551d19c5d7bf.pdf
    • https://cdn.shopify.com/s/files/1/0440/2295/6197/files/tugazotugigen.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/52293520835.pdf
    • https://cdn.shopify.com/s/files/1/0433/8368/5270/files/87269625665.pdf
    • https://cdn.shopify.com/s/files/1/0429/3974/4419/files/mutere.pdf
    • https://cdn.shopify.com/s/files/1/0459/7055/5047/files/70692971520.pdf
    • https://cdn.shopify.com/s/files/1/0430/3237/9545/files/60540030975.pdf
    • https://static.usrfiles.com/ugd/b8c837_bc102151c145408da4fd1d363b2187d9.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c8b9c234fc9424180aa2cc9a37cbb81.pdf
    • https://static.usrfiles.com/ugd/b8c837_12aba08e840a499e9130b786897c4b04.pdf
    • https://static.usrfiles.com/ugd/50c35f_9c8aa4d8f71645d797b1145e42473a15.pdf
    • https://static.usrfiles.com/ugd/edb4a7_74a409b48ceb4cf8ba3e5df4c73ada79.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_off000068bd.bin
c84163a053624c6ea0bd722d6de4e36b74076dacd5845d49235339c45c5958c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BD 5100 bytes
font_01_sfnt_off000079eb.bin
4cd962e7d183fb97fd2bdcd7fb30249ae9b04e6d786769e41bedea23b5597a79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79EB 13328 bytes
font_02_sfnt_off0000a3a5.bin
e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3A5 16092 bytes

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