Malicious PDF — malware analysis report

Static analysis result for SHA-256 d42ee5a038379c88…

MALICIOUS

PDF

69.8 KB Created: 2020-09-05 12:50:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47e5b93b709365853591a550f2e79827 SHA-1: 599fe63087a53fa975cecbd90b76fb699002800d SHA-256: d42ee5a038379c88f6a356e58d27b36028e3c148eaf2a33793c8bd24177df53e
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. One of these links, 'https://ttraff.club/wix?keyword=south+african+wine+industry+information+and+systems', is flagged as pointing to known malicious redirector infrastructure. The document body contains garbled text and a repeated URL, further suggesting a non-legitimate purpose.

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=south+african+wine+industry+information+and+systems
    • https://static.usrfiles.com/ugd/b8c837_82978ccb474743e383af397d10f35d19.pdf
    • https://static.usrfiles.com/ugd/cbe7f7_139ddadc17a34e57bd16a43a443f2347.pdf
    • https://static.usrfiles.com/ugd/0f1814_05bb809ff34746ed85f9145094a246ce.pdf
    • https://static.usrfiles.com/ugd/ae059d_82a91a1eb1b94070bb4fe0c41c8f4e5b.pdf
    • https://static.usrfiles.com/ugd/38bf1f_9e38d765945749a5bde9bf46667de488.pdf
    • https://static.usrfiles.com/ugd/1be480_6d19e3dcea314a03a8753500c72ed67d.pdf
    • https://static.usrfiles.com/ugd/01e791_ae9621eab1b24dc592974d292343214e.pdf
    • https://static.usrfiles.com/ugd/4bb894_90b44698853b4d61a8cba3a677b2add0.pdf
    • https://static.usrfiles.com/ugd/e49726_dd345eeaf8b44a74831ad7211ec71872.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cd0c15b13944d3c8c0a7ccd19bb429c.pdf
    • https://static.usrfiles.com/ugd/784815_9d5ec99b457741f3b484a239eb248954.pdf
    • https://static.usrfiles.com/ugd/6f58fb_403d534e54244df58fe11e479cdbb9ad.pdf
    • https://static.usrfiles.com/ugd/d43733_5c4e0c4692be4a00b50908a141821b75.pdf
    • https://static.usrfiles.com/ugd/6fd45c_b505f51641114f4e8f3521cbf8dcf22b.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_off0000c5ba.bin
c32e747742e6394b37b04b2e9a48d5d53672232504aeb49e1371ab1baaa7323e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5BA 5408 bytes
font_01_sfnt_off0000d7fe.bin
242886dab481da812debe8f3f0cb8ad1d458e40f119274428e1edce0b7ab7a76		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FE 10416 bytes
font_02_sfnt_off0000fbac.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAC 4324 bytes

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