Malicious PDF — malware analysis report

Static analysis result for SHA-256 5055392370415e01…

MALICIOUS

PDF

43.6 KB Created: 2020-08-31 03:15:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77115c70e8c614cf6c7d45f1b648c572 SHA-1: e66a88240c4b9618758a096bff292b90a80f2fad SHA-256: 5055392370415e01417348185b1b82ed58aecebe123342f729ba63bda5ed0916
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text related to a vehicle owner's manual and the redirector URL. This suggests a phishing or social engineering attack where the user is tricked into clicking a link that leads to malicious content.

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.ru/wix?keyword=2001+infiniti+i30+owners+manual+pdf
    • https://static.usrfiles.com/ugd/1cc7e8_03c2d5ca88ef445a8a490c80b430bd1c.pdf
    • https://static.usrfiles.com/ugd/b8c837_cf60f71e75e84616866dc899ae96b425.pdf
    • https://static.usrfiles.com/ugd/299074_5b70b72881a7416da7e2a6f8ceb5bbe1.pdf
    • https://static.usrfiles.com/ugd/5be868_ef32cbf0c10f40bfacb008d5ca29263b.pdf
    • https://static.usrfiles.com/ugd/f09a9d_4d6b647fb7464bc1b1da97d2b8631bbe.pdf
    • https://static.usrfiles.com/ugd/5b5da7_923318c797644026b6cbdba4a60b02ea.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_d81ca0da69c34f769d3d1d31cce8ec8f.pdf
    • https://cdn.shopify.com/s/files/1/0439/3716/9576/files/palirufobanurobibowax.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5763/files/86644648744.pdf
    • https://cdn.shopify.com/s/files/1/0435/8347/1771/files/59070889746.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_off00006a7e.bin
74ae824378edb857732f5380c9cf5fa7a40e00fad14415dd51ad24c305da07d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7E 5676 bytes
font_01_sfnt_off00007dc0.bin
1e5ea383489508faf6c0c523ddc88f91f1ee3bee757f19a1d027ff7871b5298d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC0 10640 bytes

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