Malicious PDF — malware analysis report

Static analysis result for SHA-256 9116693b084d77da…

MALICIOUS

PDF

71.0 KB Created: 2020-08-30 09:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2acacdbde3bd7f88d2e7b62f74467d74 SHA-1: c4fe31822f2e6adfab3df84ef949b8acc35347b4 SHA-256: 9116693b084d77da2b2871e54673f1a79645fa7220ee5488bb8a72e9b22dbb8c
130 Risk Score

Malware Insights

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

The PDF file contains embedded links, one of which points to a known malicious redirector. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to trick the user into clicking the malicious link, likely for phishing or malware delivery. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=non+provisional+utility+patent
    • https://cdn.shopify.com/s/files/1/0435/8442/2051/files/75740534290.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5396/files/gupabunimepuwur.pdf
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/48146634659.pdf
    • https://cdn.shopify.com/s/files/1/0435/5103/1464/files/90960299506.pdf
    • https://static.usrfiles.com/ugd/b8c837_43cfc2a5113842e4b04da51788aeff86.pdf
    • https://static.usrfiles.com/ugd/c8a981_952a211bacd643628465e7431a05db92.pdf
    • https://static.usrfiles.com/ugd/724fb5_734c19033a524892b02c8b9b26050006.pdf
    • https://static.usrfiles.com/ugd/b8c837_d5254cda8ee940a693c157be1c2482af.pdf
    • https://static.usrfiles.com/ugd/b8c837_3b3ea172b5c2452ca0f08364a1105733.pdf
    • https://static.usrfiles.com/ugd/b8c837_91e22bda275a4488aca5667fd10a698b.pdf
    • https://static.usrfiles.com/ugd/3f0e57_87620ec8c6fc4e97ae4556c9455dba3c.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_24babb49032d429b80b473a84d61a2f1.pdf
    • https://static.usrfiles.com/ugd/1c90dc_8911600b039d44dab96a9f2c421ab919.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_off0000d9ec.bin
98a5907c0efe023051ed2945bdccbab433cb48b17eae56659590d97f657ff5bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9EC 4944 bytes
font_01_sfnt_off0000eada.bin
7ca0be32e7c13ffa71b26e1dd27f6e119618fd672d707fbce773c35e384beb4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEADA 10704 bytes

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