Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd9a818b878339a7…

MALICIOUS

PDF

46.6 KB Created: 2020-08-29 18:20:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ccfdca5561067143a6b7d2be07b6cf3 SHA-1: 45dde9328a1c9bdb11f23f1a065b55c568cfdc4d SHA-256: bd9a818b878339a7ffb3cdb2195efcf08f60a3d3e70cd80bf4100229511187d0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous embedded links, including one to 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the malicious URL. The combination of these factors suggests a malicious intent to redirect users to harmful 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.com/wix?keyword=panasonic+ag-+dvc30
    • https://cdn.shopify.com/s/files/1/0435/5473/4241/files/menivevu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xigazisamakolomomabixefox.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/68279170796.pdf
    • https://static.usrfiles.com/ugd/b8c837_4aa44fe6dadf4609a2de533ece898a5c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f557e4f7c1954be19abf8718eafa25c8.pdf
    • https://static.usrfiles.com/ugd/b8c837_0e7d1d0853c747a1ad25edcac3ef4490.pdf
    • https://static.usrfiles.com/ugd/b8c837_4810765cda42431fb55a6e2685f164f0.pdf
    • https://static.usrfiles.com/ugd/cbe7f7_a871c27680bc430c89bdc8ad5f72a18b.pdf
    • https://static.usrfiles.com/ugd/09c3c7_ef591b85ecca40d08fbe26f4196e5cda.pdf
    • https://static.usrfiles.com/ugd/b8c837_80ddff1bc8594646bfc8c3a814828499.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/mekesofaxovojujudijaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/78444015176.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_off000078f5.bin
415e685f0f62abff529742955d09129dd661acfc3b84bd9acc5b5a0f842053e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F5 5376 bytes
font_01_sfnt_off00008b57.bin
fec78f1195e36150ffa49e06f8f8ec87370505a0f7654507c165ac00b704efb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B57 10220 bytes

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