Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22357e675a79245…

MALICIOUS

PDF

47.9 KB Created: 2020-08-31 01:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b7a1875ea1fbf6bd491c27a7f48e44b SHA-1: d959c54242062dfc78d190dc040596c1938788cc SHA-256: f22357e675a792453036e3dcf4c4ca6c4fbb31f1e01b259f781cc872d983abcd
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with the primary link pointing to a known malicious redirector. The document body, though obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=attack+on+titan+no+regrets', suggesting a lure related to popular media to entice users to click the malicious link. The PDF structure and embedded links are indicative of a phishing or redirection campaign.

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.cc/wix?keyword=attack+on+titan+no+regrets
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/97325725168.pdf
    • https://cdn.shopify.com/s/files/1/0436/5054/7870/files/29416606294.pdf
    • https://cdn.shopify.com/s/files/1/0429/3066/7673/files/mojimefixofisibazaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/2024/6427/files/73336684588.pdf
    • https://cdn.shopify.com/s/files/1/0439/7685/1614/files/48430083272.pdf
    • https://static.usrfiles.com/ugd/b8c837_c0b9f2e80a844d1cba436aabd9056d62.pdf
    • https://static.usrfiles.com/ugd/4b874d_f468b870e18b4c4f8e222651ff3156b3.pdf
    • https://static.usrfiles.com/ugd/47b1e8_f6d562fa62f144fe880b066aaf9870dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_31cd7c18ba68496a80ce25b9cd961f2e.pdf
    • https://static.usrfiles.com/ugd/07625c_2ccccedae7bc4757a9cebf042b4fa4ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_423da957b24945749e3364e832b5d02a.pdf
    • https://static.usrfiles.com/ugd/b8c837_861f8523df4c4ac38abca19799ba8965.pdf
    • https://static.usrfiles.com/ugd/b8c837_20e9b76d67f040d0ae4bcbbd3b4ace65.pdf
    • https://static.usrfiles.com/ugd/b8c837_b224d8e76dea45cda904ec41700dd946.pdf
    • https://static.usrfiles.com/ugd/b4a829_32e800b7f1ca46d2827852a6e4353c01.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_off0000646c.bin
e83df578c234a6acd377b22ec5de0176a09d5251cf71522233692c574ded8c50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 7684 bytes
font_01_sfnt_off00007e7d.bin
3bfb77e3295e0cca9c7b0cac596677c6d0a02cc29ea99afcd4b8d6936196986c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7D 4988 bytes
font_02_sfnt_off00008f86.bin
02bc4eede4ce4e92077935a1be1aba3b7cbd8ae19cc866f4c9b2ecf97ba35986		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F86 10336 bytes

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