Malicious PDF — malware analysis report

Static analysis result for SHA-256 b39cbce2ce07a3cc…

MALICIOUS

PDF

34.2 KB Created: 2020-08-31 12:16:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54fe25523906c4b44ae92e7333135ba7 SHA-1: 66c10c6bd61da0a3bb38222aeee4e2a3d1a68510 SHA-256: b39cbce2ce07a3cc82b722d80d6f1401f9ce16f0c5bd9f48574c581f95afd8fa
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure, referencing 'Razzoo's menu calories'. The primary malicious URL identified is https://ttraff.cc/wix?keyword=razzoo%252527s+menu+calories, which is flagged as a malicious redirector. This suggests a phishing or scam attempt designed 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.cc/wix?keyword=razzoo%252527s+menu+calories
    • https://static.usrfiles.com/ugd/a01749_d2a48dc87bc34657802527763841f2cf.pdf
    • https://static.usrfiles.com/ugd/269bb8_7abb8ded0c49435b83830ce3c31adf70.pdf
    • https://static.usrfiles.com/ugd/b8c837_e4070b95493a40ac9285ce3d84f40896.pdf
    • https://static.usrfiles.com/ugd/6d59ab_39df7fcb9447459fbff5f33f49e6f34b.pdf
    • https://cdn.shopify.com/s/files/1/0428/3020/0991/files/82966136952.pdf
    • https://cdn.shopify.com/s/files/1/0436/4392/8726/files/dolotirijubefi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0012/files/8505966261.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/80990360285.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/tukizigokenanugodo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8591/3500/files/piazzolla_oblivion_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0428/2908/6876/files/48490535169.pdf
    • https://cdn.shopify.com/s/files/1/0431/6738/3716/files/yahoo_messenger_for_windows_vista.pdf
    • https://static.usrfiles.com/ugd/b8c837_7126a32b991b40a094026de72dcea7e8.pdf
    • https://static.usrfiles.com/ugd/b8c837_998e0a02ab5244a2ae90d93310040798.pdf
    • https://static.usrfiles.com/ugd/b8c837_44604c79e513478e88e00f99254ec125.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_off000049f8.bin
89102ea82c3e1139610a41578ce66547ca1abed905dacb8d49643adb02523413		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49F8 5036 bytes
font_01_sfnt_off00005b10.bin
05932bfaeb9bd636032ea5956ae487e0d8e47473025fe73fff06ec09b7516ff5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B10 9680 bytes

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