Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fafc4c97429d729…

MALICIOUS

PDF

35.7 KB Created: 2020-08-29 20:07:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af865ae1b5674d6a54fcee22a1e4ec0a SHA-1: 6f4bd7a495140cd9edad952ca7682e02a39aff71 SHA-256: 1fafc4c97429d729daab908bcfcde5270816bd83d16babc02c8b74adb62e0c84
128 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, appears to contain text related to a 'detention slip template' and includes the malicious URL. This suggests a social engineering attack where the user is tricked into clicking the link, likely under the pretext of downloading a document, which then redirects them to malicious infrastructure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=detention+slip+template+pdf
    • https://static.usrfiles.com/ugd/f7fbc8_da6a72b04fee450b8244ddba36d6ff2a.pdf
    • https://static.usrfiles.com/ugd/b8c837_38b8e9e998144927a6925c43ce30ebbc.pdf
    • https://static.usrfiles.com/ugd/b8c837_3a8f1a9597654616a077a12e8ce25a2d.pdf
    • https://static.usrfiles.com/ugd/6cf392_d9351949245a489ba5d5292fbab6ed9d.pdf
    • https://static.usrfiles.com/ugd/b8c837_4dae6cf70624488d80d3fba796d71520.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bd7681ab6534374b477d4aa1fe4b1fe.pdf
    • https://static.usrfiles.com/ugd/191a6d_6acdc84e6990498fa4ef10a4fa166ab0.pdf
    • https://static.usrfiles.com/ugd/b8c837_5df9caff6de54f7495ebebf00a58924b.pdf
    • https://static.usrfiles.com/ugd/b8c837_fd8539a7c5b848be8d4ab155ebe52973.pdf
    • https://cdn.shopify.com/s/files/1/0437/0923/5353/files/wavafinogilixerezaxik.pdf
    • https://cdn.shopify.com/s/files/1/0431/8022/8757/files/pioneer_avh-_x4500bt_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9959313526.pdf
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/90820503431.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_off00004f84.bin
2b6e742610aa3d1b3e6ead9ec830464f04296f078dd9c1723392da20e7014908		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F84 5088 bytes
font_01_sfnt_off000060c2.bin
59df9e42dcb8ee1c6fc2deff46dd3ec533593885d2acaf5d6e5eca7dc341f0f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C2 9864 bytes

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