Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc06f535e22d153d…

MALICIOUS

PDF

53.4 KB Created: 2020-09-02 14:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c7785849f74898b41f872afb016b3e8 SHA-1: 8041c663e5b8f3aee19101a743a33f4b9203ef94 SHA-256: fc06f535e22d153db52f4405a5fe5b49869e655a2d2d17e126a4cdbdbcf20a19
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or phishing lure. The primary malicious URL identified is 'https://ttraff.club/wix?keyword=thanks+answer+in+english'. While no scripts were extracted, the structure and heuristics strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=thanks+answer+in+english
    • https://static.usrfiles.com/ugd/b8c837_7f476750cf7845febaeef278ee60f847.pdf
    • https://static.usrfiles.com/ugd/b8c837_02a60b90fdae42d2b0f0ddc9c69aa836.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_2b9653ad9e9d4f71bb6b42328f5b3cb5.pdf
    • https://static.usrfiles.com/ugd/2c8d66_517f91ca7059406cb3d03bbe6ebe495a.pdf
    • https://static.usrfiles.com/ugd/c34eac_fca5f5f1241b405f8a1eac3fa306df34.pdf
    • https://cdn.shopify.com/s/files/1/0432/6627/7534/files/xunofovufuni.pdf
    • https://cdn.shopify.com/s/files/1/0435/3448/3616/files/65019578268.pdf
    • https://static.usrfiles.com/ugd/3254bf_5adfe04de59844f8b8e4f2548d396c50.pdf
    • https://static.usrfiles.com/ugd/2b25e8_19e633df1225478db45aca104eb1f591.pdf
    • https://static.usrfiles.com/ugd/b8c837_4bddd9dbab824720ad073600196511af.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f6098a780084613aac26b7d57425968.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ff5.bin
39ce3b5858066bdb3a181e3b625e5eec71b8214506483e93ccb9d508f3b4926c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF5 4652 bytes
font_01_sfnt_off00007fac.bin
a262b34066125fb30ca49a974b4db9f3458041ee5a38e986d59d70f543e9f3b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAC 10424 bytes
font_02_sfnt_off0000a396.bin
8e1d9a2185682af4202e806ec30357cdca44a6391bf39a1b74cf73450cc875e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA396 16540 bytes
font_03_sfnt_off0000ba41.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA41 4324 bytes

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