Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2a5f0a8050e2c06…

MALICIOUS

PDF

39.4 KB Created: 2020-08-30 09:41:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5667298cff8f73d1ae7c6888f8077abf SHA-1: cd1fd7b0e197f33a94cad3520822c2159e26ff53 SHA-256: a2a5f0a8050e2c067b861cd8ba87a7982115ec8c97e36995fd83933998038d39
60 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains the same malicious URL. The file was generated by wkhtmltopdf, a tool often abused for delivering malicious PDFs.

Heuristics 2

  • 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.
  • 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=ali+kundilli+1+indir
    • https://static.usrfiles.com/ugd/0baf77_54e2260a37494354bc034f150f72f15b.pdf
    • https://static.usrfiles.com/ugd/3aca14_a6338b95fcfc4832a6cfa7686d676930.pdf
    • https://static.usrfiles.com/ugd/e73fea_611795aa8f1549809521e987d8c3e3a3.pdf
    • https://static.usrfiles.com/ugd/f1d680_81cacb48f0f743d3b46c59367fc076e0.pdf
    • https://static.usrfiles.com/ugd/89064d_b15b2cc5ed644ce98d04922a7f898c1d.pdf
    • https://cdn.shopify.com/s/files/1/0464/6466/3704/files/47025567863.pdf
    • https://cdn.shopify.com/s/files/1/0431/8219/4852/files/jinuxok.pdf
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/28377096420.pdf
    • https://cdn.shopify.com/s/files/1/0466/8630/6468/files/lofodobugexuvulavipez.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_off00004e79.bin
4dc7041f778167c365d5ae3ff371eb6ef550056ae4dc1eb92d93e591f2d3f8f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E79 4108 bytes
font_01_sfnt_off00005c4a.bin
025406d2b6b49031e41102d8ddf5371f3ccf9eb37984eb5efb45bb47595eb260		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4A 12008 bytes
font_02_sfnt_off000081b6.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81B6 4324 bytes

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