Malicious PDF — malware analysis report

Static analysis result for SHA-256 26fa8645a36ed6c5…

MALICIOUS

PDF

62.0 KB Created: 2020-08-30 18:05:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62589f209fb0486746a456bf58a843f2 SHA-1: 81b5653d86ea651475842e3d38110a4371e15de8 SHA-256: 26fa8645a36ed6c5c1452885aa958fcffd70162fe4baedf56637d2db21f8040e
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=11.+s%25C4%25B1n%25C4%25B1f+kimya'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body itself is heavily obfuscated and appears to contain the malicious URL. This suggests a phishing or redirection attempt to a malicious site.

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.com/wix?keyword=11.+s%25C4%25B1n%25C4%25B1f+kimya
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/duvazewoporigijepuzak.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0273/files/ames_performance_phone_number.pdf
    • https://cdn.shopify.com/s/files/1/0429/6923/5619/files/piano_music_for_ballet_class.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2822/files/gokigajomexabazu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1796/8543/files/bikig.pdf
    • https://cdn.shopify.com/s/files/1/0430/2890/6138/files/siperebevilibabep.pdf
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/ammyy_admin_3._5_software.pdf
    • https://static.usrfiles.com/ugd/934fc3_d3337970e2ca4ae78f83e0125e53eab8.pdf
    • https://static.usrfiles.com/ugd/b8c837_01abae187c814641bd7c5b67a3d3278f.pdf
    • https://static.usrfiles.com/ugd/de3d83_f3a53717215a4c6eadba7392416acaed.pdf
    • https://cdn.shopify.com/s/files/1/0433/6146/8567/files/xodofasogurebub.pdf
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/adiabatic_saturation_temperature.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/86568341156.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_off0000a526.bin
6b270f042521acb0e8fcfb731829d85cf479450f0063a22bd1d8e28d5e70d335		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA526 4452 bytes
font_01_sfnt_off0000b41a.bin
84c8c6ca36289e3428c9aa2eda797e21701687733d1a2ef42a70f42f045de731		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB41A 13104 bytes
font_02_sfnt_off0000dbf0.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF0 4324 bytes

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