Malicious PDF — malware analysis report

Static analysis result for SHA-256 fff2459955998c8d…

MALICIOUS

PDF

160.6 KB Created: 2020-09-01 23:10:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7965f68a4ce8a6e665f1e12680dafae SHA-1: 2999957daf16fab81aa9a4617e642d2fe08f16f4 SHA-256: fff2459955998c8d69c4ffc6ed2b0085fbbb6d34f68b2328234d7e21dc981634
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and a critical heuristic identified a malicious redirector link. The embedded URL, https://ttraff.ru/wix?keyword=chennai+map++pdf, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the PDF structure and the malicious URL strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.ru/wix?keyword=chennai+map++pdf
    • https://static.usrfiles.com/ugd/b8c837_facd8f0f98a144e2b13d908f4d4011ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_163e8874deb34935ad4f2c67a3d5db7d.pdf
    • https://static.usrfiles.com/ugd/c0b427_4ec8570cf43d42ad9caede71457cc997.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetitoditasenubekuxon.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/animismo_e_espiritismo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8283/3308/files/22006688468.pdf
    • https://cdn.shopify.com/s/files/1/0437/1267/5990/files/xagakudukapu.pdf
    • https://cdn.shopify.com/s/files/1/0451/7848/6933/files/90616970374.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/autoestima_baja_y_alta.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/18087176077.pdf
    • https://cdn.shopify.com/s/files/1/0428/2764/5084/files/13889364160.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_off0002239a.bin
adc2e504ab37487c1f8ef195497d969de03b06e9c0bb9ec345c207eaec2353f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2239A 4880 bytes
font_01_sfnt_off00023411.bin
b3ac8f6dbc6247ecbaeb2785d8d03beb85ec681cdd677437f9e2072956e2f291		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23411 13284 bytes
font_02_sfnt_off00025fab.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25FAB 16164 bytes

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