Malicious PDF — malware analysis report

Static analysis result for SHA-256 4672305f0cb89f1b…

MALICIOUS

PDF

166.5 KB Created: 2020-08-11 02:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9cf6866e81116faeb8d28449d0e9eeed SHA-1: 3f3d96c32faad28cd92d80dd7e9d561f07502ecc SHA-256: 4672305f0cb89f1b6175a711c62d969099a345104e236a139d92c59f8e4cd918
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to ttraff.com. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to lure the user to this malicious site. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=bacaan+sholawat+burdah+lengkap+pdf
    • http://files.jadeyoga4health.com/uploads/1/3/0/7/130776296/texojawuv.pdf
    • http://files.celebratedancepro.com/uploads/1/3/1/6/131637147/24748.pdf
    • http://bubeb.jambo59.com/uploads/1/3/1/0/131070722/c05da76ec44d2c1.pdf
    • http://lavasofab.ultrafitpersonaltrainingstudio.com/uploads/1/3/1/4/131407089/7700194.pdf
    • https://cdn.shopify.com/s/files/1/0435/5178/5109/files/64934313914.pdf
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/71308567171.pdf
    • https://cdn.shopify.com/s/files/1/0433/6284/4837/files/81428945196.pdf
    • https://cdn.shopify.com/s/files/1/0432/5769/2320/files/madevidobi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2888/1318/files/xotez.pdf
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/where_to_mail_form_940.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77084518355.pdf
    • https://cdn.shopify.com/s/files/1/0432/8020/3944/files/burnout_3_soundtrack.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/savobufowezegirub.pdf
    • https://cdn.shopify.com/s/files/1/0448/7377/7319/files/lean_canvas_modelo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6189/3534/files/amenemope_proverbs.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
stream_006_off00024fac.bin
ca75610500c72c5410da9d561ee999571e1289a7b73d6de29d9de4ba67ded00e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x24FAC 35728 bytes
font_00_sfnt_off0002163c.bin
2ad14db7c6555c88ae4b8724a09e7427d156f94db2f5a4a586c5cbc9fd35939f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2163C 5760 bytes
font_01_sfnt_off000229d4.bin
8af2c7b40c7656f0aa46de8325181cbd5019cee1e087c9c0491163d611c75380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x229D4 12204 bytes

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