Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0335149a06b95ea…

MALICIOUS

PDF

81.2 KB Created: 2020-08-12 00:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c18d7f822006c4593e81ccc1e2dfbad8 SHA-1: 8a5032fb74b09239c19f773c8b75a54758b029ee SHA-256: d0335149a06b95ea458bb813f707d88ef1f7976179eb52220b14c012b8d6203b
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=avebury+map+pdf, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains references to the malicious URL and other embedded links, suggesting a social engineering lure.

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.ru/pify?keyword=avebury+map+pdf
    • http://files.schnepfsveggiedrivethru.com/uploads/1/3/1/3/131379991/telokep_dijibubugefop_jixotunovameja_vibumunojarib.pdf
    • http://files.amandatolentino.com/uploads/1/3/0/7/130738512/57dc99d41faf8f7.pdf
    • http://bisaja.napacommercecenter.com/uploads/1/3/1/3/131384429/sunanop-vowojavuziva-dirixomonose-fijinigikibag.pdf
    • http://files.quran-al-mubeen.com/uploads/1/3/1/0/131070604/zarujimowezi-favani-repivugel.pdf
    • https://cdn.shopify.com/s/files/1/0430/9316/4181/files/65208518152.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/kipadutowuwajuxaxebodo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3325/6345/files/tipos_de_plantas_carnivoras.pdf
    • https://cdn.shopify.com/s/files/1/0431/5945/3860/files/57024298243.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/viginupute.pdf
    • https://cdn.shopify.com/s/files/1/0437/9341/6349/files/sopedifufovej.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/66093592255.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/puzodaregaxitawomukagi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/dudidekom.pdf
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/nugidasidebitu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102c0.bin
c82e111afc5e3e7a99be5d2b4fb621d7b32982dc28f7a557b1747b811c3c2e0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102C0 5268 bytes
font_01_sfnt_off0001149c.bin
3bd358d02fec747fc09a90294fc2980d170fa8075eb6ad34fae642228af91c4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1149C 10380 bytes

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