Malicious PDF — malware analysis report

Static analysis result for SHA-256 801832ad364962a4…

MALICIOUS

PDF

69.8 KB Authoring application: LibreOffice Draw
MD5: 179e2bfb590a845709e5d45e8c189e4e SHA-1: cdd509b7ea151a73a098e667637aedd347d2e929 SHA-256: 801832ad364962a4c7133d292b2f80a52a33f761c1fec5a2f12f4039aab1e2af
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including a critical finding for a large number of external PDF links, and a ClamAV detection for 'Pdf.Phishing.TtraffRobotInstall'. The embedded URLs suggest a phishing or spamming campaign, aiming to redirect users to potentially malicious content hosted on external sites. No scripts were extracted, but the sheer volume of linked PDFs indicates a coordinated effort to distribute content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://orlandosanchezfilms.net/uploads/1/3/0/5/130542755/kipas-lekudifakakalu-punorixodufadu.pdf
    • http://roxok.vet77.ru/uploads/2020/01/28/sabepodi.pdf
    • http://113366.co/uploads/1/3/0/6/130604563/nafipalof_juzigi.pdf
    • http://nowandzenpet.com/uploads/1/3/0/3/130379422/furujividisel-xizukisalisa-tutowav-gimux.pdf
    • http://positivepushkc.com/uploads/1/3/0/4/130488569/moxibonijatuzano.pdf
    • http://niacurriculum.com/uploads/1/3/0/4/130436431/130436431.html#algorithms+illuminated+github
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011c8.bin
e4d6ce83ffe859b067babe7ed13ed48347add0a897950b09e542f7e5fd73d3d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C8 8372 bytes
font_01_sfnt_off0000a043.bin
6db2f878e0fd57d3a351d0d81a5ccd7b58f68df6728dadc3aee3ebeb1a1d6e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA043 16068 bytes
font_02_sfnt_off0000b576.bin
d62ffcbe0d244ec5792bc30330e1b615136132d9e12842e69eccef4152360eaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB576 14056 bytes

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