Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9644c0cf10b548d…

MALICIOUS

PDF

42.4 KB Authoring application: Soda PDF
MD5: aa3e5903a3b6db1afd8a056e5c0854d5 SHA-1: 655366307d995e0ae2e0a03c374202aee600c8a9 SHA-256: f9644c0cf10b548d748f00a55a1e9fae0f4e6c170e3cb1e4561bdad7b31cef79
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm with 11 URLs, indicating a phishing or malicious redirection attempt. The presence of a visual download button lure further supports this. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score confirm the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://florre73.com/uploads/1/3/0/6/130620482/b7077717.pdf
    • http://stgo2020.net/uploads/1/3/0/4/130477890/725ae73336369.pdf
    • http://blooming-lillys-boutique.shop/uploads/1/3/0/6/130621852/4687518.pdf
    • http://nwintegrativeprimarycare.com/uploads/1/3/0/2/130271098/bogekotafepovijetag.pdf
    • http://www.saintandreofficial.com/uploads/1/3/0/4/130489371/788b714db2e787.pdf
    • http://niallbishop.com/uploads/1/3/0/4/130476880/426d2692fbc2.pdf
    • http://adammarkeckman.com/uploads/1/3/0/3/130379380/2494661.pdf
    • http://kamconsulting.fr/uploads/1/3/0/7/130740458/e2df34.pdf
    • http://oneparkplacefl.com/uploads/1/3/0/2/130288427/lobadowiwezawax.pdf
    • http://alexandraforsythermt.com/uploads/1/3/0/2/130272963/8cb2a8793074393.pdf
    • http://rossloto.site/uploads/1/3/0/6/130620275/wibivugubizel.pdf
    • http://encore00035.voyagerwebsites.com/uploads/1/3/0/7/130738513/130738513.html#shure+cartridge+alignment+protractor
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000367a.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x367A 16204 bytes
font_01_sfnt_off00004e63.bin
aacf6186eec5991c6d8a09ba106bf1b3c31d5be94ef4ff3aa55ce4f39481a9f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E63 8132 bytes

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