Malicious PDF — malware analysis report

Static analysis result for SHA-256 958b12018a668038…

MALICIOUS

PDF

53.6 KB Authoring application: Soda PDF
MD5: bceeae490a25e565060937a1c326e1c7 SHA-1: 5721f4c1ae546c5f294db14c4019234f07ecc6c1 SHA-256: 958b12018a66803862d23fdf4702af3237e36b62a9da6dd3d2adb57a815bad3c
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection for 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The embedded URLs indicate a link farm designed to redirect users to various PDF documents hosted on different domains. This pattern is commonly used for phishing or distributing further malware. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://minimarketlorena.com/uploads/1/3/0/8/130814531/sitojufanovaxi.pdf
    • http://premiumadultdiapers.com/uploads/1/3/0/6/130639368/dulozalenojidexofem.pdf
    • http://scripttoscreenplay.com/uploads/1/3/0/4/130435646/xepovokexes-fezipowajugoj.pdf
    • http://blueseasmarinesurveys.com/uploads/1/3/0/2/130291640/bekokijozalo.pdf
    • http://civiccoalition-jerusalem.org/uploads/1/3/0/4/130436007/duduza_karekivuxupaza.pdf
    • http://fourletterwordsgame.com/uploads/1/3/0/4/130488666/778f3f524f8.pdf
    • http://alleylouisville.com/uploads/1/3/0/7/130738554/jovusoxitixawan.pdf
    • http://slimeshoppe.com/uploads/1/3/0/6/130604725/6587545.pdf
    • http://farmersmarketpettreats.com/uploads/1/3/0/5/130589308/4245845.pdf
    • http://sookeyhairextensions.com/uploads/1/3/0/2/130288761/nixisodebabenepe.pdf
    • http://nattertowing.com/uploads/1/3/0/4/130483509/16b685d.pdf
    • http://braveangelyoga.com/uploads/1/3/0/6/130605244/silufavow.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/4/130489082/130489082.html#arcgis+field+calculator+python+functions

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001404.bin
4e2ad099a869415667f46c5d767ea68f1778ac9c86ad495b707b52751b60b66f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1404 9856 bytes
font_01_sfnt_off000086a4.bin
1646a304e256ea2c82ed8db3706ba7d912b24b8b3e39037a476eb5e728221b81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86A4 11556 bytes

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