Malicious PDF — malware analysis report

Static analysis result for SHA-256 016268104d57e53b…

MALICIOUS

PDF

45.4 KB Authoring application: pstoedit
MD5: bacc33006ed74c254ad91f1fc985d1ab SHA-1: d79c87e8528f57e8beec9e66cf371476d84deaf3 SHA-256: 016268104d57e53b99c0920423ef6d55fbe996bc4012401cc87685aa8be2aade
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as phishing-related malware. The embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://nsedacademy-payments.org/uploads/1/3/0/2/130272462/4b3038d8a1e.pdf
    • http://mikesrefinishing.com/uploads/1/3/0/4/130489363/2545225.pdf
    • http://nlccpsw.org/uploads/1/3/0/5/130588461/4ec79de47369de.pdf
    • http://sodosadizu.novostrojka-start.ru/uploads/2020/01/28/62b8fc1f1.pdf
    • http://my-riverside-dui-lawyer.com/uploads/1/3/0/6/130621075/vawibube-fejudanumi.pdf
    • http://aldodelgado.net/uploads/1/3/0/6/130603867/mazuzobug-karifakolomeb-nimigutopu-pudexazipi.pdf
    • http://wepugubuj.atelier-interior.ru/uploads/2020/01/28/6dbed81308.pdf
    • http://internationalaid.net/uploads/1/3/0/6/130639270/dajegori.pdf
    • http://project-black.net/uploads/1/3/0/4/130478261/9584588.pdf
    • http://miamfoundation.com/uploads/1/3/0/6/130639875/risuxurakejelawuvewa.pdf
    • http://blockchainambassador.ca/uploads/1/3/0/4/130435743/130435743.html#autodesk+revit+2020+product+key
    • 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_off0000143d.bin
5c44916bf2f327f0bae17a0402c211ad906cbecd04d97384d8af3a596382a6ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x143D 8108 bytes
font_01_sfnt_off00006b86.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B86 16036 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.