Malicious PDF — malware analysis report

Static analysis result for SHA-256 c55c689365b3adc1…

MALICIOUS

PDF

43.6 KB Authoring application: OpenOffice.org
MD5: 9dc3a1a2c98ca0fe71c7aa745c9b0232 SHA-1: cdde492aadc00057f61bf994992a8bcfbaf045e9 SHA-256: c55c689365b3adc17a29980b0e0432bfe5dc14b3096d711df00f49cfd0f28778
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, suggesting a phishing or traffic redirection scheme. 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://creativefreelancerdirectory.com/uploads/1/3/0/6/130620792/4894421.pdf
    • http://kenbugulfilm.com/uploads/1/3/0/2/130287243/vesoluvokokaf-tixonunafesu-buxosegekotonud.pdf
    • http://lubbockministry.com/uploads/1/3/0/7/130739256/9e3bd1.pdf
    • http://reneegdesigns.com/uploads/1/3/0/4/130476587/e2a77db639.pdf
    • http://srilankanprivatedriver.com/uploads/1/3/0/4/130483087/83780a58.pdf
    • http://chrisdelany.com/uploads/1/3/0/2/130272977/5393853.pdf
    • http://a1412531xstreamtravel.xsideas.com/uploads/1/3/0/6/130621622/130621622.html#radial+nerve+origin

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010ea.bin
d574c37d4774aa06e52121e47649adf31dcbe8848856370354f892acf5fd29db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA 8212 bytes
font_01_sfnt_off0000647d.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x647D 16036 bytes

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