Malicious PDF — malware analysis report

Static analysis result for SHA-256 77d4b047ecdcc8eb…

MALICIOUS

PDF

45.7 KB Authoring application: ImageMagick
MD5: 869582c76ee291de3e34a7aa52756a4b SHA-1: 1888faec38c9dc0623ba1d3664a201ecefbb8fad SHA-256: 77d4b047ecdcc8eb82ae8666305857ba3dfb669f691049bbade24e735418c741
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical finding for a large number of external PDF links, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection further confirm its malicious nature. The embedded URLs likely lead to further malicious content or phishing pages.

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://14weekends.com/uploads/1/3/0/2/130291783/nowakeputopixi.pdf
    • http://neuroimmunekids.org/uploads/1/3/0/6/130605472/cb3bbdb8.pdf
    • http://mcpeakeandcompany.net/uploads/1/3/0/4/130477915/loxitutedi.pdf
    • http://nanascountryporch.com/uploads/1/3/0/6/130604595/mijakodidawudibufar.pdf
    • http://deardrink.us/uploads/1/3/0/5/130543685/sukamebegafepetusa.pdf
    • http://maikesmarvels.net/uploads/1/3/0/2/130291724/favure-vefire.pdf
    • http://customerservicemax.com/uploads/1/3/0/4/130476766/danujofapaxeb.pdf
    • http://life-by-katie.com/uploads/1/3/0/6/130620438/8877b6f26043458.pdf
    • http://workcopi.com/uploads/1/3/0/3/130323789/16657.pdf
    • http://paymeprompt.net/uploads/1/3/0/4/130477775/8429cdee9e674.pdf
    • http://eigolessons.com/uploads/1/3/0/4/130435888/8ffb707c03dd27.pdf
    • http://organik-zeytinyaglari.com/uploads/1/3/0/5/130543052/tebituzarov.pdf
    • http://dsabids.com/uploads/1/3/0/5/130551581/dc092907.pdf
    • http://deviatefish.net/uploads/1/3/0/6/130605275/nepam.pdf
    • http://www.mybaby3d.com.au/uploads/1/3/0/2/130289291/6130575.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/2/130272278/130272278.html#fur+elise+free+piano+notes
    • 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_off00003cc3.bin
0d5d1431431a9f8dc10f3748659f3927b3f3a14b81a73ef3b8e9723c206f5964		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CC3 16076 bytes
font_01_sfnt_off000054c9.bin
409af282f4f3054f4a7b25f8bc4cbf168b497183dd29b97976c39c3ddc7f0cec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54C9 9704 bytes

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