Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01808722561235a…

MALICIOUS

PDF

22.3 KB Authoring application: LibreOffice
MD5: b90a8fa1c2b7e437b7aeaddab041aed6 SHA-1: 3734ace6f2e9b1ba7e25a6720a259d4e4bc90e48 SHA-256: d01808722561235aacc078f2ad673afedfb53a137698d4e2a457f782fe1462b6
90 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, indicating a link farm designed to redirect users to potentially harmful content. The primary heuristic identified this as a PDF_SEO_LINK_FARM, suggesting an attempt to leverage SEO tactics for malicious distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 2

  • 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.
  • 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://instaadz.com/uploads/1/3/0/6/130639792/718983.pdf
    • http://guemeschannelembroidery.com/uploads/1/3/0/3/130312969/kokinazikaparaxot.pdf
    • http://northidahostrainedhorses.com/uploads/1/3/0/5/130541743/rifuleluka.pdf
    • http://vancouverislandpremiumhardcandy.com/uploads/1/3/0/5/130550825/fugirij-tosewezator-migenoda.pdf
    • http://thevegantravels.com/uploads/1/3/0/4/130489222/7197514.pdf
    • http://nailsbyrose.nl/uploads/1/3/0/6/130603945/0dd5c.pdf
    • http://tierisch-tragbar.de/uploads/1/3/0/6/130639792/gunelujif-silazefimute-pesaz.pdf
    • http://spdcpa.ca/uploads/1/3/0/4/130478295/9b23c5fd197.pdf
    • http://lakisgr.com/uploads/1/3/0/2/130289322/fowaxijuk.pdf
    • http://sauerlandhypotheek.nl/uploads/1/3/0/2/130289658/9cfc64e.pdf
    • http://daystarmicrophones.com/uploads/1/3/0/5/130539329/1209772.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013ec.bin
65fb42ea3e585b0a3afd00bb3e9854fff605834a5f73c5814bd88568c970e306		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13EC 10312 bytes

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