Ransomware packages are designed to encrypt files found on a victim's site. The exfiltration of files is done through PowerShell scripts.
The release of the zipped data is an indication that the victim has not yet responded to the ransom note generated by the ransomware after the encryption process is complete. The file put online appears to be corrupt and the contents cannot be viewed.
Haldiram's was started in 1937 in the city of Bikaner in the north Indian state of Rajasthan by Ganga Bhishen Agarwal.
A screenshot of the Maze website announcement about the attack on Haldiram's.
Haldiram's then began exporting its products to the US to capitalise on the large migrant Indian population there.
The company now also exports to Australia and its products are sold at many of the groceries that stock Indian foods.
Haldiram's overtook Nestlé Maggi, Domino's and McDonald's in 2016 to become India's biggest maker of snacks, registering turnover of 40 billion Indian rupees (A$746 million).
iTWire has contacted the company for comment.