Investigators believe that his family had more assets than they declared and faked documents to hide it, according to Reuters. The country's Supreme Court ordered a group of investigators to look into the matter, culminating the report produced this week.
But that may soon change - all because of the Calibri clue. Experts at Radley found the font that was used in her documents to be Calibri.
The documents are dated February 6, 2006, but it is important to note that the Calibri font wasn't commercially available until much later.
The whole thing has prompted a tweet storm with the hastag #Fontgate. However as the Microsoft website points out, if you were a font fanatic, the earliest version of Calibri was able to be downloaded as far back as 2005 and you potentially could've even gotten access to it in 2004.
Following the report, opposition parties, including Pakistan Tehreek-e-Insaf (PTI) and Pakistan People's Party (PPP) demanded Sharif to immediately relinquish his office. But that is a weak defence considering that the JIT appointed by the Supreme Court is in the process of making its mind known.
Like this story? Like CNBC Make It on Facebook. In the meantime, the country's apex court will decide on how to proceed with the JIT's report and whether to call for a trial.More news: JPMorgan's Jamie Dimon blows up at Washington on earnings call
The daughter of Pakistan's prime minister Nawaz Sharif is embroiled in a corruption scandal, the outcome of which could rest on the date a Microsoft typeface was released.
It also linked a number of Pakistan President Nawaz Sharif's children to several luxury London flats, which critics of the Sharif administration said were bought using funds obtained via corruption.
For this reason, teams of senior supreme court lawyers will be constituted to file a befitting reply to the weakness in the report of JIT.
The court is considering its next steps and will begin deciding what action to take next week. At issue is whether Maryam Nawaz, daughter of Pakistani Prime Minister Nawaz Sharif, forged the documents she presented as proof of his innocence in the case.
Prime Minister Sharif has denied all claims of wrongdoing, saying his family acquired all their wealth through legal means.
The Federal Cabinet in its meeting held on Thursday also endorsed Prime Minister Nawaz Sharif's decision to not step down.
The plush apartments are at the heart of the case against the Sharif family, with authorities and the opposition questioning the legitimacy of funds used to buy them via offshore companies.