Vietcombank sold the greenback at VND26,435, down 0.04% from Wednesday. The currency was mostly stable at around VND26,615 on the black market.
The State Bank of Vietnam lowered its reference rate by 0.04% to VND25,177.
Globally, the U.S. dollar index, which tracks the currency against six major peers, languished on Thursday near the one-week low of 97.459 reached overnight, Reuters reported.
The index last stood at 97.731, flat from Wednesday's closing level. The dollar was little changed at 147.21 yen, after a 1.8% three-day tumble. The euro rose slightly to $1.1734, while sterling edged down to $1.3470.
The U.S. government shutdown made it a near certainty that crucial monthly payrolls data will not be released on Friday, but overnight the private ADP employment report showed the economy unexpectedly shed jobs in September, with the prior month also revised to a decline.
The ADP report "suggests the U.S. economy is in almost dire need for further policy support," and as a result, "the markets are discounting a much higher probability of rate cuts in October and December," said Kyle Rodda, an analyst at Capital.com.