ThaiCERT    ETDA    MDES
Report
Search
Home > List all groups > List all tools > List all groups using tool PowerSpritz

Threat Group Cards: A Threat Actor Encyclopedia

Permanent link Tool: PowerSpritz

NamesPowerSpritz
CategoryMalware
TypeDropper, Downloader
Description(Proofpoint) PowerSpritz is a Windows executable that hides both its legitimate payload and malicious PowerShell command using a non-standard implementation of the already rarely used Spritz encryption algorithm.

PowerSpritz decrypts a legitimate Skype or Telegram installer using a custom Spritz implementation with the key “Znxkai@if8qa9w9489”. PowerSpritz then writes the legitimate installer to disk in the directory returned by GetTempPathA either as a hardcoded filename such as SkypeSetup.exe or, in some versions, as the filename returned by GetTempFileNameA. The installer is then executed to trick the potential victim into thinking they downloaded a legitimate, working application installer or update. Finally, Spritz uses the same key to decrypt a PowerShell command that downloads the first stage of PowerRatankba.
Information<https://www.proofpoint.com/sites/default/files/pfpt-us-wp-north-korea-bitten-by-bitcoin-bug.pdf>
Malpedia<https://malpedia.caad.fkie.fraunhofer.de/details/ps1.powerspritz>

Last change to this tool card: 23 April 2020

Download this tool card in JSON format

Previous: PowerSploit
Next: PowerStallion

All groups using tool PowerSpritz

ChangedNameCountryObserved

APT groups

XLazarus Group, Hidden Cobra, Labyrinth ChollimaNorth Korea2007-Dec 2020 HOTX

1 group listed (1 APT, 0 other, 0 unknown)

Thailand Computer Emergency Response Team (ThaiCERT)
Electronic Transactions Development Agency

Follow us on

Facebook Twitter

Report incidents

Telephone +66 (0)2-123-1234
E-mail report@thaicert.or.th
PGP Download PGP key