badrabbit

General

Target

230323-gnlc2afg8y
Size

148KB
Sample

240322-r8clqsfb31
MD5

6ed3e3327246cc457d22bb92bd3bba8b
SHA1

1329a6af26f16bb371782ff404d526eec1af9d22
SHA256

72d4375c5fe2533acb5e378ddbd3c55f87c61003a492caffdcb40db988c49503
SHA512

f6c5428adffc10294204e0b068510d91fced02bbe02158a21294ebd5baf249aff0264021cbf7b2b9b37533b1db4daa09113abaa84435f4aa7660849f9b9257f7
SSDEEP

3072:gqMedjZ064qkGda5bFxs0ZUfBpfF6Mq6qUbHlVexC6exvLsBB16UVsh8iSd:+A0rAda5bFxvYptdHl4xV+Efuh

Score

10^/10

Malware Config

Targets

- Target
  
  230323-gnlc2afg8y
- Size
  
  148KB
- MD5
  
  6ed3e3327246cc457d22bb92bd3bba8b
- SHA1
  
  1329a6af26f16bb371782ff404d526eec1af9d22
- SHA256
  
  72d4375c5fe2533acb5e378ddbd3c55f87c61003a492caffdcb40db988c49503
- SHA512
  
  f6c5428adffc10294204e0b068510d91fced02bbe02158a21294ebd5baf249aff0264021cbf7b2b9b37533b1db4daa09113abaa84435f4aa7660849f9b9257f7
- SSDEEP
  
  3072:gqMedjZ064qkGda5bFxs0ZUfBpfF6Mq6qUbHlVexC6exvLsBB16UVsh8iSd:+A0rAda5bFxvYptdHl4xV+Efuh
Score

10^/10

badrabbit mimikatz troldesh bootkit evasion persistence ransomware trojan upx
- BadRabbit
  Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
  ransomware badrabbit
- Mimikatz
  mimikatz is an open source tool to dump credentials on Windows.
  mimikatz
- Modifies WinLogon for persistence
  persistence
- Troldesh, Shade, Encoder.858
  Troldesh is a ransomware spread by malspam.
  ransomware trojan troldesh
- Detects executables containing anti-forensic artifacts of deleting USN change journal. Observed in ransomware
- Detects executables packed with ConfuserEx Mod
- UPX dump on OEP (original entry point)
- mimikatz is an open source tool to dump credentials on Windows
- Disables RegEdit via registry modification
  evasion
- Disables Task Manager via registry modification
  evasion
- Modifies Windows Firewall
  evasion
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Executes dropped EXE
- Loads dropped DLL
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Adds Run key to start application
  persistence
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Legitimate hosting services abused for malware hosting/C2
- Modifies WinLogon
  persistence
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
behavioral1 behavioral2