General
- Target 2026-08-12_6ce0df7cc1ff9b5c267a5323c3b6ff27_quasar-rat
- Size 13.3MB
- Sample260812-kmpkvasfpb
- SHA256 f89047790b168e8c90280b08c83b0f7add272cb4b3194c8004a3a24253ae1084
- MD5 6ce0df7cc1ff9b5c267a5323c3b6ff27
- SHA1 e5b434ee1a40465fe6cdc69821eb77cabb185f1b
- SHA512 e4a37b1d12e766b38b3b4fd6c6d08bbdd24f039422ab44c58467eecd614077a3a29dc2d060a21a2d4ed27dc464ecf7e00516d04cbfe3f18cc0d27c54eb6a3070
- SSDEEP 196608:KezhnAfjfeHKu1zyNpKmEqnrpnBL07OCZ4rXUV5NnOU:KezgfeR1zYKBP7OCewV5NOU
- TLSH T143E64B4777874DE6CCC22BB4B9AF23399730ED319E690B2BA58C91345C532DCAD1AB50
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-12_6ce0df7cc1ff9b5c267a5323c3b6ff27_quasar-rat.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-12_6ce0df7cc1ff9b5c267a5323c3b6ff27_quasar-rat.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target 2026-08-12_6ce0df7cc1ff9b5c267a5323c3b6ff27_quasar-rat
- Size 13.3MB
- SHA256 f89047790b168e8c90280b08c83b0f7add272cb4b3194c8004a3a24253ae1084
- MD5 6ce0df7cc1ff9b5c267a5323c3b6ff27
- SHA1 e5b434ee1a40465fe6cdc69821eb77cabb185f1b
- SHA512 e4a37b1d12e766b38b3b4fd6c6d08bbdd24f039422ab44c58467eecd614077a3a29dc2d060a21a2d4ed27dc464ecf7e00516d04cbfe3f18cc0d27c54eb6a3070
- SSDEEP 196608:KezhnAfjfeHKu1zyNpKmEqnrpnBL07OCZ4rXUV5NnOU:KezgfeR1zYKBP7OCewV5NOU
- TLSH T143E64B4777874DE6CCC22BB4B9AF23399730ED319E690B2BA58C91345C532DCAD1AB50
- MD5 SHA1 SHA512 SSDEEP TLSH
Score9/10-
detects Windows exceutables potentially bypassing UAC using eventvwr.exe
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Adds Run key to start application
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Executes a VBScript file via the Windows Script Host.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1