General
- Target 2026-08-12_15dcf0629e88b186637b5c57c65c3085_quasar-rat
- Size 13.3MB
- Sample260812-kybhcsdm91
- SHA256 b251d724d77129b6440020def6a96cbee0bf8260219d0a585b69c1027d6f7609
- MD5 15dcf0629e88b186637b5c57c65c3085
- SHA1 10efb71916180d32e510265e227dd3a40952fa6b
- SHA512 e885b5cde0292753894491c656f007afcb2c03fbe6195bedcf4787fc120fe97888919aa5bfdfdf46087bdcb36cbea4ad53acedb28e1e5a8e7779ce970f5cd82c
- SSDEEP 196608:PeA8nAfjfeHKu1zyNpKmEqnrpnBL07OCZ4rXUV5NwvX:PeAjfeR1zYKBP7OCewV5NOX
- TLSH T175E64B4777874DE6CCC22BB4B9AF23399730ED319E690B2BA58C91345C532DCAD1AB50
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-12_15dcf0629e88b186637b5c57c65c3085_quasar-rat.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-12_15dcf0629e88b186637b5c57c65c3085_quasar-rat.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target 2026-08-12_15dcf0629e88b186637b5c57c65c3085_quasar-rat
- Size 13.3MB
- SHA256 b251d724d77129b6440020def6a96cbee0bf8260219d0a585b69c1027d6f7609
- MD5 15dcf0629e88b186637b5c57c65c3085
- SHA1 10efb71916180d32e510265e227dd3a40952fa6b
- SHA512 e885b5cde0292753894491c656f007afcb2c03fbe6195bedcf4787fc120fe97888919aa5bfdfdf46087bdcb36cbea4ad53acedb28e1e5a8e7779ce970f5cd82c
- SSDEEP 196608:PeA8nAfjfeHKu1zyNpKmEqnrpnBL07OCZ4rXUV5NwvX:PeAjfeR1zYKBP7OCewV5NOX
- TLSH T175E64B4777874DE6CCC22BB4B9AF23399730ED319E690B2BA58C91345C532DCAD1AB50
- 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