General
-
Target
6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2
-
Size
598KB
-
Sample
220512-n36qvagcdk
-
MD5
164cc91241694bba1ddee440c96530c1
-
SHA1
0354ca6a88e4e97d92366b119bb06c78ecb4f1d7
-
SHA256
6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2
-
SHA512
223294d6ccb00ef6a2c25d972729f3226eff96647ec769fa0364500f4d145750d4913df6b9d03ddb4a20a2252fb5fa84a4d88d42b4de1e664295f2015b867f0a
Static task
static1
Behavioral task
behavioral1
Sample
6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2.exe
Resource
win7-20220414-en
Malware Config
Extracted
quasar
2.1.0.0
windows security
vilvaraj-32652.portmap.io:32652
VNM_MUTEX_XaCO2YtLAsadylDHBP
-
encryption_key
eKgGUbCubcSIafuOAN5V
-
install_name
windows security.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
windows security
-
subdirectory
SubDir
Targets
-
-
Target
6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2
-
Size
598KB
-
MD5
164cc91241694bba1ddee440c96530c1
-
SHA1
0354ca6a88e4e97d92366b119bb06c78ecb4f1d7
-
SHA256
6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2
-
SHA512
223294d6ccb00ef6a2c25d972729f3226eff96647ec769fa0364500f4d145750d4913df6b9d03ddb4a20a2252fb5fa84a4d88d42b4de1e664295f2015b867f0a
-
Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
-
Quasar Payload
-
suricata: ET MALWARE Common RAT Connectivity Check Observed
suricata: ET MALWARE Common RAT Connectivity Check Observed
-
suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 3
suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 3
-
Executes dropped EXE
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Loads dropped DLL
-
Adds Run key to start application
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Suspicious use of SetThreadContext
-