General
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Target
164cc91241694bba1ddee440c96530c1_JaffaCakes118
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Size
598KB
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Sample
240505-grn84ahc4v
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MD5
164cc91241694bba1ddee440c96530c1
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SHA1
0354ca6a88e4e97d92366b119bb06c78ecb4f1d7
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SHA256
6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2
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SHA512
223294d6ccb00ef6a2c25d972729f3226eff96647ec769fa0364500f4d145750d4913df6b9d03ddb4a20a2252fb5fa84a4d88d42b4de1e664295f2015b867f0a
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SSDEEP
12288:GBU27je2sGbV7LsAlhgLTj9BBnWobokcoyhUvqA2UdpT3:GBUYje21R0b9BBnWooXhQqANpr
Static task
static1
Behavioral task
behavioral1
Sample
164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe
Resource
win10v2004-20240419-en
Malware Config
Extracted
quasar
2.1.0.0
windows security
vilvaraj-32652.portmap.io:32652
VNM_MUTEX_XaCO2YtLAsadylDHBP
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encryption_key
eKgGUbCubcSIafuOAN5V
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install_name
windows security.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
windows security
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subdirectory
SubDir
Targets
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Target
164cc91241694bba1ddee440c96530c1_JaffaCakes118
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Size
598KB
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MD5
164cc91241694bba1ddee440c96530c1
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SHA1
0354ca6a88e4e97d92366b119bb06c78ecb4f1d7
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SHA256
6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2
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SHA512
223294d6ccb00ef6a2c25d972729f3226eff96647ec769fa0364500f4d145750d4913df6b9d03ddb4a20a2252fb5fa84a4d88d42b4de1e664295f2015b867f0a
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SSDEEP
12288:GBU27je2sGbV7LsAlhgLTj9BBnWobokcoyhUvqA2UdpT3:GBUYje21R0b9BBnWooXhQqANpr
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Quasar payload
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1