General
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Target
4bb4ff4b1fa6c7e122557d8a55826242.bin
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Size
22.9MB
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Sample
240514-bzpa6sdh2t
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MD5
a405008b6ea5c1d821ab8e9702453413
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SHA1
f147776885e37924814a77e45c07e7e4a155a1c1
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SHA256
2c5e255cb479124aa195cda308d774518bf0a384858ccd0b72aac17baa761a05
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SHA512
f46864311fee62f120b6e04a0cdad4be57794b2825e8bbc3359253548220d785340c1465ce66755d8a83296a2a0341879846f58b9a825e1b876f4408fa6ea79a
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SSDEEP
393216:vktMHnDnA+bkb08yjRM+lKVGHJ8lC3GTcyDpkjjOW85+wYEAa37mK+YmupbEbSx:vktMHjA+/BzlKVdFv1UiYIAa37mK+Ytl
Static task
static1
Behavioral task
behavioral1
Sample
a45c739b9f551d8633053381950f20a617ae2fe9c1d96d4f433d8ffa3015fb5e.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
a45c739b9f551d8633053381950f20a617ae2fe9c1d96d4f433d8ffa3015fb5e.exe
Resource
win10v2004-20240508-en
Malware Config
Extracted
quasar
1.4.1
Webhook
bardu3662.duckdns.org:9733
afa58199-2aae-4e08-8ef4-8e4ef39bc0aa
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encryption_key
080342EF5ED2B5D16317695CC4327BF2FFC034AA
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install_name
RuntimeBroker.exe
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log_directory
Logs
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reconnect_delay
1000
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startup_key
Update
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subdirectory
ApplicationFrameHost
Targets
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Target
a45c739b9f551d8633053381950f20a617ae2fe9c1d96d4f433d8ffa3015fb5e.exe
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Size
24.6MB
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MD5
4bb4ff4b1fa6c7e122557d8a55826242
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SHA1
241427d58cc7787fd24536821080244f344ddc74
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SHA256
a45c739b9f551d8633053381950f20a617ae2fe9c1d96d4f433d8ffa3015fb5e
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SHA512
4b6e380061a3f05583ad2e14e791b8c61d237e92a45d0abbadcc24fbe7aae3b63c18a02d665a5e2d8cd0e05dee29779f24658f585d9f1272e4fd9bc0532fae16
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SSDEEP
786432:ZXiuaHp1WxVMCLvYEpd3hA/IlF1ZAhfk:vaHfsVDw0DAA31ZAhf
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Quasar payload
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Creates new service(s)
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Drops file in Drivers directory
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Legitimate hosting services abused for malware hosting/C2
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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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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
2PowerShell
2Scheduled Task/Job
1System Services
2Service Execution
2Persistence
Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Privilege Escalation
Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1