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General
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Target
91d9c067cff61ba23182b0bff60db942
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Size
2.8MB
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Sample
231219-y3r8kaehe2
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MD5
91d9c067cff61ba23182b0bff60db942
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SHA1
8a071fa90f7a9d911eb97e401ac8be29ee831de2
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SHA256
3b1b7d9aae7a192cca60d19ebc5278b52ecc5bb1f9358eb367d56399658d9895
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SHA512
ff01cabd1cc13b546f7aa29fd4dc91fa041e1619ba08d6beab5e78ec23facfe2c88bee6b0e8f4135712a2ecd0bfc2650fe93f793faedd1fa0245fff5022d9ab5
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SSDEEP
49152:k9VBs3aqfvK0jKhHkAVPYzpPTUg999jNzP6uOBUVN9cU8FYdgLw2VasxlBQH/R+p:0BqTuhHkAup4g9HAuHN90KdWLVas2p+p
Static task
static1
Behavioral task
behavioral1
Sample
91d9c067cff61ba23182b0bff60db942.exe
Resource
win7-20231215-en
Malware Config
Extracted
orcus
riskama.online:27016
f6a4eeb99e524916b282d0acc98ad7c8
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autostart_method
Registry
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enable_keylogger
false
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install_path
%programfiles%\Broker\Broker.exe
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reconnect_delay
10000
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registry_keyname
Broker
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taskscheduler_taskname
Broker
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watchdog_path
AppData\OrcusWatchdog.exe
Targets
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Target
91d9c067cff61ba23182b0bff60db942
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Size
2.8MB
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MD5
91d9c067cff61ba23182b0bff60db942
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SHA1
8a071fa90f7a9d911eb97e401ac8be29ee831de2
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SHA256
3b1b7d9aae7a192cca60d19ebc5278b52ecc5bb1f9358eb367d56399658d9895
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SHA512
ff01cabd1cc13b546f7aa29fd4dc91fa041e1619ba08d6beab5e78ec23facfe2c88bee6b0e8f4135712a2ecd0bfc2650fe93f793faedd1fa0245fff5022d9ab5
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SSDEEP
49152:k9VBs3aqfvK0jKhHkAVPYzpPTUg999jNzP6uOBUVN9cU8FYdgLw2VasxlBQH/R+p:0BqTuhHkAup4g9HAuHN90KdWLVas2p+p
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Orcurs Rat Executable
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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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Executes dropped EXE
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Adds Run key to start application
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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