General
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Target
729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6
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Size
1.7MB
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Sample
220503-x1yf5aafd6
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MD5
caea94dab0c8720bd97447d7f9e1ecb8
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SHA1
f3eb2519d75901b6c8fc6107bd354b013e6a0b71
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SHA256
729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6
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SHA512
7752ae0ca4cece6e444af17c50c5cd2226f4c051674286529bf23c4e9f540455e54d969ab2988a7c580beb88be515bf59494b81516a3f9faafe6514123f9ecdb
Static task
static1
Behavioral task
behavioral1
Sample
729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
Resource
win10v2004-20220414-en
Malware Config
Targets
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Target
729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6
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Size
1.7MB
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MD5
caea94dab0c8720bd97447d7f9e1ecb8
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SHA1
f3eb2519d75901b6c8fc6107bd354b013e6a0b71
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SHA256
729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6
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SHA512
7752ae0ca4cece6e444af17c50c5cd2226f4c051674286529bf23c4e9f540455e54d969ab2988a7c580beb88be515bf59494b81516a3f9faafe6514123f9ecdb
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Echelon - DarkStealer Fork
Payload resembles modified variant of Echelon Stealer called DarkStealer.
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Echelon log file
Detects a log file produced by Echelon.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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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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Accesses Microsoft Outlook profiles
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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