General
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Target
ef5e78ad7c42dba12eef9f71313f40751e9f8b82428968b4ab0684c0d5c63da9
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Size
8.6MB
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Sample
220521-ntqy2ahcak
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MD5
e0e71653d125295cf1348257beba044a
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SHA1
a69734fa7ce3e67a1500c702d1ea606baa4358ee
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SHA256
ef5e78ad7c42dba12eef9f71313f40751e9f8b82428968b4ab0684c0d5c63da9
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SHA512
603afccb5f2644b18eabb705ecf816571f5214896d0b2988aa22743a37fe8419b9bb66ae7e0c011074ba30137fde1e068b0f956c70a3e3083480a2a0c956f4fd
Static task
static1
Behavioral task
behavioral1
Sample
ef5e78ad7c42dba12eef9f71313f40751e9f8b82428968b4ab0684c0d5c63da9.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
ef5e78ad7c42dba12eef9f71313f40751e9f8b82428968b4ab0684c0d5c63da9.exe
Resource
win10v2004-20220414-en
Malware Config
Targets
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Target
ef5e78ad7c42dba12eef9f71313f40751e9f8b82428968b4ab0684c0d5c63da9
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Size
8.6MB
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MD5
e0e71653d125295cf1348257beba044a
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SHA1
a69734fa7ce3e67a1500c702d1ea606baa4358ee
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SHA256
ef5e78ad7c42dba12eef9f71313f40751e9f8b82428968b4ab0684c0d5c63da9
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SHA512
603afccb5f2644b18eabb705ecf816571f5214896d0b2988aa22743a37fe8419b9bb66ae7e0c011074ba30137fde1e068b0f956c70a3e3083480a2a0c956f4fd
Score9/10-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Executes dropped EXE
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Deletes itself
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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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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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