General
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Target
Steam.exe
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Size
18.7MB
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Sample
240906-tkcb6svgpk
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MD5
c23b73efc9da2aa3c3444ae35918564a
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SHA1
39779ec4720eef4028c5a37d4602b89b5897f7da
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SHA256
1769fae72163ec0fe5227c6437a1bbda92c25a61ed3cca06578fb287a1713328
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SHA512
1dbae3172810142e0b4051cbcbd7807af8dd3f17821f1bfeb1ddd7fca93fdddddf27656ad7f9ca785dc13d170b46fc029bf58a30ded19712dbe48d03e3f153d9
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SSDEEP
393216:oS0SUmxLJ3MAuYDzE7TJToVLEZf0j1BwCB7Sc2mSR7d/AtBy1P:P0SUEcfEqlEVMf8B6m87d/AtBy1P
Behavioral task
behavioral1
Sample
Steam.exe
Resource
win7-20240903-en
Malware Config
Targets
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Target
Steam.exe
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Size
18.7MB
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MD5
c23b73efc9da2aa3c3444ae35918564a
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SHA1
39779ec4720eef4028c5a37d4602b89b5897f7da
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SHA256
1769fae72163ec0fe5227c6437a1bbda92c25a61ed3cca06578fb287a1713328
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SHA512
1dbae3172810142e0b4051cbcbd7807af8dd3f17821f1bfeb1ddd7fca93fdddddf27656ad7f9ca785dc13d170b46fc029bf58a30ded19712dbe48d03e3f153d9
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SSDEEP
393216:oS0SUmxLJ3MAuYDzE7TJToVLEZf0j1BwCB7Sc2mSR7d/AtBy1P:P0SUEcfEqlEVMf8B6m87d/AtBy1P
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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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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Executes dropped EXE
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Loads dropped DLL
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Suspicious use of NtSetInformationThreadHideFromDebugger
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