General
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Target
fcea44ccdda5c376d688d6ec36914763bdc510e9816a5ac68725ca8a267f1c5e
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Size
596KB
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Sample
221206-vcblcahg3t
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MD5
033f741547a48edc8023c876ff7dcfb6
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SHA1
debe8fced7d766edbec240f270140a4d1c2f7b14
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SHA256
fcea44ccdda5c376d688d6ec36914763bdc510e9816a5ac68725ca8a267f1c5e
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SHA512
0ff4fe58fb06c48ad3810c744290953837793c39d08d5fc3971210649bc2d1f9408ae782a15d63b933d1e16acd1fc18bb1e7037f1d6b1e2e2cfc43424403c5f5
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SSDEEP
12288:gWfcA5sok1rJNAMPctYC/9HZ3eEAmw3OI:3eoiNL4p/r3eE/+
Static task
static1
Behavioral task
behavioral1
Sample
fcea44ccdda5c376d688d6ec36914763bdc510e9816a5ac68725ca8a267f1c5e.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
fcea44ccdda5c376d688d6ec36914763bdc510e9816a5ac68725ca8a267f1c5e.exe
Resource
win10v2004-20221111-en
Malware Config
Targets
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Target
fcea44ccdda5c376d688d6ec36914763bdc510e9816a5ac68725ca8a267f1c5e
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Size
596KB
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MD5
033f741547a48edc8023c876ff7dcfb6
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SHA1
debe8fced7d766edbec240f270140a4d1c2f7b14
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SHA256
fcea44ccdda5c376d688d6ec36914763bdc510e9816a5ac68725ca8a267f1c5e
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SHA512
0ff4fe58fb06c48ad3810c744290953837793c39d08d5fc3971210649bc2d1f9408ae782a15d63b933d1e16acd1fc18bb1e7037f1d6b1e2e2cfc43424403c5f5
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SSDEEP
12288:gWfcA5sok1rJNAMPctYC/9HZ3eEAmw3OI:3eoiNL4p/r3eE/+
Score10/10-
ISR Stealer
ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
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ISR Stealer payload
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Executes dropped EXE
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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 SetThreadContext
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