General
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Target
sex.exe
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Size
1.1MB
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Sample
241229-aetjqawld1
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MD5
e3032317d2a145c136f058ec87c5fc1d
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SHA1
b48e669d85ea84ba2741f4cf3f14266cfcb018ad
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SHA256
f9d9f113a6820af874e4c3a3ac90c001b157ddfeff76914b1f1e744be1d1f4f7
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SHA512
f5f0625abe1947ef17dccb052bdc5cad7a3fb85b0ca0a2ca74f41dcc810a01a13529c994c7be3377448ed833f71b65bc526923fdc0e18ca63bf0efa8bc14abb8
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SSDEEP
24576:KImw98okVgela0as5CqLVO7XJCjkD3N0HRA:0L5ljasaU
Static task
static1
Behavioral task
behavioral1
Sample
sex.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
sex.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
sex.exe
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Size
1.1MB
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MD5
e3032317d2a145c136f058ec87c5fc1d
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SHA1
b48e669d85ea84ba2741f4cf3f14266cfcb018ad
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SHA256
f9d9f113a6820af874e4c3a3ac90c001b157ddfeff76914b1f1e744be1d1f4f7
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SHA512
f5f0625abe1947ef17dccb052bdc5cad7a3fb85b0ca0a2ca74f41dcc810a01a13529c994c7be3377448ed833f71b65bc526923fdc0e18ca63bf0efa8bc14abb8
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SSDEEP
24576:KImw98okVgela0as5CqLVO7XJCjkD3N0HRA:0L5ljasaU
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Avoslocker Ransomware
Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.
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Avoslocker family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit
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Renames multiple (10409) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Windows Management Instrumentation
1Defense Evasion
Direct Volume Access
1Indicator Removal
2File Deletion
2Modify Registry
1