Analysis
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max time kernel
129s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 07:28
Static task
static1
Behavioral task
behavioral1
Sample
22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe
Resource
win10v2004-20240426-en
General
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Target
22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe
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Size
1.8MB
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MD5
577d9088ae8ba0fa8b594c7170a3fb8a
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SHA1
c294e1caeb1886fa2a359e82374d5d7e9bab9a90
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SHA256
22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670
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SHA512
7330bb7c77da527b8a621efad12e9d8abf28ff19f95b9a548dbae9672400a5940860dd1e6f2a2661c47d8caf7f7f75e630959231679887a9409750aac3cc7d9c
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SSDEEP
24576:FBfuZfeq6s5O6hTdtTF+TxMoxQH1Tj4wtjYZH1DmoYYzi3WH45yv+OueSJhm9e:F7qFjJtTF+TxMoxc1TU+j+dAzGwlrh
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/4928-2-0x0000000003FB0000-0x00000000040F9000-memory.dmp family_vidar_v7 behavioral1/memory/800-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/800-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/800-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/800-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/800-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/800-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/800-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3E8F.tmppid process 800 kat3E8F.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exedescription pid process target process PID 4928 set thread context of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3E8F.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3E8F.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3E8F.tmppid process 800 kat3E8F.tmp 800 kat3E8F.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exedescription pid process target process PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp PID 4928 wrote to memory of 800 4928 22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe kat3E8F.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe"C:\Users\Admin\AppData\Local\Temp\22c11915533bd882ef12e3745e1b64591d7e61ef853e9d13abab16acdecb7670.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmpC:\Users\Admin\AppData\Local\Temp\kat3E8F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:800
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3E8F.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/800-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/800-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/800-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/800-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/800-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/800-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/800-23-0x000000001DBB0000-0x000000001DE0F000-memory.dmpFilesize
2.4MB
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memory/800-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4928-0-0x00000000007B0000-0x00000000007B1000-memory.dmpFilesize
4KB
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memory/4928-2-0x0000000003FB0000-0x00000000040F9000-memory.dmpFilesize
1.3MB
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memory/4928-9-0x0000000000400000-0x00000000005D1000-memory.dmpFilesize
1.8MB