Analysis
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max time kernel
129s -
max time network
99s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 03:17
Static task
static1
Behavioral task
behavioral1
Sample
1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe
Resource
win10v2004-20240508-en
General
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Target
1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe
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Size
2.0MB
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MD5
59358f6704a41dcee99862134b1a7e8c
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SHA1
dc9dcd9a410c4c906831221ae35f9e0491942f8e
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SHA256
1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020
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SHA512
ba5e1ab503013fa1243518a5c801c81a222c8643f490662f33333e33a8bb8ae5feaa13551478ceec28afa7c78fbb61ce6ca8ce1ed6323f3127e0142e4e0dbaa8
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SSDEEP
49152:7QzHt472DTJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtZtIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/716-2-0x0000000004140000-0x0000000004289000-memory.dmp family_vidar_v7 behavioral1/memory/4884-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4884-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4884-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4884-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4884-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4884-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4884-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4A09.tmppid process 4884 kat4A09.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:
1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exedescription pid process target process PID 716 set thread context of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4A09.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4A09.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4A09.tmppid process 4884 kat4A09.tmp 4884 kat4A09.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exedescription pid process target process PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp PID 716 wrote to memory of 4884 716 1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe kat4A09.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe"C:\Users\Admin\AppData\Local\Temp\1686f4c3ad60b03cfe3b064ceddbe212ce9e2030aa3126804446bb9d1d8de020.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4A09.tmpC:\Users\Admin\AppData\Local\Temp\kat4A09.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4A09.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/716-0-0x00000000024B0000-0x00000000024B1000-memory.dmpFilesize
4KB
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memory/716-2-0x0000000004140000-0x0000000004289000-memory.dmpFilesize
1.3MB
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memory/716-10-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
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memory/4884-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4884-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4884-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4884-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4884-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4884-17-0x000000001B720000-0x000000001B97F000-memory.dmpFilesize
2.4MB
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memory/4884-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4884-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB