Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 03:30
Static task
static1
Behavioral task
behavioral1
Sample
c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe
Resource
win10v2004-20240508-en
General
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Target
c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe
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Size
1.9MB
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MD5
983559afbc213e466dbda2f35af9e077
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SHA1
7847ce3e808fdb3b2bba8e69ba810924dd5b657f
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SHA256
c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389
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SHA512
d3768b30fe37426a88f49dadeb4586bea60431cf7efca9b67ff99ecd86d3dae7ce5effdaad03d91d6845e33c91a0c6d37c1e6ece990691462e660a82c47ef987
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SSDEEP
49152:CdKfTn6vmJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/4236-1-0x0000000004140000-0x0000000004289000-memory.dmp family_vidar_v7 behavioral1/memory/4104-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4104-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4104-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4104-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4104-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4104-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4104-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4798.tmppid process 4104 kat4798.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:
c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exedescription pid process target process PID 4236 set thread context of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4798.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4798.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4798.tmppid process 4104 kat4798.tmp 4104 kat4798.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exedescription pid process target process PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp PID 4236 wrote to memory of 4104 4236 c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe kat4798.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe"C:\Users\Admin\AppData\Local\Temp\c3be5cadeffe656b83d1ae2c785dd0c5ead2401e3d7f49895fa1b74ff03aa389.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Users\Admin\AppData\Local\Temp\kat4798.tmpC:\Users\Admin\AppData\Local\Temp\kat4798.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4104
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4798.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/4104-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4104-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4104-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4104-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4104-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4104-21-0x000000001DC30000-0x000000001DE8F000-memory.dmpFilesize
2.4MB
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memory/4104-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4104-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4236-0-0x00000000023A0000-0x00000000023A1000-memory.dmpFilesize
4KB
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memory/4236-1-0x0000000004140000-0x0000000004289000-memory.dmpFilesize
1.3MB
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memory/4236-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB