Analysis
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max time kernel
130s -
max time network
99s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 13:40
Static task
static1
Behavioral task
behavioral1
Sample
5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe
Resource
win10v2004-20240426-en
General
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Target
5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe
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Size
2.4MB
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MD5
36ce412cfbc656e6d41887cf2f886cbf
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SHA1
dfabcc2a24708f75741ac0312147910fff42bc3a
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SHA256
5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc
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SHA512
655b058c3a2a46992a975ec5319d8d7bb36dda9db3eafae4b17e706ff25604416d4c1ae2948bb883eb06faf03fe94899be1b71b8147d7e9edd6d7ad2d04c7a73
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SSDEEP
49152:jxIRJF1HL+VdX68kU6JtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68d6tIuoITsdZ
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/804-1-0x0000000002AD0000-0x0000000002C19000-memory.dmp family_vidar_v7 behavioral1/memory/4760-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4760-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4760-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4760-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4760-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4760-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4760-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4EBC.tmppid process 4760 kat4EBC.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:
5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exedescription pid process target process PID 804 set thread context of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4EBC.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4EBC.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4EBC.tmppid process 4760 kat4EBC.tmp 4760 kat4EBC.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exedescription pid process target process PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp PID 804 wrote to memory of 4760 804 5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe kat4EBC.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe"C:\Users\Admin\AppData\Local\Temp\5b25295e73fd62eb882ed1aa206ea916debe1b702df0e9d1b68351dd830410cc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4EBC.tmpC:\Users\Admin\AppData\Local\Temp\kat4EBC.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4EBC.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/804-0-0x00000000022D0000-0x00000000022D1000-memory.dmpFilesize
4KB
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memory/804-1-0x0000000002AD0000-0x0000000002C19000-memory.dmpFilesize
1.3MB
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memory/804-9-0x0000000000400000-0x0000000000678000-memory.dmpFilesize
2.5MB
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memory/4760-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4760-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4760-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4760-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4760-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4760-17-0x000000001B750000-0x000000001B9AF000-memory.dmpFilesize
2.4MB
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memory/4760-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4760-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB