Analysis
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max time kernel
194s -
max time network
302s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
30/05/2024, 23:04
Static task
static1
Behavioral task
behavioral1
Sample
6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe
Resource
win7-20240221-en
General
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Target
6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe
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Size
2.0MB
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MD5
fbceb9fb51287ac1664b24aed6fe6027
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SHA1
7655f33dd6456f792933af0ef6b77ada7ef692ef
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SHA256
6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3
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SHA512
2b2397873e1fa7501a2b20d62aa8736c9b6714af22b45ff62071100192f514e14cadc889056b09be3a50e2909609355877a704023e62cec16113655f1cbfab07
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SSDEEP
49152:OePpQEVJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEVtIuoITsdZ
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
resource yara_rule behavioral2/memory/1092-1-0x0000000003EB0000-0x0000000003FF9000-memory.dmp family_vidar_v7 behavioral2/memory/244-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/244-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/244-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/244-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/244-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/244-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/244-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 244 kat662C.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
description pid Process procid_target PID 1092 set thread context of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat662C.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 244 kat662C.tmp 244 kat662C.tmp 244 kat662C.tmp 244 kat662C.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74 PID 1092 wrote to memory of 244 1092 6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe 74
Processes
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C:\Users\Admin\AppData\Local\Temp\6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe"C:\Users\Admin\AppData\Local\Temp\6a1b36a536af1fc526a66c79a6df44cf2d1131e96b59acfbe38fe6bb01f9d5f3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Users\Admin\AppData\Local\Temp\kat662C.tmpC:\Users\Admin\AppData\Local\Temp\kat662C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:244
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f