Analysis
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max time kernel
94s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 07:35
Static task
static1
Behavioral task
behavioral1
Sample
e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe
Resource
win10v2004-20240426-en
General
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Target
e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe
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Size
1.9MB
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MD5
3ed2d38ad67b54f452da8b89abecfa85
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SHA1
eef46e547ac1a2afeedba9ed42f39a8df684368f
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SHA256
e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3
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SHA512
adea7da980888e4be8ce3483512ad856fde3e789b2dbddcfee7a26213dfd3a3cfea5c0210894379ebcda2fe528513cdbbf4f824d7b980b9e56faf53d8f07da94
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SSDEEP
49152:CdKfTn6veJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnttIuoITsdZ
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/392-2-0x0000000003FC0000-0x0000000004109000-memory.dmp family_vidar_v7 behavioral1/memory/1456-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1456-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1456-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1456-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1456-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1456-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1456-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat34EB.tmppid process 1456 kat34EB.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:
e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exedescription pid process target process PID 392 set thread context of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat34EB.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat34EB.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat34EB.tmppid process 1456 kat34EB.tmp 1456 kat34EB.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exedescription pid process target process PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp PID 392 wrote to memory of 1456 392 e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe kat34EB.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe"C:\Users\Admin\AppData\Local\Temp\e41c0e8ddb020f1cb6682aca1e8ba6efc66fd622d540e6b04acc7d235a5cc0b3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:392 -
C:\Users\Admin\AppData\Local\Temp\kat34EB.tmpC:\Users\Admin\AppData\Local\Temp\kat34EB.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1456
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat34EB.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/392-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
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memory/392-2-0x0000000003FC0000-0x0000000004109000-memory.dmpFilesize
1.3MB
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memory/392-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/1456-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1456-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1456-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1456-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1456-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1456-17-0x000000001DBE0000-0x000000001DE3F000-memory.dmpFilesize
2.4MB
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memory/1456-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1456-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB