Analysis
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max time kernel
147s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 16:59
Static task
static1
Behavioral task
behavioral1
Sample
f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe
Resource
win10v2004-20240508-en
General
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Target
f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe
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Size
2.0MB
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MD5
299cc553b1d53f6be0ba652d50de8718
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SHA1
cb6ca0561f70958051e3c1dbf15150d3f1b224d5
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SHA256
f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2
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SHA512
a4e164c9628bc1c1e7eb3eea71e387a69d6a77f71d99addaa78cee9dad72e047e96ecb643be5548f8924cc50fb57d8f919a5811bf2ba7d2a9af2f44c18b9d874
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SSDEEP
49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ
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 behavioral2/memory/2492-2-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral2/memory/4004-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4004-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4004-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4004-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4004-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4004-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4004-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4D45.tmppid process 4004 kat4D45.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:
f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exedescription pid process target process PID 2492 set thread context of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4D45.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4D45.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4D45.tmppid process 4004 kat4D45.tmp 4004 kat4D45.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exedescription pid process target process PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp PID 2492 wrote to memory of 4004 2492 f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe kat4D45.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe"C:\Users\Admin\AppData\Local\Temp\f0186aad8089bd76f4393699c73287d9543b1bd3a371242f45c11410865977f2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Users\Admin\AppData\Local\Temp\kat4D45.tmpC:\Users\Admin\AppData\Local\Temp\kat4D45.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4004
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4D45.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2492-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
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memory/2492-2-0x0000000004080000-0x00000000041C9000-memory.dmpFilesize
1.3MB
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memory/2492-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4004-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4004-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4004-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4004-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4004-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4004-22-0x00000000260E0000-0x000000002633F000-memory.dmpFilesize
2.4MB
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memory/4004-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4004-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB