Analysis
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max time kernel
134s -
max time network
106s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 03:42
Static task
static1
Behavioral task
behavioral1
Sample
5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe
Resource
win7-20240221-en
General
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Target
5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe
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Size
1.8MB
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MD5
16e6462f5eda4abaf006fe402469fc4e
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SHA1
334deeeda9415d9dc933ec17faf98e58dc3cf875
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SHA256
5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e
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SHA512
0c788196898a6e2e8656136939b6682cba9fd2f1c306022343125bad3722a8ab061b529c4e9ace881f278e8ca38f397a04cd5637898b6045975dc7fa2bc30433
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SSDEEP
24576:FBfuZfeq6sJO6hTdtTF+TxMoxQH1Tj4wtjYZH1DmoYYzi3WH45yv+OueSJhm9e:F7qFTJtTF+TxMoxc1TU+j+dAzGwlrh
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/1996-2-0x0000000004010000-0x0000000004159000-memory.dmp family_vidar_v7 behavioral2/memory/1968-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1968-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1968-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1968-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1968-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1968-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1968-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3E41.tmppid process 1968 kat3E41.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:
5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exedescription pid process target process PID 1996 set thread context of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3E41.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3E41.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3E41.tmppid process 1968 kat3E41.tmp 1968 kat3E41.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exedescription pid process target process PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp PID 1996 wrote to memory of 1968 1996 5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe kat3E41.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe"C:\Users\Admin\AppData\Local\Temp\5dbb87520c278ce78dabbfc580ad7d068c6182af9f26ab87502f4166e400039e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3E41.tmpC:\Users\Admin\AppData\Local\Temp\kat3E41.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\kat3E41.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1968-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1968-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1968-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1968-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1968-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1968-17-0x000000001B7D0000-0x000000001BA2F000-memory.dmpFilesize
2.4MB
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memory/1968-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1968-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1996-0-0x0000000002240000-0x0000000002241000-memory.dmpFilesize
4KB
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memory/1996-2-0x0000000004010000-0x0000000004159000-memory.dmpFilesize
1.3MB
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memory/1996-10-0x0000000000400000-0x00000000005D1000-memory.dmpFilesize
1.8MB