Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 19:01
Static task
static1
Behavioral task
behavioral1
Sample
1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe
Resource
win10v2004-20240508-en
General
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Target
1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe
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Size
2.0MB
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MD5
002c52421c360eea5a7fb1b0f90baa23
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SHA1
3d4b64ba4640c49231a74e74887ea1c1684a7c23
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SHA256
1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f
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SHA512
ffe7a6efc1f3ca9498d402d1055ade9cc81ee97da8c5828bbba12a909c764aed2c8faffa146e7a35a7325d32318eedcf06f8c2ce2ec85979fc7e3fb212a0e30f
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SSDEEP
49152:s4K3x1vU2JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex182tIuoITsdZ
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/5064-1-0x0000000004020000-0x0000000004169000-memory.dmp family_vidar_v7 behavioral1/memory/4556-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat470B.tmppid process 4556 kat470B.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:
1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exedescription pid process target process PID 5064 set thread context of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat470B.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat470B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat470B.tmppid process 4556 kat470B.tmp 4556 kat470B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exedescription pid process target process PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp PID 5064 wrote to memory of 4556 5064 1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe kat470B.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe"C:\Users\Admin\AppData\Local\Temp\1b73c39902729b08f9c84dde5426bd0768f1270294c7739dd371144165223c0f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5064 -
C:\Users\Admin\AppData\Local\Temp\kat470B.tmpC:\Users\Admin\AppData\Local\Temp\kat470B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4556
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat470B.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/4556-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4556-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4556-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4556-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4556-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4556-17-0x000000001B720000-0x000000001B97F000-memory.dmpFilesize
2.4MB
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memory/4556-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4556-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5064-0-0x0000000002380000-0x0000000002381000-memory.dmpFilesize
4KB
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memory/5064-1-0x0000000004020000-0x0000000004169000-memory.dmpFilesize
1.3MB
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memory/5064-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB