Analysis
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max time kernel
146s -
max time network
151s -
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 11:00
Static task
static1
Behavioral task
behavioral1
Sample
ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe
Resource
win10v2004-20240508-en
General
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Target
ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe
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Size
2.0MB
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MD5
88a5170147422c7d87114005ce2518a4
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SHA1
f812c206247978f25d15737b384f5f0e18143253
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SHA256
ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6
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SHA512
aeb60cf8be8564c2ee635752d7478e715cb42d75d1ffdd99bfe47cf0d0d2fb665bcfbb4d25fee29f1c30fc1cc78f3c58b0ee59f11039c5bd8fb3b0215582d85c
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SSDEEP
49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ
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/1140-1-0x0000000004050000-0x0000000004199000-memory.dmp family_vidar_v7 behavioral2/memory/776-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/776-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/776-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/776-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/776-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/776-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/776-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat78AA.tmppid process 776 kat78AA.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:
ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exedescription pid process target process PID 1140 set thread context of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat78AA.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat78AA.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat78AA.tmppid process 776 kat78AA.tmp 776 kat78AA.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exedescription pid process target process PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp PID 1140 wrote to memory of 776 1140 ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe kat78AA.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe"C:\Users\Admin\AppData\Local\Temp\ede59b8cb07cb63e7c79b9d05a8e32f50835e9c7b9aa1a8a5f9a6800041ebac6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat78AA.tmpC:\Users\Admin\AppData\Local\Temp\kat78AA.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\kat78AA.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/776-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/776-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/776-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/776-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/776-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/776-17-0x000000001B800000-0x000000001BA5F000-memory.dmpFilesize
2.4MB
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memory/776-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/776-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1140-0-0x0000000002470000-0x0000000002471000-memory.dmpFilesize
4KB
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memory/1140-1-0x0000000004050000-0x0000000004199000-memory.dmpFilesize
1.3MB
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memory/1140-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB