Analysis
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max time kernel
92s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-05-2024 04:43
Static task
static1
Behavioral task
behavioral1
Sample
119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe
Resource
win10v2004-20240426-en
General
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Target
119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe
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Size
2.0MB
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MD5
fcd7a545ede25912cd98adf414edb281
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SHA1
471ada2f626fe244f023de1ab60154936f5a95f6
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SHA256
119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1
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SHA512
dd4fa2c73340c633687f7db593f6bfb07aae39ab52b36d0effc5d688bbc74399f8d3859a5007de8421a88a9f2ec9ca7a6a5cf7cf371231e04755990709658a3c
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SSDEEP
49152:OePpQE9JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE9tIuoITsdZ
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/4268-2-0x0000000004200000-0x0000000004349000-memory.dmp family_vidar_v7 behavioral2/memory/1700-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat511D.tmppid process 1700 kat511D.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:
119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exedescription pid process target process PID 4268 set thread context of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat511D.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat511D.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat511D.tmppid process 1700 kat511D.tmp 1700 kat511D.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exedescription pid process target process PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp PID 4268 wrote to memory of 1700 4268 119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe kat511D.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe"C:\Users\Admin\AppData\Local\Temp\119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4268 -
C:\Users\Admin\AppData\Local\Temp\kat511D.tmpC:\Users\Admin\AppData\Local\Temp\kat511D.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1700
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat511D.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1700-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-22-0x000000001B890000-0x000000001BAEF000-memory.dmpFilesize
2.4MB
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memory/1700-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4268-0-0x00000000025B0000-0x00000000025B1000-memory.dmpFilesize
4KB
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memory/4268-2-0x0000000004200000-0x0000000004349000-memory.dmpFilesize
1.3MB
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memory/4268-10-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB