Analysis
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max time kernel
89s -
max time network
127s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 06:53
Static task
static1
Behavioral task
behavioral1
Sample
3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe
Resource
win10v2004-20240508-en
General
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Target
3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe
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Size
2.2MB
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MD5
d585054e29addfe245e146dfc2dbd77d
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SHA1
cc8acdf721aca4bc280bf0bb71dbd8113ae60e92
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SHA256
3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6
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SHA512
7328bad3c55c7b35522e900eceb0e53da48025062f0f552384915b7fe6513b3b0d4d52be040e92f02123438d5b88c4f5ce5dab180fbb5aac5e442685a08a21b6
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SSDEEP
49152:qpjNvr9ySAOmw4FHHO+SASagXkJr4MDkUwm:qpjNp7p4FHH8n5A
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2556-1-0x0000000002B30000-0x0000000002C40000-memory.dmp family_vidar_v7 behavioral2/memory/4736-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4736-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4736-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4736-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4736-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4736-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4736-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat6503.tmppid process 4736 kat6503.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:
3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exedescription pid process target process PID 2556 set thread context of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6503.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6503.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat6503.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat6503.tmppid process 4736 kat6503.tmp 4736 kat6503.tmp 4736 kat6503.tmp 4736 kat6503.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exedescription pid process target process PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp PID 2556 wrote to memory of 4736 2556 3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe kat6503.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe"C:\Users\Admin\AppData\Local\Temp\3916d1536994faa023cd09964cdea305e807f608e59ff293a984fe47c4d655f6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2556 -
C:\Users\Admin\AppData\Local\Temp\kat6503.tmpC:\Users\Admin\AppData\Local\Temp\kat6503.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4736
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f