Analysis
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max time kernel
93s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 02:11
Static task
static1
Behavioral task
behavioral1
Sample
1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe
Resource
win10v2004-20240426-en
General
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Target
1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe
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Size
1.9MB
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MD5
e9d68d616fefd57c75daa5438dfa3c29
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SHA1
368f70745504936170ec2e67c92937ec94bc5ddd
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SHA256
1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1
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SHA512
e6c19599d0b8ed5bd56eb5101e5c6e5296b43ec50149c8e7a0ae7569d1985b1c66ed8734bd419f06c6d791f59c63fa35d661e15b1aa95b7f8d634a0e69709c6f
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SSDEEP
49152:CdKfTn6vmJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnVtIuoITsdZ
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/1096-2-0x0000000003FC0000-0x0000000004109000-memory.dmp family_vidar_v7 behavioral1/memory/3632-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3632-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3632-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3632-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3632-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3632-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3632-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3DD4.tmppid process 3632 kat3DD4.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:
1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exedescription pid process target process PID 1096 set thread context of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3DD4.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3DD4.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3DD4.tmppid process 3632 kat3DD4.tmp 3632 kat3DD4.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exedescription pid process target process PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp PID 1096 wrote to memory of 3632 1096 1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe kat3DD4.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe"C:\Users\Admin\AppData\Local\Temp\1eb77eb9de74edc70ec19a1d5907066d1ef7e5c81fd2265833330ea12eb0acd1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Users\Admin\AppData\Local\Temp\kat3DD4.tmpC:\Users\Admin\AppData\Local\Temp\kat3DD4.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3632
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3DD4.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1096-0-0x0000000002240000-0x0000000002241000-memory.dmpFilesize
4KB
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memory/1096-2-0x0000000003FC0000-0x0000000004109000-memory.dmpFilesize
1.3MB
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memory/1096-6-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/3632-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-20-0x000000001B7D0000-0x000000001BA2F000-memory.dmpFilesize
2.4MB
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memory/3632-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB