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Analysis
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max time kernel
92s -
max time network
94s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
31/05/2024, 18:42
Static task
static1
Behavioral task
behavioral1
Sample
6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe
Resource
win10v2004-20240508-en
General
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Target
6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe
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Size
2.4MB
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MD5
34262639f1f50bbfbd2c3cd58dbd792e
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SHA1
f2f7f6478d0e13ff363225f01fda724def03dc74
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SHA256
6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022
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SHA512
e8e25a679dcb2b4eae421c0f7b65cebdad6ccb78c862861c3fe9ec23a1495cf8dc37b347e3d475e0973c1a99a1b102b4dcf4945a57df7d707e64c076434d38bf
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SSDEEP
49152:wQc81KnB/a/hNT/d1Ya8aesY3Ot4N7G/:wDta/hNT/d1n0etD/
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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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
resource yara_rule behavioral2/memory/3308-2-0x0000000004120000-0x000000000426C000-memory.dmp family_vidar_v7 behavioral2/memory/428-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/428-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/428-10-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/428-15-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/428-16-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/428-33-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/428-34-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 428 kat44BA.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
description pid Process procid_target PID 3308 set thread context of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat44BA.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 428 kat44BA.tmp 428 kat44BA.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76 PID 3308 wrote to memory of 428 3308 6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe 76
Processes
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C:\Users\Admin\AppData\Local\Temp\6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe"C:\Users\Admin\AppData\Local\Temp\6580a7173f7fdeac99d9accaa269f4d04627d9dd33384058201ec3c5cd5c4022.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3308 -
C:\Users\Admin\AppData\Local\Temp\kat44BA.tmpC:\Users\Admin\AppData\Local\Temp\kat44BA.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:428
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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