Analysis
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max time kernel
134s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 19:20
Static task
static1
Behavioral task
behavioral1
Sample
18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe
Resource
win7-20240508-en
General
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Target
18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe
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Size
2.0MB
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MD5
00bc277228c88586532035228245d771
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SHA1
7b40cc14b6358e2646a1620ff658503f966506ab
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SHA256
18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e
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SHA512
48d8e1f31b1d4f51d6f41122ff9422a5e626de302e4a5ed0f49975be916efa01e6bc2ce733b003a052cc056a5cea2b10391897e7ef1e5aea3034c93e2ccedb29
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SSDEEP
49152:OePpQEFJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEFtIuoITsdZ
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/208-1-0x0000000004010000-0x0000000004159000-memory.dmp family_vidar_v7 behavioral2/memory/3940-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3940-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3940-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Detect binaries embedding considerable number of MFA browser extension IDs. 4 IoCs
Processes:
resource yara_rule behavioral2/memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs behavioral2/memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs -
Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 4 IoCs
Processes:
resource yara_rule behavioral2/memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs behavioral2/memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs -
Detects Windows executables referencing non-Windows User-Agents 7 IoCs
Processes:
resource yara_rule behavioral2/memory/3940-8-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/3940-10-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/3940-4-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
Processes:
resource yara_rule behavioral2/memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 7 IoCs
Processes:
resource yara_rule behavioral2/memory/3940-8-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/3940-10-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/3940-4-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL -
Detects executables containing potential Windows Defender anti-emulation checks 7 IoCs
Processes:
resource yara_rule behavioral2/memory/3940-8-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/3940-10-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/3940-4-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat53BD.tmppid process 3940 kat53BD.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:
18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exedescription pid process target process PID 208 set thread context of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat53BD.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat53BD.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat53BD.tmppid process 3940 kat53BD.tmp 3940 kat53BD.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exedescription pid process target process PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp PID 208 wrote to memory of 3940 208 18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe kat53BD.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe"C:\Users\Admin\AppData\Local\Temp\18e311ef22c8509271918de7fe785dcba0129e247535d74c0c02f28bd6669c0e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:208 -
C:\Users\Admin\AppData\Local\Temp\kat53BD.tmpC:\Users\Admin\AppData\Local\Temp\kat53BD.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3940
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat53BD.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/208-0-0x0000000002280000-0x0000000002281000-memory.dmpFilesize
4KB
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memory/208-1-0x0000000004010000-0x0000000004159000-memory.dmpFilesize
1.3MB
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memory/208-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
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memory/3940-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3940-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3940-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3940-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3940-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3940-20-0x000000001B7E0000-0x000000001BA3F000-memory.dmpFilesize
2.4MB
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memory/3940-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3940-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB