Analysis
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max time kernel
129s -
max time network
99s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23/05/2024, 03:35
Static task
static1
Behavioral task
behavioral1
Sample
bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe
Resource
win10v2004-20240508-en
General
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Target
bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe
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Size
2.0MB
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MD5
b7a9aba3e3f217e637995dbcfa45a66e
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SHA1
531d1b1cc7614ca4009ddf60e66f81879612f33c
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SHA256
bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58
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SHA512
88922dc22725deea03059d46b0ba1e6e8bfcb9368887b973eb96b1b0a17260da164d0c4ebc737d1ffe5d08e90a44a68d69472ce4ec69e7685d290c16cbd0fbf6
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SSDEEP
49152:7QzHt472DKJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtotIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
resource yara_rule behavioral1/memory/4904-1-0x0000000004130000-0x0000000004279000-memory.dmp family_vidar_v7 behavioral1/memory/4556-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4556-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 4556 kat447B.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 4904 set thread context of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 -
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 kat447B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4556 kat447B.tmp 4556 kat447B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84 PID 4904 wrote to memory of 4556 4904 bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe"C:\Users\Admin\AppData\Local\Temp\bf6ce5047c02ad1f96bf2c57747abccfcdce2137b6d15ff54cbd7fb04bc8dc58.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4904 -
C:\Users\Admin\AppData\Local\Temp\kat447B.tmpC:\Users\Admin\AppData\Local\Temp\kat447B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4556
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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