Analysis
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max time kernel
92s -
max time network
93s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-05-2024 02:02
Static task
static1
Behavioral task
behavioral1
Sample
70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe
Resource
win10v2004-20240226-en
General
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Target
70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe
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Size
2.1MB
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MD5
fdaefb75abfe2ee10097cb3754c2a93b
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SHA1
f531860142458b949f57069fdcc5c3936fa45e2a
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SHA256
70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4
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SHA512
459b27842e64c1c4c63e8970cab961876e69e1d4db4c03982802a69e6e26b9801892da038d869822fa15bbf6a166999510a96b7412bd9418642ab0c9bd3853f8
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SSDEEP
49152:N6uDuaS9refmIJtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9jItIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/4980-2-0x0000000004030000-0x0000000004179000-memory.dmp family_vidar_v7 behavioral2/memory/4692-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4692-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4692-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4692-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4692-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4692-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4692-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4258.tmppid process 4692 kat4258.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:
70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exedescription pid process target process PID 4980 set thread context of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4258.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4258.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4258.tmppid process 4692 kat4258.tmp 4692 kat4258.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exedescription pid process target process PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp PID 4980 wrote to memory of 4692 4980 70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe kat4258.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe"C:\Users\Admin\AppData\Local\Temp\70a27192aba61792e947a2d97d836c966932f94b9dd410c03603bb6f1b29dfc4.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Users\Admin\AppData\Local\Temp\kat4258.tmpC:\Users\Admin\AppData\Local\Temp\kat4258.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4692
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f