Analysis
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max time kernel
133s -
max time network
297s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
03-06-2024 05:39
Static task
static1
Behavioral task
behavioral1
Sample
833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe
Resource
win7-20240221-en
General
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Target
833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe
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Size
2.4MB
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MD5
d48c6c1e266d629905e7d75426957828
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SHA1
5847b1bc43445ff044c0162e489bdc5ea6d038cf
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SHA256
833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3
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SHA512
0c77e52a80dbcd73377e42ccb7202e94cb157eaab7786c0521b9bd1f811d2587603bf8e9ec4546de632f5842f67be2ae1c43b93054eac0ef4d460c0e00611fd4
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SSDEEP
49152:wQc81KnB/a/hNT/dBYa8aesY3Ot4N7G/:wDta/hNT/dBn0etD/
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
Processes:
resource yara_rule behavioral2/memory/3768-9-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3768-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3768-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1468-2-0x0000000003F30000-0x000000000407C000-memory.dmp family_vidar_v7 behavioral2/memory/3768-25-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3768-26-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3768-43-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/3768-44-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat8472.tmppid Process 3768 kat8472.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:
833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exedescription pid Process procid_target PID 1468 set thread context of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat8472.tmpdescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat8472.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat8472.tmppid Process 3768 kat8472.tmp 3768 kat8472.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exedescription pid Process procid_target PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73 PID 1468 wrote to memory of 3768 1468 833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe 73
Processes
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C:\Users\Admin\AppData\Local\Temp\833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe"C:\Users\Admin\AppData\Local\Temp\833462d44fc8a512642c29ca3aa1808b53281da46f93467bc2143f53937316c3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1468 -
C:\Users\Admin\AppData\Local\Temp\kat8472.tmpC:\Users\Admin\AppData\Local\Temp\kat8472.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3768
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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