Analysis
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max time kernel
132s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 03:55
Static task
static1
Behavioral task
behavioral1
Sample
721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe
Resource
win7-20240221-en
General
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Target
721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe
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Size
2.0MB
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MD5
8accc4604ce0d7566ad62307c0a749b8
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SHA1
9623e6000908f562f3ed13185a519733c4d9c98a
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SHA256
721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf
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SHA512
c29d19dd59dd408eb5f06bfd66d7cd86b24255067707644c72292a285f14cd3c4b9caf73e5adfa216693cb7dc705f6a60bbc96baba2fb0527b1b3e0a3ce79e3a
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SSDEEP
49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ
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/3616-2-0x0000000004070000-0x00000000041B9000-memory.dmp family_vidar_v7 behavioral2/memory/3556-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3556-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3556-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3556-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3556-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3556-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3556-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat789B.tmppid process 3556 kat789B.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:
721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exedescription pid process target process PID 3616 set thread context of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat789B.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat789B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat789B.tmppid process 3556 kat789B.tmp 3556 kat789B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exedescription pid process target process PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp PID 3616 wrote to memory of 3556 3616 721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe kat789B.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe"C:\Users\Admin\AppData\Local\Temp\721ec94d286b6593a781aa70109af30bf6724550ab82a16c6f21efd9f0deffcf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat789B.tmpC:\Users\Admin\AppData\Local\Temp\kat789B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat789B.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3556-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3556-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3556-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3556-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3556-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3556-17-0x000000001B7F0000-0x000000001BA4F000-memory.dmpFilesize
2.4MB
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memory/3556-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3556-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3616-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
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memory/3616-2-0x0000000004070000-0x00000000041B9000-memory.dmpFilesize
1.3MB
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memory/3616-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB