Analysis
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max time kernel
134s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
07-06-2024 08:23
Static task
static1
Behavioral task
behavioral1
Sample
4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe
Resource
win10v2004-20240508-en
General
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Target
4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe
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Size
2.5MB
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MD5
9fa215b1fe2fd1547f3a3d4f78c444f2
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SHA1
e3e49c4dfbdc180b7a0b190b798989a5ba3df63c
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SHA256
4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac
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SHA512
08fc7e4c22b8d087c2b36f1f22792dc306c667f28c080e2c5f879e6d700f7ccf4c4bb34e22b3cafdaaca89e88e011d58eb542b2f7666cfc7f35b923f7cbd4cce
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SSDEEP
49152:Zcm4081qpZBUbHEmJDsEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtJfAw07QLyLn
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/r8z0l
https://steamcommunity.com/profiles/76561199698764354
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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 behavioral1/memory/2328-2-0x0000000002A20000-0x0000000002B83000-memory.dmp family_vidar_v7 behavioral1/memory/3416-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3416-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3416-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3416-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3416-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3416-40-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3416-41-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat42B6.tmppid process 3416 kat42B6.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:
4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exedescription pid process target process PID 2328 set thread context of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat42B6.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat42B6.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat42B6.tmppid process 3416 kat42B6.tmp 3416 kat42B6.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exedescription pid process target process PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp PID 2328 wrote to memory of 3416 2328 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe kat42B6.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe"C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2328 -
C:\Users\Admin\AppData\Local\Temp\kat42B6.tmpC:\Users\Admin\AppData\Local\Temp\kat42B6.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3416
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f