Analysis
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max time kernel
106s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
04-06-2024 01:10
Static task
static1
Behavioral task
behavioral1
Sample
4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe
Resource
win10v2004-20240508-en
General
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Target
4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe
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Size
1.8MB
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MD5
812f4db5549e8ad01ac5d6c0935a1ffe
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SHA1
57b29e82393a942b0592f9bc2aecc7621fb84d32
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SHA256
4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924
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SHA512
34242d653d14b566d23c0cc02eac077bd812010b5b349eb44825d6c30521ed42d3daec7f7ef7996eb05ba1916373a1f53ef3a219d58477ec0577fc0245b68130
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SSDEEP
24576:W7YfUB7F1931tbgYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbgYa8aesY3Ot4N7G/
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/224-2-0x0000000002B90000-0x0000000002CDC000-memory.dmp family_vidar_v7 behavioral2/memory/2368-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2368-10-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2368-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2368-20-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2368-21-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2368-38-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2368-39-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7AAE.tmppid process 2368 kat7AAE.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:
4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exedescription pid process target process PID 224 set thread context of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7AAE.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7AAE.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat7AAE.tmppid process 2368 kat7AAE.tmp 2368 kat7AAE.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exedescription pid process target process PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp PID 224 wrote to memory of 2368 224 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe kat7AAE.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe"C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmpC:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2368
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f