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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
04/06/2024, 11:36
Static task
static1
Behavioral task
behavioral1
Sample
88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe
Resource
win10v2004-20240426-en
General
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Target
88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe
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Size
1.8MB
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MD5
852ff151baf7e66e6cd635a3dc31b9dc
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SHA1
ddfbf5be8f795acf604f67ae8671fa5b30c7278c
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SHA256
88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad
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SHA512
9ca68fd835508cb994e78bb80176e9d67a552148872318be590f5976114c912a7a232173964346a8c98cb1062df95da3926468898f974f667c62b2dfb60a257b
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SSDEEP
24576:l6z6AnPq5iak02HkBYaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4kBYa8aesY3Ot4N7G/IeUAtK
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
resource yara_rule behavioral1/memory/2136-2-0x0000000002A80000-0x0000000002BCB000-memory.dmp family_vidar_v7 behavioral1/memory/4820-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4820-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4820-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4820-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4820-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4820-31-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4820-32-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 4820 kat44F8.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
description pid Process procid_target PID 2136 set thread context of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat44F8.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4820 kat44F8.tmp 4820 kat44F8.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89 PID 2136 wrote to memory of 4820 2136 88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe"C:\Users\Admin\AppData\Local\Temp\88b0a48e7afd6a3bb4bb6eea66519d0a5c41883a40b05fe1e91f632237545aad.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2136 -
C:\Users\Admin\AppData\Local\Temp\kat44F8.tmpC:\Users\Admin\AppData\Local\Temp\kat44F8.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4820
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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