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Analysis
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max time kernel
101s -
max time network
103s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
12/06/2024, 01:02
Static task
static1
Behavioral task
behavioral1
Sample
924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe
Resource
win10v2004-20240226-en
General
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Target
924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe
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Size
1.6MB
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MD5
7a72f47332304084eb8dada6d1ea82d0
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SHA1
869c5365b46530bdeeb319a2956b2aff284b99e2
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SHA256
924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc
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SHA512
edf4a0357886c02218a4d88d53177f99e26fc46a372c3558ae301055b53ee49c006681024c7e5005a3b8154bc20d4cbb734ba446de5bf03a3bf18d06c7037517
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SSDEEP
24576:spM5863IGfTAVpalB1UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B1UkxVVChjHZQs
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 17 IoCs
resource yara_rule behavioral2/memory/4676-1-0x0000000004040000-0x0000000004150000-memory.dmp family_vidar_v7 behavioral2/memory/4432-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-26-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-34-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-51-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-52-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-63-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-64-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-65-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4432-68-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 4432 kat3E32.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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 4676 set thread context of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 kat3E32.tmp -
Delays execution with timeout.exe 1 IoCs
pid Process 780 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4432 kat3E32.tmp 4432 kat3E32.tmp 4432 kat3E32.tmp 4432 kat3E32.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4676 wrote to memory of 4432 4676 924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe 81 PID 4432 wrote to memory of 2524 4432 kat3E32.tmp 84 PID 4432 wrote to memory of 2524 4432 kat3E32.tmp 84 PID 4432 wrote to memory of 2524 4432 kat3E32.tmp 84 PID 2524 wrote to memory of 780 2524 cmd.exe 86 PID 2524 wrote to memory of 780 2524 cmd.exe 86 PID 2524 wrote to memory of 780 2524 cmd.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe"C:\Users\Admin\AppData\Local\Temp\924377a0aaee56e994f57c5fee8ff1a36ff4e824255276af4a7f4e3b8bd727dc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4676 -
C:\Users\Admin\AppData\Local\Temp\kat3E32.tmpC:\Users\Admin\AppData\Local\Temp\kat3E32.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3E32.tmp" & rd /s /q "C:\ProgramData\KJEGDBKFIJDA" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2524 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:780
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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