Analysis
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max time kernel
93s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24/05/2024, 04:49
Static task
static1
Behavioral task
behavioral1
Sample
abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe
Resource
win7-20240220-en
General
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Target
abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe
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Size
2.0MB
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MD5
d92c985ddae73d2e1407ca76e682f2fa
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SHA1
8a04a22fc7d7536675af4ae5cdfbba12612751d0
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SHA256
abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a
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SHA512
9e83c8e1b5cf7e3ac2d6fb342923f17d15ca6677301ae8ea5fe8a4201a68b37951bc17befc4e06b3fbfa376204b3c1c2d8ddcd2a07173a9bf47971aea0cc7992
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SSDEEP
49152:IFno/jfQJtTF+TxMoxc1TU+j+dAzGkiT:IFno/jotIuoITsdZT
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199686524322
https://t.me/k0mono
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15 Ddg/17.4.1
Signatures
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Detect Vidar Stealer 8 IoCs
resource yara_rule behavioral2/memory/1416-1-0x0000000004070000-0x00000000041B9000-memory.dmp family_vidar_v7 behavioral2/memory/4484-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4484-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4484-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4484-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4484-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4484-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4484-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 4484 kat593C.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 1416 set thread context of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 -
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 kat593C.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4484 kat593C.tmp 4484 kat593C.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84 PID 1416 wrote to memory of 4484 1416 abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe"C:\Users\Admin\AppData\Local\Temp\abaefa482e3cd3b2a498a83530a0418e32078e81d975c69b13dfd8dd12213b5a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1416 -
C:\Users\Admin\AppData\Local\Temp\kat593C.tmpC:\Users\Admin\AppData\Local\Temp\kat593C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4484
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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