Analysis
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max time kernel
91s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
30-06-2024 16:17
Static task
static1
Behavioral task
behavioral1
Sample
f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe
Resource
win10v2004-20240508-en
General
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Target
f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe
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Size
2.2MB
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MD5
d66fe6aa590dbd009f6f696c485b3f91
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SHA1
58c9c6e68d9c5878f4517ef9c50b06b941a770e2
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SHA256
f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b
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SHA512
70b61d068a17e4135d1a5a31ded33afa5c5d8fc6a36f0b8b71f6e8aef5dd087897e63f3d85c6eae83477dfe2aed1cb4f87545b7cc2a9d11418ffe533516e84c4
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXnBU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPe21tuuIeNHYGY0LzjsJxK
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/4236-1-0x0000000004150000-0x0000000004263000-memory.dmp family_vidar_v7 behavioral1/memory/2916-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2916-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2916-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2916-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2916-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2916-40-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2916-41-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat52A4.tmppid process 2916 kat52A4.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:
f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exedescription pid process target process PID 4236 set thread context of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat52A4.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat52A4.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat52A4.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat52A4.tmppid process 2916 kat52A4.tmp 2916 kat52A4.tmp 2916 kat52A4.tmp 2916 kat52A4.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exedescription pid process target process PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp PID 4236 wrote to memory of 2916 4236 f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe kat52A4.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe"C:\Users\Admin\AppData\Local\Temp\f252eae8007fe2e271ec706aaf109e01b95b57d8544d7a76e21790bbfdfc0d8b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat52A4.tmpC:\Users\Admin\AppData\Local\Temp\kat52A4.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat52A4.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2916-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2916-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2916-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2916-22-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2916-23-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2916-25-0x00000000226F0000-0x000000002294F000-memory.dmpFilesize
2.4MB
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memory/2916-40-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2916-41-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4236-0-0x00000000023E0000-0x00000000023E1000-memory.dmpFilesize
4KB
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memory/4236-1-0x0000000004150000-0x0000000004263000-memory.dmpFilesize
1.1MB
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memory/4236-6-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB