Analysis
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max time kernel
90s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 07:38
Static task
static1
Behavioral task
behavioral1
Sample
65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe
Resource
win10v2004-20240611-en
General
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Target
65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe
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Size
2.2MB
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MD5
904c6b23cb9ff1f0ca39b699796497d7
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SHA1
b27cac4e2920db8e9f1ecb444bf3e67eef4a9adb
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SHA256
65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823
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SHA512
8efc606bc6d6224872b35d111479e21f39e32517df6675b5657d444c53d9d56b1fcc9d7dc2cd9a8a528ce83382d12a90f68164b351992776cde8964365ada525
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SSDEEP
49152:qpjNvr9ySAOmw4tHHO+SASagXkJr4MDkUwm:qpjNp7p4tHH8n5A
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 behavioral2/memory/4876-1-0x00000000041B0000-0x00000000042C0000-memory.dmp family_vidar_v7 behavioral2/memory/3512-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3512-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3512-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3512-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3512-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3512-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3512-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat33D1.tmppid process 3512 kat33D1.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:
65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exedescription pid process target process PID 4876 set thread context of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat33D1.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat33D1.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat33D1.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat33D1.tmppid process 3512 kat33D1.tmp 3512 kat33D1.tmp 3512 kat33D1.tmp 3512 kat33D1.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exedescription pid process target process PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp PID 4876 wrote to memory of 3512 4876 65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe kat33D1.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe"C:\Users\Admin\AppData\Local\Temp\65f0b4196c7ccc91a910931934ed3ade34b9909e22023a30a5b3ab70c2d3b823.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat33D1.tmpC:\Users\Admin\AppData\Local\Temp\kat33D1.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\kat33D1.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3512-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3512-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3512-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3512-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3512-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3512-27-0x000000002F700000-0x000000002F95F000-memory.dmpFilesize
2.4MB
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memory/3512-42-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3512-43-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4876-0-0x00000000024D0000-0x00000000024D1000-memory.dmpFilesize
4KB
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memory/4876-1-0x00000000041B0000-0x00000000042C0000-memory.dmpFilesize
1.1MB
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memory/4876-10-0x0000000000400000-0x0000000000635000-memory.dmpFilesize
2.2MB