Analysis
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max time kernel
147s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 21:42
Static task
static1
Behavioral task
behavioral1
Sample
19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe
Resource
win10v2004-20240508-en
General
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Target
19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe
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Size
2.2MB
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MD5
779260700d99230fb8759335cde0dc92
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SHA1
e0a347b0ef9ee345b3f11a1ceef8434a258d9d4f
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SHA256
19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e
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SHA512
c1488094f891b987391b103e186fc1f7624b6bfb43c4c14a56f721aebca452ae5f195b6da0b7708d8b84e4fa703963858b3a2bad43c6979fe20b7958b7ec4b84
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXbiU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MP121tuuIeNHYGY0LzjsJxK
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 16 IoCs
Processes:
resource yara_rule behavioral2/memory/1120-1-0x0000000002C10000-0x0000000002D23000-memory.dmp family_vidar_v7 behavioral2/memory/4384-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-77-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-78-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4384-81-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3D57.tmppid process 4384 kat3D57.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
Processes:
19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exedescription pid process target process PID 1120 set thread context of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp -
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 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3D57.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat3D57.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3D57.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 5072 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat3D57.tmppid process 4384 kat3D57.tmp 4384 kat3D57.tmp 4384 kat3D57.tmp 4384 kat3D57.tmp 4384 kat3D57.tmp 4384 kat3D57.tmp 4384 kat3D57.tmp 4384 kat3D57.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exekat3D57.tmpcmd.exedescription pid process target process PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 1120 wrote to memory of 4384 1120 19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe kat3D57.tmp PID 4384 wrote to memory of 3080 4384 kat3D57.tmp cmd.exe PID 4384 wrote to memory of 3080 4384 kat3D57.tmp cmd.exe PID 4384 wrote to memory of 3080 4384 kat3D57.tmp cmd.exe PID 3080 wrote to memory of 5072 3080 cmd.exe timeout.exe PID 3080 wrote to memory of 5072 3080 cmd.exe timeout.exe PID 3080 wrote to memory of 5072 3080 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe"C:\Users\Admin\AppData\Local\Temp\19caf0c6cb3ed75abff85a26dc2c4f2ab685544642bc4bba436b36e3878db89e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3D57.tmpC:\Users\Admin\AppData\Local\Temp\kat3D57.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3D57.tmp" & rd /s /q "C:\ProgramData\DGHIECGCBKFH" & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3D57.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1120-10-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/1120-1-0x0000000002C10000-0x0000000002D23000-memory.dmpFilesize
1.1MB
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memory/1120-0-0x00000000025F0000-0x00000000025F1000-memory.dmpFilesize
4KB
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memory/4384-35-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-36-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-27-0x00000000227B0000-0x0000000022A0F000-memory.dmpFilesize
2.4MB
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memory/4384-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-44-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-45-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-61-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-62-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-73-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-77-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-78-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4384-81-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB