Analysis
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max time kernel
90s -
max time network
127s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 02:36
Static task
static1
Behavioral task
behavioral1
Sample
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe
Resource
win10v2004-20240508-en
General
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Target
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe
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Size
2.2MB
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MD5
6b29438e2f460436ce9e8f0a48251a24
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SHA1
196eb2f404d04b63de571e7bd2e23f501419591e
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SHA256
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990
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SHA512
db93567bd0ea0354a5cb4544309852b364d479c1147206fbee5f95c99decddc14dbd1d8cbc4b1316fbce1f2289f0e8b19b51cc3fbd9fd63039a8f83429050568
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SSDEEP
49152:qpjNvr9ySAOmw4dHHO+SASagXkJr4MDkUwm:qpjNp7p4dHH8n5A
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 13 IoCs
Processes:
resource yara_rule behavioral2/memory/124-2-0x00000000041B0000-0x00000000042C0000-memory.dmp family_vidar_v7 behavioral2/memory/3012-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-59-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-60-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-71-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-72-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3012-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat607F.tmppid process 3012 kat607F.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:
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exedescription pid process target process PID 124 set thread context of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.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:
kat607F.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat607F.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat607F.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 768 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat607F.tmppid process 3012 kat607F.tmp 3012 kat607F.tmp 3012 kat607F.tmp 3012 kat607F.tmp 3012 kat607F.tmp 3012 kat607F.tmp 3012 kat607F.tmp 3012 kat607F.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exekat607F.tmpcmd.exedescription pid process target process PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 124 wrote to memory of 3012 124 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat607F.tmp PID 3012 wrote to memory of 4832 3012 kat607F.tmp cmd.exe PID 3012 wrote to memory of 4832 3012 kat607F.tmp cmd.exe PID 3012 wrote to memory of 4832 3012 kat607F.tmp cmd.exe PID 4832 wrote to memory of 768 4832 cmd.exe timeout.exe PID 4832 wrote to memory of 768 4832 cmd.exe timeout.exe PID 4832 wrote to memory of 768 4832 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe"C:\Users\Admin\AppData\Local\Temp\42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:124 -
C:\Users\Admin\AppData\Local\Temp\kat607F.tmpC:\Users\Admin\AppData\Local\Temp\kat607F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat607F.tmp" & rd /s /q "C:\ProgramData\HDBGHIDGDGHC" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4832 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:768
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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