Analysis
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max time kernel
148s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
11-02-2025 18:04
Static task
static1
Behavioral task
behavioral1
Sample
37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe
Resource
win10v2004-20250211-en
General
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Target
37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe
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Size
3.8MB
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MD5
1e9f66938dc65ea07276d1eb137ab047
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SHA1
c9d9c8d5069af1689668157fc178bfa947469b97
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SHA256
37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064
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SHA512
00a217e5ce5a9ce4748054dbe82d887a67083f369c59341b9c5459402b871e4180f1455c5197408ea76989dc8e809157cc7c36ead3813048f6313ad226537d81
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SSDEEP
98304:Zspwe8EJfdMgg3akDFJBXy2vRfcSpwxzYs7kjhn/JU:zEJfOhqI+2ZU0IBkjhnRU
Malware Config
Extracted
cryptbot
http://home.elvnuuu11pn.top/ulvJaKQlXazlgWxqjbuu04
Signatures
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Cryptbot family
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Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF VC_redist.x64.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 7488 powershell.exe -
Executes dropped EXE 3 IoCs
pid Process 1920 VC_redist.x86.exe 7620 VC_redist.x64.exe 7872 Method.exe -
Loads dropped DLL 6 IoCs
pid Process 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 7840 taskeng.exe -
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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Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 7872 set thread context of 7636 7872 Method.exe 39 -
Embeds OpenSSL 1 IoCs
Embeds OpenSSL, may be used to circumvent TLS interception.
resource yara_rule behavioral1/files/0x0008000000016d24-2635.dat embeds_openssl -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VC_redist.x64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 7488 powershell.exe 7620 VC_redist.x64.exe 7620 VC_redist.x64.exe 7620 VC_redist.x64.exe 7620 VC_redist.x64.exe 7620 VC_redist.x64.exe 7872 Method.exe 7872 Method.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe 7636 AddInUtil.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1920 VC_redist.x86.exe Token: SeDebugPrivilege 7488 powershell.exe Token: SeDebugPrivilege 7872 Method.exe Token: SeDebugPrivilege 7636 AddInUtil.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1640 wrote to memory of 1920 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 28 PID 1640 wrote to memory of 1920 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 28 PID 1640 wrote to memory of 1920 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 28 PID 1640 wrote to memory of 1920 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 28 PID 7456 wrote to memory of 7488 7456 taskeng.exe 32 PID 7456 wrote to memory of 7488 7456 taskeng.exe 32 PID 7456 wrote to memory of 7488 7456 taskeng.exe 32 PID 1640 wrote to memory of 7620 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 34 PID 1640 wrote to memory of 7620 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 34 PID 1640 wrote to memory of 7620 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 34 PID 1640 wrote to memory of 7620 1640 37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe 34 PID 7840 wrote to memory of 7872 7840 taskeng.exe 38 PID 7840 wrote to memory of 7872 7840 taskeng.exe 38 PID 7840 wrote to memory of 7872 7840 taskeng.exe 38 PID 7872 wrote to memory of 7636 7872 Method.exe 39 PID 7872 wrote to memory of 7636 7872 Method.exe 39 PID 7872 wrote to memory of 7636 7872 Method.exe 39 PID 7872 wrote to memory of 7636 7872 Method.exe 39 PID 7872 wrote to memory of 7636 7872 Method.exe 39 PID 7872 wrote to memory of 7636 7872 Method.exe 39 PID 7872 wrote to memory of 7636 7872 Method.exe 39 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe"C:\Users\Admin\AppData\Local\Temp\37f98020a18c5349391aa444259fbe0e33133b612ea1a52612415a484e761064.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1920
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C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"2⤵
- Enumerates VirtualBox registry keys
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:7620
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C:\Windows\system32\taskeng.exetaskeng.exe {1E5D073E-225C-4A37-9E86-FFD562E8EBF0} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:S4U:1⤵
- Suspicious use of WriteProcessMemory
PID:7456 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABSAG8AYQBtAGkAbgBnAFwAUABlAHIAbQBpAHMAcwBpAG8AbgBTAGUAdABcAE0AZQB0AGgAbwBkAC4AZQB4AGUALABDADoAXABXAGkAbgBkAG8AdwBzAFwATQBpAGMAcgBvAHMAbwBmAHQALgBOAEUAVABcAEYAcgBhAG0AZQB3AG8AcgBrADYANABcAHYANAAuADAALgAzADAAMwAxADkAXABBAGQAZABJAG4AUAByAG8AYwBlAHMAcwAuAGUAeABlACwAQwA6AFwAVQBzAGUAcgBzAFwAQQBkAG0AaQBuAFwAQQBwAHAARABhAHQAYQBcAEwAbwBjAGEAbABcAFQAZQBtAHAAXAAgAC0ARgBvAHIAYwBlADsAIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAHIAbwBjAGUAcwBzACAAQwA6AFwAVwBpAG4AZABvAHcAcwBcAE0AaQBjAHIAbwBzAG8AZgB0AC4ATgBFAFQAXABGAHIAYQBtAGUAdwBvAHIAawA2ADQAXAB2ADQALgAwAC4AMwAwADMAMQA5AFwAQQBkAGQASQBuAFAAcgBvAGMAZQBzAHMALgBlAHgAZQAsAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABSAG8AYQBtAGkAbgBnAFwAUABlAHIAbQBpAHMAcwBpAG8AbgBTAGUAdABcAE0AZQB0AGgAbwBkAC4AZQB4AGUA2⤵
- Command and Scripting Interpreter: PowerShell
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:7488
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C:\Windows\system32\taskeng.exetaskeng.exe {0572D3B0-72FB-4923-8C38-5DE912BC0051} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:7840 -
C:\Users\Admin\AppData\Roaming\PermissionSet\Method.exeC:\Users\Admin\AppData\Roaming\PermissionSet\Method.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:7872 -
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInUtil.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInUtil.exe3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:7636
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8.9MB
MD585ab275356bceff2054ea13155c72784
SHA1993f669feda60c8dcddb7465cf0a7e650c3d9a4d
SHA256940dfe413bd0cd025bf1780d7980385e5eb69391b909c60bfd7f3dda2d563256
SHA512a288df1b95c179c6ae6b0611e1f934354a23a254fb3b374260e594bb02fd29501b34d53f48d94097dc3e110d5882abb833cc9aea7d69e4ebecb4d9fcda6546db
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Filesize
626KB
MD5abab3febb6ef9c10eb9ecdbebbbc128c
SHA1cda81cd8994098f779de7e1510049daf667fb844
SHA2567614eb6c0d335ac226aec01e855d50c683d9b18529dfc066e51b3163c5f54f3d
SHA512855993982c0660f85ac53defd959f56d912897b5f67afb673dfbf4c1b984abf81ba198ed22553c2aa94f239bcd40e45f7400a7c8c87e79f316f7496cd231db9c