Analysis
-
max time kernel
122s -
max time network
139s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
27-04-2021 00:12
Static task
static1
Behavioral task
behavioral1
Sample
2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
Resource
win7v20210408
General
-
Target
2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
-
Size
464KB
-
MD5
fe7bc3cd6512f31d48a58caf3e558fee
-
SHA1
5b2e6e541ea6f47e369291396a5d91564ece2eb8
-
SHA256
2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7
-
SHA512
26e5d85f46afcf1434ccce85836014a5adf11728a609e79a8d19d2e6da6f84588eb4b650b5b5184b66bd255cb8d4b0a19bbfad65dc7f058928c7e5bc88f1730b
Malware Config
Signatures
-
CrypVault
Ransomware family which makes encrypted files look like they have been quarantined by AV.
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.exedescription pid pid_target process target process Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2668 796 cmd.exe -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
Processes:
bcdedit.exebcdedit.exepid process 908 bcdedit.exe 624 bcdedit.exe -
Executes dropped EXE 3 IoCs
Processes:
7za.exe6D00D3EF97.exe6D00D3EF97.exepid process 3784 7za.exe 4024 6D00D3EF97.exe 4108 6D00D3EF97.exe -
Processes:
resource yara_rule behavioral2/memory/4108-125-0x0000000000400000-0x0000000000E28000-memory.dmp upx behavioral2/memory/4108-129-0x0000000000400000-0x000000000041A000-memory.dmp upx -
Drops startup file 2 IoCs
Processes:
6D00D3EF97.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VAULT.hta 6D00D3EF97.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VAULT.hta 6D00D3EF97.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
6D00D3EF97.exedescription pid process target process PID 4024 set thread context of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 1000 vssadmin.exe -
Modifies registry class 2 IoCs
Processes:
2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe6D00D3EF97.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings 6D00D3EF97.exe -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 2196 WINWORD.EXE 2196 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
6D00D3EF97.exe6D00D3EF97.exepid process 4024 6D00D3EF97.exe 4024 6D00D3EF97.exe 4108 6D00D3EF97.exe 4108 6D00D3EF97.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
6D00D3EF97.exeWMIC.exevssvc.exedescription pid process Token: SeImpersonatePrivilege 4108 6D00D3EF97.exe Token: SeTcbPrivilege 4108 6D00D3EF97.exe Token: SeChangeNotifyPrivilege 4108 6D00D3EF97.exe Token: SeCreateTokenPrivilege 4108 6D00D3EF97.exe Token: SeBackupPrivilege 4108 6D00D3EF97.exe Token: SeRestorePrivilege 4108 6D00D3EF97.exe Token: SeIncreaseQuotaPrivilege 4108 6D00D3EF97.exe Token: SeAssignPrimaryTokenPrivilege 4108 6D00D3EF97.exe Token: SeIncreaseQuotaPrivilege 4256 WMIC.exe Token: SeSecurityPrivilege 4256 WMIC.exe Token: SeTakeOwnershipPrivilege 4256 WMIC.exe Token: SeLoadDriverPrivilege 4256 WMIC.exe Token: SeSystemProfilePrivilege 4256 WMIC.exe Token: SeSystemtimePrivilege 4256 WMIC.exe Token: SeProfSingleProcessPrivilege 4256 WMIC.exe Token: SeIncBasePriorityPrivilege 4256 WMIC.exe Token: SeCreatePagefilePrivilege 4256 WMIC.exe Token: SeBackupPrivilege 4256 WMIC.exe Token: SeRestorePrivilege 4256 WMIC.exe Token: SeShutdownPrivilege 4256 WMIC.exe Token: SeDebugPrivilege 4256 WMIC.exe Token: SeSystemEnvironmentPrivilege 4256 WMIC.exe Token: SeRemoteShutdownPrivilege 4256 WMIC.exe Token: SeUndockPrivilege 4256 WMIC.exe Token: SeManageVolumePrivilege 4256 WMIC.exe Token: 33 4256 WMIC.exe Token: 34 4256 WMIC.exe Token: 35 4256 WMIC.exe Token: 36 4256 WMIC.exe Token: SeIncreaseQuotaPrivilege 4256 WMIC.exe Token: SeSecurityPrivilege 4256 WMIC.exe Token: SeTakeOwnershipPrivilege 4256 WMIC.exe Token: SeLoadDriverPrivilege 4256 WMIC.exe Token: SeSystemProfilePrivilege 4256 WMIC.exe Token: SeSystemtimePrivilege 4256 WMIC.exe Token: SeProfSingleProcessPrivilege 4256 WMIC.exe Token: SeIncBasePriorityPrivilege 4256 WMIC.exe Token: SeCreatePagefilePrivilege 4256 WMIC.exe Token: SeBackupPrivilege 4256 WMIC.exe Token: SeRestorePrivilege 4256 WMIC.exe Token: SeShutdownPrivilege 4256 WMIC.exe Token: SeDebugPrivilege 4256 WMIC.exe Token: SeSystemEnvironmentPrivilege 4256 WMIC.exe Token: SeRemoteShutdownPrivilege 4256 WMIC.exe Token: SeUndockPrivilege 4256 WMIC.exe Token: SeManageVolumePrivilege 4256 WMIC.exe Token: 33 4256 WMIC.exe Token: 34 4256 WMIC.exe Token: 35 4256 WMIC.exe Token: 36 4256 WMIC.exe Token: SeBackupPrivilege 2744 vssvc.exe Token: SeRestorePrivilege 2744 vssvc.exe Token: SeAuditPrivilege 2744 vssvc.exe Token: SeImpersonatePrivilege 4108 6D00D3EF97.exe Token: SeTcbPrivilege 4108 6D00D3EF97.exe Token: SeChangeNotifyPrivilege 4108 6D00D3EF97.exe Token: SeCreateTokenPrivilege 4108 6D00D3EF97.exe Token: SeBackupPrivilege 4108 6D00D3EF97.exe Token: SeRestorePrivilege 4108 6D00D3EF97.exe Token: SeIncreaseQuotaPrivilege 4108 6D00D3EF97.exe Token: SeAssignPrimaryTokenPrivilege 4108 6D00D3EF97.exe Token: SeImpersonatePrivilege 4108 6D00D3EF97.exe Token: SeTcbPrivilege 4108 6D00D3EF97.exe Token: SeChangeNotifyPrivilege 4108 6D00D3EF97.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
6D00D3EF97.exeWINWORD.EXEpid process 4024 6D00D3EF97.exe 4024 6D00D3EF97.exe 2196 WINWORD.EXE 2196 WINWORD.EXE 2196 WINWORD.EXE 2196 WINWORD.EXE -
Suspicious use of WriteProcessMemory 37 IoCs
Processes:
2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe6D00D3EF97.exe6D00D3EF97.execmd.exedescription pid process target process PID 4432 wrote to memory of 5056 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe cmd.exe PID 4432 wrote to memory of 5056 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe cmd.exe PID 4432 wrote to memory of 5056 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe cmd.exe PID 4432 wrote to memory of 5100 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe cmd.exe PID 4432 wrote to memory of 5100 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe cmd.exe PID 4432 wrote to memory of 5100 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe cmd.exe PID 4432 wrote to memory of 3784 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe 7za.exe PID 4432 wrote to memory of 3784 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe 7za.exe PID 4432 wrote to memory of 3784 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe 7za.exe PID 4432 wrote to memory of 2196 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe WINWORD.EXE PID 4432 wrote to memory of 2196 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe WINWORD.EXE PID 4432 wrote to memory of 4024 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe 6D00D3EF97.exe PID 4432 wrote to memory of 4024 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe 6D00D3EF97.exe PID 4432 wrote to memory of 4024 4432 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4024 wrote to memory of 4108 4024 6D00D3EF97.exe 6D00D3EF97.exe PID 4108 wrote to memory of 4144 4108 6D00D3EF97.exe mshta.exe PID 4108 wrote to memory of 4144 4108 6D00D3EF97.exe mshta.exe PID 4108 wrote to memory of 4144 4108 6D00D3EF97.exe mshta.exe PID 4108 wrote to memory of 4256 4108 6D00D3EF97.exe WMIC.exe PID 4108 wrote to memory of 4256 4108 6D00D3EF97.exe WMIC.exe PID 4108 wrote to memory of 4256 4108 6D00D3EF97.exe WMIC.exe PID 2668 wrote to memory of 1000 2668 cmd.exe vssadmin.exe PID 2668 wrote to memory of 1000 2668 cmd.exe vssadmin.exe PID 2668 wrote to memory of 908 2668 cmd.exe bcdedit.exe PID 2668 wrote to memory of 908 2668 cmd.exe bcdedit.exe PID 2668 wrote to memory of 624 2668 cmd.exe bcdedit.exe PID 2668 wrote to memory of 624 2668 cmd.exe bcdedit.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe"C:\Users\Admin\AppData\Local\Temp\2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe"1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo 75BB576D00D3EF972⤵PID:5056
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ren "C:\Users\Admin\AppData\Local\Temp\75BB57" 7za.exe2⤵PID:5100
-
-
C:\Users\Admin\AppData\Local\Temp\7za.exe"C:\Users\Admin\AppData\Local\Temp\7za.exe" e "C:\Users\Admin\AppData\Local\Temp\6D00D3EF97" -y -p6D00D3EF972⤵
- Executes dropped EXE
PID:3784
-
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.doc" /o ""2⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2196
-
-
C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exe"C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4024 -
C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exeC:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exe3⤵
- Executes dropped EXE
- Drops startup file
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4108 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\VAULT.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}4⤵PID:4144
-
-
C:\Windows\SysWOW64\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" process call create "cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures"4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4256
-
-
-
-
C:\Windows\system32\cmd.execmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2668 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:1000
-
-
C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} recoveryenabled no2⤵
- Modifies boot configuration data using bcdedit
PID:908
-
-
C:\Windows\system32\bcdedit.exebcdedit.exe /set {default} bootstatuspolicy ignoreallfailures2⤵
- Modifies boot configuration data using bcdedit
PID:624
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2744
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
MD5
a82e6e7bdd70c5dfee83d81cc058ff2f
SHA1bf8b01db4438f47496d3a0d7ece317010d6043db
SHA256d815ad574ddf564e04b4cce7033769151d5f6b81f18c7d05d948c2c312b87abb
SHA512ccfaa80d5621243e9367ffa23afaac11314c88e9f51e5bae98b67cdef0388e713ee40a9550af5347bbc9b17d41ba8471d17ed9748a167adf30d7dc325cad7620
-
MD5
efcd0a5ec6bb1d981333bf9dea7a72ee
SHA1b9ca0a20adcf6c69dd626e0de86468e4a5514fe3
SHA256718e07ae563bcf629616ac3f056930e804af88e38377b98629ba60257f666699
SHA512dd41d489164891a5c8c2c582f77f6b8c8b54360849ec38b7af0fec4b28137172a4ef9cc2fe6eb10726431152751f3affbc1dd19671bff841742404d809180457
-
MD5
2e884f5dbeadeed885ec040e239fb7b1
SHA15ad96bbedd9260ed0d14b914713d58e7bfd09b97
SHA2564b366fbf4ab85d6007d9edee1a8a4ded620797599cf81c05638e221e21cc8cd4
SHA5122e22ef1d67aab58ec9159dbf56817ff989c53d3572ab229833f52b9fbf1a08f18671fdda8ff6064d80aa2d9a3f45717e42e71958bcb24d2ba6975317aa1420de
-
MD5
2e884f5dbeadeed885ec040e239fb7b1
SHA15ad96bbedd9260ed0d14b914713d58e7bfd09b97
SHA2564b366fbf4ab85d6007d9edee1a8a4ded620797599cf81c05638e221e21cc8cd4
SHA5122e22ef1d67aab58ec9159dbf56817ff989c53d3572ab229833f52b9fbf1a08f18671fdda8ff6064d80aa2d9a3f45717e42e71958bcb24d2ba6975317aa1420de
-
MD5
2e884f5dbeadeed885ec040e239fb7b1
SHA15ad96bbedd9260ed0d14b914713d58e7bfd09b97
SHA2564b366fbf4ab85d6007d9edee1a8a4ded620797599cf81c05638e221e21cc8cd4
SHA5122e22ef1d67aab58ec9159dbf56817ff989c53d3572ab229833f52b9fbf1a08f18671fdda8ff6064d80aa2d9a3f45717e42e71958bcb24d2ba6975317aa1420de
-
MD5
42badc1d2f03a8b1e4875740d3d49336
SHA1cee178da1fb05f99af7a3547093122893bd1eb46
SHA256c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf
SHA5126bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c
-
MD5
42badc1d2f03a8b1e4875740d3d49336
SHA1cee178da1fb05f99af7a3547093122893bd1eb46
SHA256c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf
SHA5126bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c
-
MD5
1cf60361078e1c2f1219d27c4b3e760c
SHA108d350d205da687672b13e22b253932dd1708e75
SHA256c2d9c1bd8bb434dffd5ebbd0e8020ee73123f2e8134b19cbde4b6458f0d05a43
SHA51290f973c08c663dc7ca8575196ca2d6939bbeb9e1943268e8c8bae3b5cd895e85f654726924c86a0f1ffca4830f05c75ac6e80b44d4adeff345e9ff2cacaacccb