Analysis
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max time kernel
10s -
max time network
11s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-10-2022 05:27
Static task
static1
Behavioral task
behavioral1
Sample
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe
Resource
win10v2004-20220812-en
General
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Target
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe
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Size
424KB
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MD5
7c40b634eede572b07ff7a01b58241e3
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SHA1
4100efcc1336945fad2de3dac21faa7056b1ba4c
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SHA256
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd
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SHA512
0b04c3e70b67cb6c5c2e3dcdc3c47efd1bfbbb8f12411577b6217cceb7359307485257ce017456865f12886018888904316aa51c2fe2c0451dc4b93dda046d3a
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SSDEEP
12288:EmM+X6gSTFp6q5ePiWkO1AeV5WhtblCJxfS6:zMq6gSTLj5f5O5u5OR1
Malware Config
Extracted
C:\$Recycle.Bin\S-1-5-21-2295526160-1155304984-640977766-1000\_RECoVERY_+wvedb.txt
teslacrypt
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/DF9513C188DF97B3
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/DF9513C188DF97B3
http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/DF9513C188DF97B3
http://xlowfznrg4wf7dli.ONION/DF9513C188DF97B3
Signatures
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TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Executes dropped EXE 1 IoCs
Processes:
okrtyiiyixor.exepid process 4844 okrtyiiyixor.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exeokrtyiiyixor.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation okrtyiiyixor.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
okrtyiiyixor.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run okrtyiiyixor.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\qetxykpmameu = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\okrtyiiyixor.exe\"" okrtyiiyixor.exe -
Drops file in Program Files directory 64 IoCs
Processes:
okrtyiiyixor.exedescription ioc process File opened for modification C:\Program Files\7-Zip\readme.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\et-EE\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\fr-FR\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ja-JP\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ja-JP\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\nb-NO\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\Stationery\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\fur.txt okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fi-FI\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\License.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\cs-CZ\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\nl-NL\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\hu.txt okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\ka.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\sk-SK\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\de-DE\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\th.txt okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\zh-cn.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\nb-NO\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\MSInfo\es-ES\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\msadc\it-IT\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\default_apps\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\ja-JP\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\fr.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\es-ES\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\lv.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\DESIGNER\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\de-DE\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\fr-FR\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\ku-ckb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\lv-LV\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\nl-NL\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\OfficeSoftwareProtectionPlatform\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\fr-FR\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\es-ES\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\DESIGNER\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\de-DE\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\msadc\de-DE\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\it-IT\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\msadc\de-DE\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\mk.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\hu-HU\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\ado\de-DE\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\he-IL\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\Triedit\en-US\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\_RECoVERY_+wvedb.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\sr-Latn-RS\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\en-US\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\7-Zip\Lang\ru.txt okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\Triedit\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\10.0\1033\_RECoVERY_+wvedb.html okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\de-DE\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\_RECoVERY_+wvedb.png okrtyiiyixor.exe File opened for modification C:\Program Files\Common Files\microsoft shared\_RECoVERY_+wvedb.txt okrtyiiyixor.exe -
Drops file in Windows directory 2 IoCs
Processes:
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exedescription ioc process File created C:\Windows\okrtyiiyixor.exe 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe File opened for modification C:\Windows\okrtyiiyixor.exe 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 58 IoCs
Processes:
okrtyiiyixor.exepid process 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe 4844 okrtyiiyixor.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
Processes:
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exeokrtyiiyixor.exeWMIC.exevssvc.exedescription pid process Token: SeDebugPrivilege 1260 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe Token: SeDebugPrivilege 4844 okrtyiiyixor.exe Token: SeIncreaseQuotaPrivilege 604 WMIC.exe Token: SeSecurityPrivilege 604 WMIC.exe Token: SeTakeOwnershipPrivilege 604 WMIC.exe Token: SeLoadDriverPrivilege 604 WMIC.exe Token: SeSystemProfilePrivilege 604 WMIC.exe Token: SeSystemtimePrivilege 604 WMIC.exe Token: SeProfSingleProcessPrivilege 604 WMIC.exe Token: SeIncBasePriorityPrivilege 604 WMIC.exe Token: SeCreatePagefilePrivilege 604 WMIC.exe Token: SeBackupPrivilege 604 WMIC.exe Token: SeRestorePrivilege 604 WMIC.exe Token: SeShutdownPrivilege 604 WMIC.exe Token: SeDebugPrivilege 604 WMIC.exe Token: SeSystemEnvironmentPrivilege 604 WMIC.exe Token: SeRemoteShutdownPrivilege 604 WMIC.exe Token: SeUndockPrivilege 604 WMIC.exe Token: SeManageVolumePrivilege 604 WMIC.exe Token: 33 604 WMIC.exe Token: 34 604 WMIC.exe Token: 35 604 WMIC.exe Token: 36 604 WMIC.exe Token: SeIncreaseQuotaPrivilege 604 WMIC.exe Token: SeSecurityPrivilege 604 WMIC.exe Token: SeTakeOwnershipPrivilege 604 WMIC.exe Token: SeLoadDriverPrivilege 604 WMIC.exe Token: SeSystemProfilePrivilege 604 WMIC.exe Token: SeSystemtimePrivilege 604 WMIC.exe Token: SeProfSingleProcessPrivilege 604 WMIC.exe Token: SeIncBasePriorityPrivilege 604 WMIC.exe Token: SeCreatePagefilePrivilege 604 WMIC.exe Token: SeBackupPrivilege 604 WMIC.exe Token: SeRestorePrivilege 604 WMIC.exe Token: SeShutdownPrivilege 604 WMIC.exe Token: SeDebugPrivilege 604 WMIC.exe Token: SeSystemEnvironmentPrivilege 604 WMIC.exe Token: SeRemoteShutdownPrivilege 604 WMIC.exe Token: SeUndockPrivilege 604 WMIC.exe Token: SeManageVolumePrivilege 604 WMIC.exe Token: 33 604 WMIC.exe Token: 34 604 WMIC.exe Token: 35 604 WMIC.exe Token: 36 604 WMIC.exe Token: SeBackupPrivilege 4612 vssvc.exe Token: SeRestorePrivilege 4612 vssvc.exe Token: SeAuditPrivilege 4612 vssvc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exeokrtyiiyixor.exedescription pid process target process PID 1260 wrote to memory of 4844 1260 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe okrtyiiyixor.exe PID 1260 wrote to memory of 4844 1260 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe okrtyiiyixor.exe PID 1260 wrote to memory of 4844 1260 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe okrtyiiyixor.exe PID 1260 wrote to memory of 440 1260 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe cmd.exe PID 1260 wrote to memory of 440 1260 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe cmd.exe PID 1260 wrote to memory of 440 1260 7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe cmd.exe PID 4844 wrote to memory of 604 4844 okrtyiiyixor.exe WMIC.exe PID 4844 wrote to memory of 604 4844 okrtyiiyixor.exe WMIC.exe -
System policy modification 1 TTPs 2 IoCs
Processes:
okrtyiiyixor.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System okrtyiiyixor.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" okrtyiiyixor.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe"C:\Users\Admin\AppData\Local\Temp\7e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\okrtyiiyixor.exeC:\Windows\okrtyiiyixor.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4844 -
C:\Windows\System32\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive3⤵
- Suspicious use of AdjustPrivilegeToken
PID:604
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\7E9DC6~1.EXE2⤵PID:440
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4612
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
424KB
MD57c40b634eede572b07ff7a01b58241e3
SHA14100efcc1336945fad2de3dac21faa7056b1ba4c
SHA2567e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd
SHA5120b04c3e70b67cb6c5c2e3dcdc3c47efd1bfbbb8f12411577b6217cceb7359307485257ce017456865f12886018888904316aa51c2fe2c0451dc4b93dda046d3a
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Filesize
424KB
MD57c40b634eede572b07ff7a01b58241e3
SHA14100efcc1336945fad2de3dac21faa7056b1ba4c
SHA2567e9dc695fa671680871d62dd8521b4833fcbfc00a4e5da792083b38c7870d7cd
SHA5120b04c3e70b67cb6c5c2e3dcdc3c47efd1bfbbb8f12411577b6217cceb7359307485257ce017456865f12886018888904316aa51c2fe2c0451dc4b93dda046d3a