Analysis
-
max time kernel
157s -
max time network
171s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
07-07-2022 08:51
Static task
static1
Behavioral task
behavioral1
Sample
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe
Resource
win10v2004-20220414-en
General
-
Target
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe
-
Size
424KB
-
MD5
4ee4303c494680602137222eced50e71
-
SHA1
3783dd9fbde986cc57b57170ac82d20ffeb7e3f3
-
SHA256
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b
-
SHA512
e6bb5129945cc1f4c69a6821bf9596cad72d7c0e9686bacd435365c9417e9a20b649ec59a4cb72875a43eb1a8a6aebc372d004dc3aedbe5a4374f002225e00c0
Malware Config
Extracted
C:\$Recycle.Bin\S-1-5-21-3751123196-3323558407-1869646069-1000\_RECoVERY_+lmsnf.txt
teslacrypt
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/DC351A218A63E6
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/DC351A218A63E6
http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/DC351A218A63E6
http://xlowfznrg4wf7dli.ONION/DC351A218A63E6
Signatures
-
TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
-
suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Executes dropped EXE 1 IoCs
Processes:
xunfkusajaif.exepid Process 3712 xunfkusajaif.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exexunfkusajaif.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation xunfkusajaif.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
xunfkusajaif.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run xunfkusajaif.exe Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bjnrcmhvgxdc = "C:\\Windows\\system32\\cmd.exe /c start \"\" \"C:\\Windows\\xunfkusajaif.exe\"" xunfkusajaif.exe -
Drops file in Program Files directory 64 IoCs
Processes:
xunfkusajaif.exedescription ioc Process File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\HWRCustomization\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\default_apps\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\yo.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\da-DK\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\sl-SI\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\tr-TR\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\kaa.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\OFFICE16\Office Setup Controller\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\OFFICE16\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\lv-LV\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\Source Engine\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\it-IT\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\de-DE\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\fil.pak xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\gu.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\de-DE\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fr-FR\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\ado\fr-FR\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\nb-NO\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\it.txt xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\lv.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskpred\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\es-ES\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\10.0\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\ky.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\et-EE\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\OfficeSoftwareProtectionPlatform\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\MSInfo\fr-FR\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VGX\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\msadc\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\pt-BR\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\Services\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\ado\fr-FR\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\ja-JP\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\fa.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\fr-FR\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\chrome_200_percent.pak xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\fy.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\sr-Latn-RS\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\th-TH\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fr-CA\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\sk-SK\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\en-US\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\en-GB.pak xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\en-GB\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu\_RECoVERY_+lmsnf.html xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\MSInfo\en-US\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\it-IT\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\ast.txt xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\lt.txt xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\nn.txt xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\th.txt xunfkusajaif.exe File opened for modification C:\Program Files\7-Zip\Lang\cy.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\System\msadc\es-ES\_RECoVERY_+lmsnf.txt xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\pt-PT\_RECoVERY_+lmsnf.png xunfkusajaif.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\zh-CN\_RECoVERY_+lmsnf.png xunfkusajaif.exe -
Drops file in Windows directory 2 IoCs
Processes:
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exedescription ioc Process File created C:\Windows\xunfkusajaif.exe 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe File opened for modification C:\Windows\xunfkusajaif.exe 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
xunfkusajaif.exepid Process 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe 3712 xunfkusajaif.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
Processes:
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exexunfkusajaif.exeWMIC.exevssvc.exedescription pid Process Token: SeDebugPrivilege 4052 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe Token: SeDebugPrivilege 3712 xunfkusajaif.exe Token: SeIncreaseQuotaPrivilege 4664 WMIC.exe Token: SeSecurityPrivilege 4664 WMIC.exe Token: SeTakeOwnershipPrivilege 4664 WMIC.exe Token: SeLoadDriverPrivilege 4664 WMIC.exe Token: SeSystemProfilePrivilege 4664 WMIC.exe Token: SeSystemtimePrivilege 4664 WMIC.exe Token: SeProfSingleProcessPrivilege 4664 WMIC.exe Token: SeIncBasePriorityPrivilege 4664 WMIC.exe Token: SeCreatePagefilePrivilege 4664 WMIC.exe Token: SeBackupPrivilege 4664 WMIC.exe Token: SeRestorePrivilege 4664 WMIC.exe Token: SeShutdownPrivilege 4664 WMIC.exe Token: SeDebugPrivilege 4664 WMIC.exe Token: SeSystemEnvironmentPrivilege 4664 WMIC.exe Token: SeRemoteShutdownPrivilege 4664 WMIC.exe Token: SeUndockPrivilege 4664 WMIC.exe Token: SeManageVolumePrivilege 4664 WMIC.exe Token: 33 4664 WMIC.exe Token: 34 4664 WMIC.exe Token: 35 4664 WMIC.exe Token: 36 4664 WMIC.exe Token: SeIncreaseQuotaPrivilege 4664 WMIC.exe Token: SeSecurityPrivilege 4664 WMIC.exe Token: SeTakeOwnershipPrivilege 4664 WMIC.exe Token: SeLoadDriverPrivilege 4664 WMIC.exe Token: SeSystemProfilePrivilege 4664 WMIC.exe Token: SeSystemtimePrivilege 4664 WMIC.exe Token: SeProfSingleProcessPrivilege 4664 WMIC.exe Token: SeIncBasePriorityPrivilege 4664 WMIC.exe Token: SeCreatePagefilePrivilege 4664 WMIC.exe Token: SeBackupPrivilege 4664 WMIC.exe Token: SeRestorePrivilege 4664 WMIC.exe Token: SeShutdownPrivilege 4664 WMIC.exe Token: SeDebugPrivilege 4664 WMIC.exe Token: SeSystemEnvironmentPrivilege 4664 WMIC.exe Token: SeRemoteShutdownPrivilege 4664 WMIC.exe Token: SeUndockPrivilege 4664 WMIC.exe Token: SeManageVolumePrivilege 4664 WMIC.exe Token: 33 4664 WMIC.exe Token: 34 4664 WMIC.exe Token: 35 4664 WMIC.exe Token: 36 4664 WMIC.exe Token: SeBackupPrivilege 2948 vssvc.exe Token: SeRestorePrivilege 2948 vssvc.exe Token: SeAuditPrivilege 2948 vssvc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exexunfkusajaif.exedescription pid Process procid_target PID 4052 wrote to memory of 3712 4052 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe 81 PID 4052 wrote to memory of 3712 4052 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe 81 PID 4052 wrote to memory of 3712 4052 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe 81 PID 4052 wrote to memory of 2256 4052 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe 82 PID 4052 wrote to memory of 2256 4052 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe 82 PID 4052 wrote to memory of 2256 4052 466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe 82 PID 3712 wrote to memory of 4664 3712 xunfkusajaif.exe 86 PID 3712 wrote to memory of 4664 3712 xunfkusajaif.exe 86 -
System policy modification 1 TTPs 2 IoCs
Processes:
xunfkusajaif.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System xunfkusajaif.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" xunfkusajaif.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe"C:\Users\Admin\AppData\Local\Temp\466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4052 -
C:\Windows\xunfkusajaif.exeC:\Windows\xunfkusajaif.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:3712 -
C:\Windows\System32\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive3⤵
- Suspicious use of AdjustPrivilegeToken
PID:4664
-
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\466A08~1.EXE2⤵PID:2256
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2948
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
424KB
MD54ee4303c494680602137222eced50e71
SHA13783dd9fbde986cc57b57170ac82d20ffeb7e3f3
SHA256466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b
SHA512e6bb5129945cc1f4c69a6821bf9596cad72d7c0e9686bacd435365c9417e9a20b649ec59a4cb72875a43eb1a8a6aebc372d004dc3aedbe5a4374f002225e00c0
-
Filesize
424KB
MD54ee4303c494680602137222eced50e71
SHA13783dd9fbde986cc57b57170ac82d20ffeb7e3f3
SHA256466a0840ed6f4484f26afb630c6875cc6d9ebd4a968ee2808b801d89fcb31c4b
SHA512e6bb5129945cc1f4c69a6821bf9596cad72d7c0e9686bacd435365c9417e9a20b649ec59a4cb72875a43eb1a8a6aebc372d004dc3aedbe5a4374f002225e00c0