Analysis
- max time kernel
130s - max time network
171s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
09/02/2022, 10:21
Static task
static1
Behavioral task
behavioral1
Sample
Transfer Request Invoice.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Transfer Request Invoice.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
- Target Transfer Request Invoice.exe
- Size 287KB
- Sample220209-mdnnasabdr
- SHA256 bbd7431d0d5272927e67c43cd961df4d855a4dcd080373355f980d61ff110337
- MD5 c1493a6b8c00676bfed8876128c25a40
- SHA1 a494b39f2280fa4e97c9260739c4002a318eae3b
- SHA512 fa7c2c9a1f32c60a86fe09a06eea7fba1b0e446e3dea47b5ac21d59c75de143bfc25206525d5dbe3b0b9a06e2fc77ba03c00347503c2a079ce062141cd93f58b
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
pid Process 5072 Transfer Request Invoice.exe 5072 Transfer Request Invoice.exe - Drops file in Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 4484 svchost.exe Token: SeCreatePagefilePrivilege 4484 svchost.exe Token: SeShutdownPrivilege 4484 svchost.exe Token: SeCreatePagefilePrivilege 4484 svchost.exe Token: SeShutdownPrivilege 4484 svchost.exe Token: SeCreatePagefilePrivilege 4484 svchost.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe Token: SeRestorePrivilege 4712 TiWorker.exe Token: SeSecurityPrivilege 4712 TiWorker.exe Token: SeBackupPrivilege 4712 TiWorker.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Transfer Request Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Transfer Request Invoice.exe"1⤵
- Loads dropped DLL
PID:5072
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4484
-
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4712