Analysis
- max time kernel
94s - max time network
95s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
13/11/2024, 10:08
General
- Target 62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c.exe
- Size 2.8MB
- Sample241113-l6fbyszfml
- SHA256 62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c
Malware Config
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 1 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Delays execution with timeout.exe 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c.exe"C:\Users\Admin\AppData\Local\Temp\62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c.exe"1⤵
- Checks computer location settings
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /tn AccSys /tr "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe" /st 10:13 /du 23:59 /sc daily /ri 1 /f2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\ACCApi'2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe"C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCDFE.tmp.cmd""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 63⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_04md1zfp.px3.ps1
tmpCDFE.tmp.cmd
apihost.exe
memory/896-9-0x00000000744D0000-0x0000000074C80000-memory.dmp
memory/896-58-0x0000000007780000-0x000000000779A000-memory.dmp
memory/896-11-0x0000000005760000-0x0000000005D88000-memory.dmp
memory/896-68-0x00000000744D0000-0x0000000074C80000-memory.dmp
memory/896-18-0x00000000744D0000-0x0000000074C80000-memory.dmp
memory/896-65-0x0000000007AA0000-0x0000000007AA8000-memory.dmp
memory/896-22-0x00000000055A0000-0x00000000055C2000-memory.dmp
memory/896-64-0x0000000007AC0000-0x0000000007ADA000-memory.dmp
memory/896-63-0x00000000079C0000-0x00000000079D4000-memory.dmp
memory/896-30-0x0000000005D90000-0x0000000005DF6000-memory.dmp
memory/896-33-0x00000000744D0000-0x0000000074C80000-memory.dmp
memory/896-62-0x00000000079B0000-0x00000000079BE000-memory.dmp
memory/896-36-0x0000000005E70000-0x00000000061C4000-memory.dmp
memory/896-61-0x0000000007980000-0x0000000007991000-memory.dmp
memory/896-8-0x0000000002B50000-0x0000000002B86000-memory.dmp
memory/896-44-0x0000000006A20000-0x0000000006A52000-memory.dmp
memory/896-32-0x0000000005E00000-0x0000000005E66000-memory.dmp
memory/896-42-0x0000000006490000-0x00000000064DC000-memory.dmp
memory/896-45-0x0000000071DB0000-0x0000000071DFC000-memory.dmp
memory/896-55-0x0000000006A00000-0x0000000006A1E000-memory.dmp
memory/896-56-0x0000000007650000-0x00000000076F3000-memory.dmp
memory/896-57-0x0000000007DD0000-0x000000000844A000-memory.dmp
memory/896-41-0x0000000006460000-0x000000000647E000-memory.dmp
memory/896-59-0x00000000077F0000-0x00000000077FA000-memory.dmp
memory/896-60-0x0000000007A00000-0x0000000007A96000-memory.dmp
memory/1380-35-0x00000000744D0000-0x0000000074C80000-memory.dmp
memory/1380-43-0x0000000006360000-0x000000000636A000-memory.dmp
memory/1380-69-0x00000000744D0000-0x0000000074C80000-memory.dmp
memory/2668-1-0x0000000000CC0000-0x0000000000CE4000-memory.dmp
memory/2668-2-0x0000000005D30000-0x00000000062D4000-memory.dmp
memory/2668-0-0x00000000744DE000-0x00000000744DF000-memory.dmp
memory/2668-3-0x0000000005780000-0x0000000005812000-memory.dmp