Analysis
- max time kernel
50s - max time network
20s - platform
windows7_x64 - resource
win7-20240708-en - resource tags
- submitted
09/08/2024, 07:56
General
- Target Purc-Order No.# PO# 0042082 & PO# 0042082 REG 1605882720240808..... PDF.exe
- Size 871KB
- Sample240809-js35rayanr
- SHA256 3023f5dbdebc637da61b4eec0deea00c28437b6ce0a60a11295eb40a63c8f59c
Malware Config
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Suspicious use of SetThreadContext 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 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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: EnumeratesProcesses 11 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 19 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Purc-Order No.# PO# 0042082 & PO# 0042082 REG 1605882720240808..... PDF.exe"C:\Users\Admin\AppData\Local\Temp\Purc-Order No.# PO# 0042082 & PO# 0042082 REG 1605882720240808..... PDF.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Purc-Order No.# PO# 0042082 & PO# 0042082 REG 1605882720240808..... PDF.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PSrHzLcgx.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PSrHzLcgx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDF9.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\Purc-Order No.# PO# 0042082 & PO# 0042082 REG 1605882720240808..... PDF.exe"C:\Users\Admin\AppData\Local\Temp\Purc-Order No.# PO# 0042082 & PO# 0042082 REG 1605882720240808..... PDF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmpCDF9.tmp
d93f411851d7c929.customDestinations-ms
memory/1292-3-0x0000000074950000-0x000000007503E000-memory.dmp
memory/1292-0-0x000000007495E000-0x000000007495F000-memory.dmp
memory/1292-4-0x0000000000570000-0x000000000058A000-memory.dmp
memory/1292-5-0x00000000005D0000-0x00000000005DE000-memory.dmp
memory/1292-6-0x00000000005E0000-0x00000000005F6000-memory.dmp
memory/1292-7-0x0000000005820000-0x00000000058AE000-memory.dmp
memory/1292-2-0x0000000006DF0000-0x0000000006EA4000-memory.dmp
memory/1292-1-0x0000000000B70000-0x0000000000C50000-memory.dmp
memory/1292-26-0x0000000074950000-0x000000007503E000-memory.dmp
memory/2060-25-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2060-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2060-22-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2060-20-0x0000000000400000-0x0000000000446000-memory.dmp