Analysis
- max time kernel
94s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20250217-en - resource tags
- submitted
10/03/2025, 11:39
General
- Target e7a36fadad357adadb8a4135a3294fbb42de472adbb573c20fa7f7efc6c0e921.exe
- Size 475KB
- Sample250310-nsffxatjs6
- SHA256 e7a36fadad357adadb8a4135a3294fbb42de472adbb573c20fa7f7efc6c0e921
Malware Config
Signatures
- Loads dropped DLL 1 IoCs
- Blocklisted process makes network request 5 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- 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).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 22 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e7a36fadad357adadb8a4135a3294fbb42de472adbb573c20fa7f7efc6c0e921.exe"C:\Users\Admin\AppData\Local\Temp\e7a36fadad357adadb8a4135a3294fbb42de472adbb573c20fa7f7efc6c0e921.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -windowstyle minimized "$Checkkontienes=gc -Raw 'C:\Users\Admin\AppData\Roaming\Kalkvrksarbejderen84\chego\reverensens\Krblings.Udp';$Volva=$Checkkontienes.SubString(53853,3);.$Volva($Checkkontienes)"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"3⤵
- Blocklisted process makes network request
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 19004⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4588 -ip 45881⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_2dzq22gs.s1e.ps1
nsExec.dll
Kaldesignalerne.Asq
Krblings.Udp
memory/4452-31-0x0000000005BE0000-0x0000000005C2C000-memory.dmp
memory/4452-50-0x0000000006FF0000-0x000000000700E000-memory.dmp
memory/4452-17-0x0000000004AF0000-0x0000000004B12000-memory.dmp
memory/4452-18-0x00000000054F0000-0x0000000005556000-memory.dmp
memory/4452-19-0x0000000005560000-0x00000000055C6000-memory.dmp
memory/4452-15-0x0000000004C90000-0x00000000052B8000-memory.dmp
memory/4452-29-0x00000000055D0000-0x0000000005924000-memory.dmp
memory/4452-30-0x0000000005BA0000-0x0000000005BBE000-memory.dmp
memory/4452-14-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-32-0x0000000006B60000-0x0000000006BF6000-memory.dmp
memory/4452-33-0x00000000060C0000-0x00000000060DA000-memory.dmp
memory/4452-34-0x0000000006130000-0x0000000006152000-memory.dmp
memory/4452-35-0x0000000007200000-0x00000000077A4000-memory.dmp
memory/4452-56-0x0000000007190000-0x000000000719E000-memory.dmp
memory/4452-37-0x0000000007E30000-0x00000000084AA000-memory.dmp
memory/4452-55-0x0000000007140000-0x0000000007151000-memory.dmp
memory/4452-40-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-39-0x000000006FA10000-0x000000006FA5C000-memory.dmp
memory/4452-38-0x0000000006FB0000-0x0000000006FE2000-memory.dmp
memory/4452-51-0x0000000007020000-0x00000000070C3000-memory.dmp
memory/4452-52-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-53-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-16-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-54-0x0000000007120000-0x000000000712A000-memory.dmp
memory/4452-13-0x00000000022D0000-0x0000000002306000-memory.dmp
memory/4452-57-0x00000000071A0000-0x00000000071B4000-memory.dmp
memory/4452-58-0x00000000071E0000-0x00000000071FA000-memory.dmp
memory/4452-59-0x00000000071D0000-0x00000000071D8000-memory.dmp
memory/4452-60-0x0000000007950000-0x000000000797A000-memory.dmp
memory/4452-61-0x0000000007980000-0x00000000079A4000-memory.dmp
memory/4452-62-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-64-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-12-0x000000007359E000-0x000000007359F000-memory.dmp
memory/4452-66-0x000000007359E000-0x000000007359F000-memory.dmp
memory/4452-67-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-68-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-69-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-70-0x00000000084B0000-0x000000000D1DE000-memory.dmp
memory/4452-71-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-72-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-73-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-74-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4452-76-0x0000000073590000-0x0000000073D40000-memory.dmp
memory/4588-89-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/4588-90-0x0000000000C00000-0x0000000001E54000-memory.dmp