Analysis
- max time kernel
147s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
17/04/2024, 12:54
General
- Target c384d26e83f585fbadd73e6cea441d1479d68de5bb647f775b506e5eab7f3230.exe
- Size 647KB
- Sample240417-p5btxsga66
- SHA256 c384d26e83f585fbadd73e6cea441d1479d68de5bb647f775b506e5eab7f3230
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Drops file in System32 directory 1 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 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\c384d26e83f585fbadd73e6cea441d1479d68de5bb647f775b506e5eab7f3230.exe"C:\Users\Admin\AppData\Local\Temp\c384d26e83f585fbadd73e6cea441d1479d68de5bb647f775b506e5eab7f3230.exe"1⤵
- Drops file in System32 directory
- 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 "$Harish116=Get-Content 'C:\Users\Admin\AppData\Local\Ubarberet\Graustark\resultalet\Unmeringued.Brd';$Omkldningsrums=$Harish116.SubString(61425,3);.$Omkldningsrums($Harish116)"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 NtSetInformationThreadHideFromDebugger
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_vxgci1il.v0f.ps1
Reluktansernes.Ove71
Unmeringued.Brd
memory/1060-61-0x0000000000F00000-0x0000000001B31000-memory.dmp
memory/1060-60-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/1060-47-0x0000000077CD1000-0x0000000077DF1000-memory.dmp
memory/1060-46-0x0000000077D58000-0x0000000077D59000-memory.dmp
memory/1060-45-0x0000000000F00000-0x0000000001B31000-memory.dmp
memory/5092-23-0x0000000005D30000-0x0000000006084000-memory.dmp
memory/5092-37-0x0000000008A40000-0x0000000009671000-memory.dmp
memory/5092-25-0x0000000006220000-0x000000000626C000-memory.dmp
memory/5092-26-0x0000000002CD0000-0x0000000002CE0000-memory.dmp
memory/5092-27-0x0000000007140000-0x00000000071D6000-memory.dmp
memory/5092-29-0x00000000066F0000-0x0000000006712000-memory.dmp
memory/5092-28-0x00000000066A0000-0x00000000066BA000-memory.dmp
memory/5092-30-0x0000000007790000-0x0000000007D34000-memory.dmp
memory/5092-8-0x0000000002BA0000-0x0000000002BD6000-memory.dmp
memory/5092-32-0x00000000083C0000-0x0000000008A3A000-memory.dmp
memory/5092-34-0x0000000002CD0000-0x0000000002CE0000-memory.dmp
memory/5092-18-0x0000000005B10000-0x0000000005B76000-memory.dmp
memory/5092-36-0x0000000007690000-0x0000000007694000-memory.dmp
memory/5092-24-0x0000000006170000-0x000000000618E000-memory.dmp
memory/5092-38-0x0000000074280000-0x0000000074A30000-memory.dmp
memory/5092-39-0x0000000008A40000-0x0000000009671000-memory.dmp
memory/5092-41-0x0000000002CD0000-0x0000000002CE0000-memory.dmp
memory/5092-42-0x0000000002CD0000-0x0000000002CE0000-memory.dmp
memory/5092-44-0x0000000077CD1000-0x0000000077DF1000-memory.dmp
memory/5092-43-0x0000000008A40000-0x0000000009671000-memory.dmp
memory/5092-12-0x0000000005AA0000-0x0000000005B06000-memory.dmp
memory/5092-11-0x00000000052A0000-0x00000000052C2000-memory.dmp
memory/5092-10-0x0000000005380000-0x00000000059A8000-memory.dmp
memory/5092-9-0x0000000002CD0000-0x0000000002CE0000-memory.dmp
memory/5092-7-0x0000000074280000-0x0000000074A30000-memory.dmp
memory/5092-67-0x0000000074280000-0x0000000074A30000-memory.dmp
memory/5092-68-0x0000000008A40000-0x0000000009671000-memory.dmp