Analysis
- max time kernel
149s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
16/09/2026, 19:55
General
- Target static-Office365.exe
- Size 12.8MB
- Sample260916-yncjkavepb
- SHA256 277b73d7981302c0da84c9656c8c5e132929d433aa8485b288ba7c5397b4b469
Malware Config
Signatures
- Family: xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
- XMRig Miner payload 31 IoCs
- Downloads MZ/PE file 2 IoCs
- Executes dropped EXE 1 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Opens file in notepad (likely ransom note) 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\static-Office365.exe"C:\Users\Admin\AppData\Local\Temp\static-Office365.exe"1⤵
- Downloads MZ/PE file
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\notepad.exe"C:\Windows\system32\notepad.exe" --config=C:\Users\Admin\AppData\Local\Temp\TC41D2.tmp2⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
-
-
C:\Windows\system32\notepad.exe"C:\Windows\system32\notepad.exe" --config=C:\Users\Admin\AppData\Local\Temp\TC4946.tmp2⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
-
-
C:\Users\Admin\AppData\Roaming\Microsoft\static-Office365.exeC:\Users\Admin\AppData\Roaming\Microsoft\static-Office365.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
TC41D2.tmp
TC41D2.tmp
TC4946.tmp
static-Office365.exe
memory/3196-32-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-42-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-50-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-48-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-15-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-46-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-44-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-40-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-26-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-28-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-30-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-38-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-36-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3196-34-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3680-10-0x000002DCEE8E0000-0x000002DCEE900000-memory.dmp
memory/3680-5-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/3680-13-0x00007FF78C3C0000-0x00007FF78CB70000-memory.dmp
memory/4060-2-0x00007FF6B9C40000-0x00007FF6BA916000-memory.dmp
memory/6012-31-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-39-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-25-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-41-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-33-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-43-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-37-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-45-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-3-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-47-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-0-0x0000025EB7200000-0x0000025EB7201000-memory.dmp
memory/6012-49-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp
memory/6012-35-0x00007FF67CB80000-0x00007FF67D856000-memory.dmp