Analysis
- max time kernel
299s - max time network
301s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
17/08/2026, 15:30
General
- Target enkD34C.tmp.exe
- Size 3.2MB
- Sample260817-sxt73scc26
- SHA256 fe9ece31049bf0458628efc5f7af5c8b925c11e00d04d6abc6b15bcb300d8748
Malware Config
Signatures
- Family: Coffloader
Coffloader is an open-source beacon loader written in C.
- Detects Coffloader 1 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 3 IoCs
- Mark of the Web detected: This indicates that the page was originally saved or cloned. 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 3 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\enkD34C.tmp.exe"C:\Users\Admin\AppData\Local\Temp\enkD34C.tmp.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\Temp\csrss.exe"C:\Windows\Temp\csrss.exe"2⤵
- Executes dropped EXE
-
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command "Add-MpPreference -ExclusionPath 'C:\ProgramData\PackagesEdge\*'"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\ProgramData\PackagesEdge\GUP.exe"C:\ProgramData\PackagesEdge\GUP.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Mark of the Web detected: This indicates that the page was originally saved or cloned.
- Suspicious use of SetWindowsHookEx
-
-
C:\ProgramData\PackagesEdge\GUP.exeC:\ProgramData\PackagesEdge\GUP.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
-
C:\ProgramData\PackagesEdge\GUP.exeC:\ProgramData\PackagesEdge\GUP.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
GUP.exe
gup.xml
libcurl.dll
libcurl.xml
__PSScriptPolicyTest_rizoyvle.oxc.ps1
csrss.exe
memory/2800-34-0x00007FFDA80E0000-0x00007FFDA819A000-memory.dmp
memory/4060-16-0x0000022362D20000-0x0000022362F3C000-memory.dmp
memory/4060-4-0x0000022348A20000-0x0000022348A30000-memory.dmp
memory/4060-5-0x0000022348A20000-0x0000022348A30000-memory.dmp
memory/4060-11-0x0000022348C50000-0x0000022348C72000-memory.dmp
memory/4360-54-0x000001B72C740000-0x000001B72C75D000-memory.dmp
memory/4360-30-0x00007FFDA80E0000-0x00007FFDA819A000-memory.dmp
memory/4360-47-0x00007FFDA80E0000-0x00007FFDA819A000-memory.dmp
memory/4360-31-0x00007FFDADC80000-0x00007FFDADC90000-memory.dmp
memory/4360-55-0x00000002174C0000-0x00000002174E8000-memory.dmp
memory/4360-53-0x000001B72C720000-0x000001B72C73E000-memory.dmp
memory/4360-65-0x00007FFDB74D0000-0x00007FFDB76C5000-memory.dmp
memory/4360-52-0x000001B72BEC0000-0x000001B72C2C0000-memory.dmp
memory/4360-66-0x00007FFDA80E0000-0x00007FFDA819A000-memory.dmp
memory/5064-46-0x00007FFDADC80000-0x00007FFDADC90000-memory.dmp
memory/5064-45-0x00007FFDA80E0000-0x00007FFDA819A000-memory.dmp
memory/5064-50-0x00007FFDA80E0000-0x00007FFDA819A000-memory.dmp