Analysis
- max time kernel
149s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/02/2026, 15:00
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
rOrdendecompraf.exe
Resource
win10v2004-20260130-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
rOrdendecompraf.exe
Resource
win11-20260130-en
10 signatures
150 seconds
General
- Target rOrdendecompraf.exe
- Size 1.1MB
- Sample260228-sdlrlabw7h
- SHA256 238441c6a05dd55e6cee3b33c991a8d91302c9e687e4607f2b33ca74dc850ea5
- MD5 98b741acd352a8a48fcc8f7c94b0502e
- SHA1 58585889116f7889fcbdfe79bfdaa659aaf78e81
- SHA512 75ef5c37e470630d6c6084821149ead58c036167a59366c1bc82387ffbd2b61ced046c90e0553e1c9552b61f250daee3462a1e531411c4595498965177bcd28c
- SSDEEP 12288:WuHN6JaLZokGOuXJxNB3+MLi6bvar5vknJlZelegsUPr3AMMSUqf1GFzO21KObA5:WglLZoNOYwMW9UwljzAE30L1KObz4L
- TLSH T15135E0060EC32B94D1594F7CD2A610A877F0D55B9212E76F2FED42F0EEA7B4AC906463
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- .NET Reactor proctector 1 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
resource yara_rule behavioral1/memory/1924-6-0x0000000005350000-0x0000000005394000-memory.dmp net_reactor - Executes dropped EXE 1 IoCs
pid Process 1988 firehalls.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-914486190-3969805341-592249730-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\fisk = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\firehalls.exe" AddInProcess32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1924 set thread context of 544 1924 rOrdendecompraf.exe 101 - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe AddInProcess32.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rOrdendecompraf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AddInProcess32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language firehalls.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1924 rOrdendecompraf.exe 1924 rOrdendecompraf.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1924 rOrdendecompraf.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 544 AddInProcess32.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1924 wrote to memory of 544 1924 rOrdendecompraf.exe 101 PID 1924 wrote to memory of 544 1924 rOrdendecompraf.exe 101 PID 1924 wrote to memory of 544 1924 rOrdendecompraf.exe 101 PID 1924 wrote to memory of 544 1924 rOrdendecompraf.exe 101 PID 1924 wrote to memory of 544 1924 rOrdendecompraf.exe 101
Processes
-
C:\Users\Admin\AppData\Local\Temp\rOrdendecompraf.exe"C:\Users\Admin\AppData\Local\Temp\rOrdendecompraf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"2⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:544
-
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\firehalls.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\firehalls.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1988
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\firehalls.exe
- Size 42KB
- SHA256 c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a
- MD5 9827ff3cdf4b83f9c86354606736ca9c
- SHA1 e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723
- SHA512 8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579
- SSDEEP 384:ac3JOvwWj8Gpw0A67dOpRipKJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+TsPZX:a4JU8g17dG6Iq8XMnVYqW2Xmh829ukc
- TLSH T12813C668D7E81313E2B34BB099F5C483AD76B653AE74DB5C348E534D0E637809A1272E
- MD5 SHA1 SHA512 SSDEEP TLSH