52356abff533c337129af9b251bfb053f49e3e00ad2da2440e2111ad66ceabd7

Analysis

max time kernel
404s
max time network
408s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2025, 02:16

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General

Target

DCRat/data/dotNET_Reactor.Console.exe
Size

34KB
MD5

69d18a3245f3c2fd02c82304c494e977
SHA1

049cda6bc59daeadfe82fce2197e0e15c2847a7b
SHA256

b55b0a652538836ed681c2afd985310fd39ad2f31ac159847fc46a6065f3232e
SHA512

5791cffbc2389eaaf18e4f31c320325d4bdfadf7ab00c847bfedccbea8fec26a3f4452877d00c95e0573e90306d7a2c988c00fcb7d495ac22955c7f64fb047c3
SSDEEP

768:5oOABBREOgrMTPrZwbiRPp7yMkZwuzZyiRYn7:5oHB2OlfZwbixp7yMkZwWZyien7

Score

7^/10

discovery

Malware Config

Signatures

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral26/memory/4300-4-0x0000000000AF0000-0x0000000001D9A000-memory.dmp	net_reactor
behavioral26/memory/4300-10-0x0000000000AF0000-0x0000000001D9A000-memory.dmp	net_reactor

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4300	dotNET_Reactor.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dotNET_Reactor.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4300	dotNET_Reactor.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 4300	4048	dotNET_Reactor.Console.exe	87
PID 4048 wrote to memory of 4300	4048	dotNET_Reactor.Console.exe	87
PID 4048 wrote to memory of 4300	4048	dotNET_Reactor.Console.exe	87

C:\Users\Admin\AppData\Local\Temp\DCRat\data\dotNET_Reactor.Console.exe
"C:\Users\Admin\AppData\Local\Temp\DCRat\data\dotNET_Reactor.Console.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Users\Admin\AppData\Local\Temp\DCRat\data\dotNET_Reactor.exe
  "C:\Users\Admin\AppData\Local\Temp\DCRat\data\dotNET_Reactor.exe" "--noargs"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4048-1-0x0000000000E60000-0x0000000000E6A000-memory.dmp

Filesize
40KB

Download
memory/4048-0-0x00007FFF23BE3000-0x00007FFF23BE5000-memory.dmp

Filesize
8KB

Download
memory/4300-2-0x0000000000AF0000-0x0000000001D9A000-memory.dmp

Filesize
18.7MB

Download
memory/4300-3-0x000000007417E000-0x000000007417F000-memory.dmp

Filesize
4KB

Download
memory/4300-4-0x0000000000AF0000-0x0000000001D9A000-memory.dmp

Filesize
18.7MB

Download
memory/4300-5-0x0000000006AB0000-0x0000000007054000-memory.dmp

Filesize
5.6MB

Download
memory/4300-6-0x0000000074170000-0x0000000074920000-memory.dmp

Filesize
7.7MB

Download
memory/4300-7-0x00000000065B0000-0x0000000006616000-memory.dmp

Filesize
408KB

Download
memory/4300-8-0x0000000007500000-0x0000000007592000-memory.dmp

Filesize
584KB

Download
memory/4300-10-0x0000000000AF0000-0x0000000001D9A000-memory.dmp

Filesize
18.7MB

Download
memory/4300-11-0x0000000074170000-0x0000000074920000-memory.dmp

Filesize
7.7MB

Download