ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0

General

Target

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
Size

153KB
MD5

18438522a7d9dcba961e6137345ab028
SHA1

7dfd34841ca7e87debcb8b8825e3dbda34fc666c
SHA256

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0
SHA512

b3352f0f4f2f7f71bc6f37d97fb199bcc2364fe12103305acf914357d56cb079148728197dee24b4149253cc73ec1cea80fbe8d0fdb9acebf353579167ce1f5b
SSDEEP

1536:MRV6r3J5iQ271nb3jSek/f3kjW45A6K8wbkxscyKu/z5oDqxR3rxAEmDdoYD:Mqr3JiN38F9bkxHyKuPxRGEm2YD

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-191181821\\1tbd8v1.exe"	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\2bb8fd1f70 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-191181821\\1tbd8v1.exe"	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

description	ioc	process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781862338-191181821\Desktop.ini	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-191181821\\1tbd8v1.exe"	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

description	pid	process	target process
PID 772 set thread context of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exeec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

pid	process
772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
320	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exeec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe

description	pid	process	target process
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 772 wrote to memory of 320	772	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
PID 320 wrote to memory of 1312	320	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	Explorer.EXE
PID 320 wrote to memory of 1312	320	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	Explorer.EXE
PID 320 wrote to memory of 1312	320	ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe	Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
"C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:772

C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
"C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe"
2⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:320

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1312

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

2

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/320-55-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/320-56-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/320-58-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/320-60-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/320-59-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/320-61-0x0000000000401920-mapping.dmp

Download
memory/320-64-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/772-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download
memory/772-62-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads