3f29506cfcb14e4b925269214abd8cc49c581746dc497c5b7901c11cd95a809d

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 03:05

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General

Target

25aac87240bdde5af90f3008e6190178.exe
Size

32KB
MD5

25aac87240bdde5af90f3008e6190178
SHA1

167828a1036fb1024ef7dd08f7c70225f4bb59c7
SHA256

3f29506cfcb14e4b925269214abd8cc49c581746dc497c5b7901c11cd95a809d
SHA512

24852d799b3268059d83adbda88853ed149fd6054a8243cd81d68cbb6d03dbd8ae02adf8a70ee740bba0e435f500932b40a5388204fb496594ef7e13820daede
SSDEEP

768:RtfibWjN1TTXq8Y07BiKBLT1kkZtyaY0:/RDPz3uab

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2968	25aac87240bdde5af90f3008e6190178.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RUN\MsIMMs32 = "C:\\Windows\\MsIMMs32.exe"	25aac87240bdde5af90f3008e6190178.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MsIMMs32.dll	25aac87240bdde5af90f3008e6190178.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\MsIMMs32.exe	25aac87240bdde5af90f3008e6190178.exe
File opened for modification	C:\Windows\MsIMMs32.exe	25aac87240bdde5af90f3008e6190178.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2968	25aac87240bdde5af90f3008e6190178.exe
2968	25aac87240bdde5af90f3008e6190178.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2968	25aac87240bdde5af90f3008e6190178.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 1360	2968	25aac87240bdde5af90f3008e6190178.exe	7
PID 2968 wrote to memory of 1360	2968	25aac87240bdde5af90f3008e6190178.exe	7

C:\Users\Admin\AppData\Local\Temp\25aac87240bdde5af90f3008e6190178.exe
"C:\Users\Admin\AppData\Local\Temp\25aac87240bdde5af90f3008e6190178.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2968

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1360-9-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1360-5-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1360-2-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/2968-12-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2968-13-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download