d12e401525c316a381a7521d1d411dde756450f73732c03008f4c9c850ef3134

Analysis

max time kernel
148s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 03:47

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General

Target

8e23232583859fe5e31caf3db27fb6f6.exe
Size

61KB
MD5

8e23232583859fe5e31caf3db27fb6f6
SHA1

99da5bcef8c09cb87e0fac28ea3eb094fb9186fc
SHA256

d12e401525c316a381a7521d1d411dde756450f73732c03008f4c9c850ef3134
SHA512

9954b029856f8e8c8130433d91d3a85bf9dc6bcd76ff8659cda0931c79e2e82daeaa5afce32af948f10a734cf122c70272d5a57a1f71bd25d0db9ab4bf8637a3
SSDEEP

1536:brqWVs15u2n21h5GvyJ2McgOxFVdTpFYcPs/7xYpyg:BVeZ0VwFVdFet/2g

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4944	SmcSVR.exe

Adds Run key to start application 2 TTPs 4 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\RunServices\SmcSVR = "C:\\Windows\\SmcSVR.exe"	8e23232583859fe5e31caf3db27fb6f6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmcSVR = "C:\\Windows\\SmcSVR.exe"	8e23232583859fe5e31caf3db27fb6f6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\SmcSVR = "C:\\Windows\\SmcSVR.exe"	SmcSVR.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmcSVR = "C:\\Windows\\SmcSVR.exe"	SmcSVR.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SmcSVR.exe	8e23232583859fe5e31caf3db27fb6f6.exe
File opened for modification	C:\Windows\SmcSVR.exe	8e23232583859fe5e31caf3db27fb6f6.exe
File created	C:\Windows\SmcSVR.exe	SmcSVR.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\LIG	SmcSVR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\LIG\Fo	SmcSVR.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\LIG\Fo = "1"	SmcSVR.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe
4944	SmcSVR.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4944	SmcSVR.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 4944	436	8e23232583859fe5e31caf3db27fb6f6.exe	85
PID 436 wrote to memory of 4944	436	8e23232583859fe5e31caf3db27fb6f6.exe	85
PID 436 wrote to memory of 4944	436	8e23232583859fe5e31caf3db27fb6f6.exe	85

C:\Users\Admin\AppData\Local\Temp\8e23232583859fe5e31caf3db27fb6f6.exe
"C:\Users\Admin\AppData\Local\Temp\8e23232583859fe5e31caf3db27fb6f6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:436
- C:\Windows\SmcSVR.exe
  C:\Windows\SmcSVR.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:4944

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

C:\Windows\SmcSVR.exe

Filesize
61KB

MD5
8e23232583859fe5e31caf3db27fb6f6

SHA1
99da5bcef8c09cb87e0fac28ea3eb094fb9186fc

SHA256
d12e401525c316a381a7521d1d411dde756450f73732c03008f4c9c850ef3134

SHA512
9954b029856f8e8c8130433d91d3a85bf9dc6bcd76ff8659cda0931c79e2e82daeaa5afce32af948f10a734cf122c70272d5a57a1f71bd25d0db9ab4bf8637a3

Download Submit
memory/436-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-5-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-6-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download