fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/09/2024, 01:57

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General

Target

fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe
Size

156KB
MD5

6f322f479f59054e175da2aa55a8cb4b
SHA1

5f8cbfcf30296a8a37686710ebab2a9cd709846f
SHA256

fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df
SHA512

8542de14a0180f32260d6df7ffbab3ee0b68e78a4664f422e3ae2ff16d4b2aefa0bec7f10e07a10da521ca76e2a774237121404d17cf24b0ba7265d6441495b7
SSDEEP

3072:ikvM+OOUYjo0i2JdvIArAVMBWfvgfJYraeL/qHQl:RM+Fo2JxeMw3g42HQl

Score

10^/10

discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\apppatch\\svchost.exe,"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3480	svchost.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\e23407ed = "C:\\Windows\\apppatch\\svchost.exe"	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\e23407ed = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe
3480	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4400	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 3480	4400	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe	82
PID 4400 wrote to memory of 3480	4400	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe	82
PID 4400 wrote to memory of 3480	4400	fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe	82

C:\Users\Admin\AppData\Local\Temp\fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe
"C:\Users\Admin\AppData\Local\Temp\fe54dcf5c42f531faa664199ef6bd107a731d84e89394dedf05ccd927128f7df.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

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

C:\Windows\apppatch\svchost.exe

Filesize
156KB

MD5
9263eb7e6896fc32e297c63bf6586936

SHA1
4f0c9516859d33eab1ad3c32152c51cb319f4495

SHA256
41e752879761cdd14c3822122f132be62b89cb36891a3484941ab5d3ad18f44b

SHA512
cec921212db8240c87f3df12700caf1140916a7ec7c416640b27621bb09b14df18023107e32f3141c7b51a07578afdb72f9e22dcff4a80133979379560de3e79

Download Submit
memory/3480-10-0x00000000035B0000-0x00000000035F6000-memory.dmp

Filesize
280KB

Download
memory/3480-13-0x0000000003940000-0x000000000398A000-memory.dmp

Filesize
296KB

Download
memory/3480-17-0x0000000003940000-0x000000000398A000-memory.dmp

Filesize
296KB

Download
memory/3480-14-0x0000000003940000-0x000000000398A000-memory.dmp

Filesize
296KB

Download
memory/3480-19-0x0000000003940000-0x000000000398A000-memory.dmp

Filesize
296KB

Download
memory/3480-20-0x0000000003940000-0x000000000398A000-memory.dmp

Filesize
296KB

Download
memory/4400-9-0x0000000000AF0000-0x0000000000B20000-memory.dmp

Filesize
192KB

Download