1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76

Analysis

max time kernel
98s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 03:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe
Size

350KB
MD5

f556f0c81931aa9bb75410f2e4a60360
SHA1

601315fb82e5dcfc17c8fdb006338c5eee01bdcc
SHA256

1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76
SHA512

0566cda908ddd89ab248e00dcb2de5fea781487e24ad732a18ed3e954d7036c8e7bda68c607446f0b3e54492cdcbed668d2b0852ed910bbebb53f0a722a152a1
SSDEEP

6144:JVTQySiuxLxeHs/4UvcZSeNH4ikRo6S5W3v71TLnOxV8SyuiNu:DSiieHs/KeoHkzxOxqSyj

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
632	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\8fcd7389 = "C:\\Windows\\apppatch\\svchost.exe"	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\8fcd7389 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4788	632	WerFault.exe	82

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	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
632	svchost.exe
632	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3956	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 632	3956	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe	82
PID 3956 wrote to memory of 632	3956	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe	82
PID 3956 wrote to memory of 632	3956	1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe	82

C:\Users\Admin\AppData\Local\Temp\1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe
"C:\Users\Admin\AppData\Local\Temp\1576056bd67d0b352b12967a2a4143d110c512718ac74ed68afeecc9c23f4c76N.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3956
- 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:632
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 792
    3⤵
    - Program crash
    PID:4788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 632 -ip 632
1⤵
PID:4084

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

Loading Replay Monitor...

Downloads

C:\Windows\apppatch\svchost.exe

Filesize
350KB

MD5
2402bf7c415c224034fe8fe9f4ff3dcb

SHA1
f4f8d901f1a9acec6b3d004d00790cfc05e24f99

SHA256
651dc7d50fcbbae07cf5321233987218dce99f0eaeae02b9ad9272fca0b953c7

SHA512
e171630c383e9b9515c39c92861789317a98366452f47470653996125bbef9c2ab9ba1565c3f7e6760ecd4401a79bc6d1885dae4d4c1d6635c488ceaa766fc01

Download Submit
memory/632-10-0x0000000003500000-0x000000000354A000-memory.dmp

Filesize
296KB

Download
memory/632-13-0x0000000003590000-0x00000000035E8000-memory.dmp

Filesize
352KB

Download
memory/632-16-0x0000000003590000-0x00000000035E8000-memory.dmp

Filesize
352KB

Download
memory/632-14-0x0000000003590000-0x00000000035E8000-memory.dmp

Filesize
352KB

Download
memory/632-24-0x0000000003590000-0x00000000035E8000-memory.dmp

Filesize
352KB

Download
memory/3956-9-0x0000000000820000-0x0000000000889000-memory.dmp

Filesize
420KB

Download