b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7

General

Target

b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
Size

348KB
MD5

f20cb3e2b8a87144b6d3e21c9cf255fd
SHA1

6f85f2adeac9eb8e6dd55bf7a25a3c7cbe5baa89
SHA256

b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7
SHA512

fa6ea0228b8a2ae02ef731decfa1df286d88d3062b98f8daeb483bf5214acb52e79375fc84389febdd4e8827cfed7d718b22fee1547fa026136157aebfe9c945
SSDEEP

6144:n45rA5wSkJY8R/kpM3kRaWV/wEsNbqw8QlRTFiPurp+EStS3sthe:hwSkB/kBubqw8vm+EKS3se

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
2624	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\1acabc3f = "C:\\Windows\\apppatch\\svchost.exe"	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\1acabc3f = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\apppatch\svchost.exe	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
File created	C:\Windows\apppatch\svchost.exe	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.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	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2624	svchost.exe
2624	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
496	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 496 wrote to memory of 2624	496	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe	83
PID 496 wrote to memory of 2624	496	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe	83
PID 496 wrote to memory of 2624	496	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe	83

C:\Users\Admin\AppData\Local\Temp\b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
"C:\Users\Admin\AppData\Local\Temp\b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:496
- 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:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\apppatch\svchost.exe

Filesize
348KB

MD5
3df52988e26db927695aa5462e1020ea

SHA1
2a4071ab0692b45a5d3460819b33a5c5a7555642

SHA256
9751c6b2d92f3f886bc95941f3c54c3dcbd1c118513318c205f5f771fc117652

SHA512
464a3005fb740491ac4ca25cc60b3c6bbc481f24628a11e3b3444ca18482d01399032c08a3b03329a5e87a1e0b836f9126eb0f80bee23c7241050594913a8c41

Download Submit
memory/496-8-0x0000000000950000-0x00000000009BA000-memory.dmp

Filesize
424KB

Download
memory/2624-10-0x0000000002C00000-0x0000000002C90000-memory.dmp

Filesize
576KB

Download
memory/2624-13-0x0000000002D90000-0x0000000002E2F000-memory.dmp

Filesize
636KB

Download
memory/2624-14-0x0000000002D90000-0x0000000002E2F000-memory.dmp

Filesize
636KB

Download
memory/2624-16-0x0000000002D90000-0x0000000002E2F000-memory.dmp

Filesize
636KB

Download
memory/2624-23-0x0000000002D90000-0x0000000002E2F000-memory.dmp

Filesize
636KB

Download
memory/2624-52-0x0000000002D90000-0x0000000002E2F000-memory.dmp

Filesize
636KB

Download
memory/2624-51-0x0000000003E30000-0x0000000003E31000-memory.dmp

Filesize
4KB

Download
memory/2624-49-0x0000000003E10000-0x0000000003E11000-memory.dmp

Filesize
4KB

Download
memory/2624-48-0x0000000003E20000-0x0000000003E21000-memory.dmp

Filesize
4KB

Download
memory/2624-44-0x0000000003E00000-0x0000000003E01000-memory.dmp

Filesize
4KB

Download
memory/2624-42-0x0000000003DE0000-0x0000000003DE1000-memory.dmp

Filesize
4KB

Download
memory/2624-41-0x0000000003DF0000-0x0000000003DF1000-memory.dmp

Filesize
4KB

Download
memory/2624-38-0x0000000003DE0000-0x0000000003DE1000-memory.dmp

Filesize
4KB

Download
memory/2624-37-0x0000000003DD0000-0x0000000003DD1000-memory.dmp

Filesize
4KB

Download
memory/2624-35-0x0000000003DB0000-0x0000000003DB1000-memory.dmp

Filesize
4KB

Download
memory/2624-34-0x0000000003DC0000-0x0000000003DC1000-memory.dmp

Filesize
4KB

Download
memory/2624-31-0x0000000003DB0000-0x0000000003DB1000-memory.dmp

Filesize
4KB

Download
memory/2624-30-0x0000000003DA0000-0x0000000003DA1000-memory.dmp

Filesize
4KB

Download
memory/2624-28-0x0000000003D80000-0x0000000003D81000-memory.dmp

Filesize
4KB

Download
memory/2624-27-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/2624-26-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/2624-24-0x0000000003D80000-0x0000000003D81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads