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
2560	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2240	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
2240	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.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\4915f82 = "C:\\Windows\\apppatch\\svchost.exe"	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\4915f82 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
File opened for modification	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 1 IoCs

pid	Process
2560	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2240	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2560	2240	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe	30
PID 2240 wrote to memory of 2560	2240	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe	30
PID 2240 wrote to memory of 2560	2240	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe	30
PID 2240 wrote to memory of 2560	2240	b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe	30

C:\Users\Admin\AppData\Local\Temp\b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe
"C:\Users\Admin\AppData\Local\Temp\b8ed05d65b6c38c3c8516a020a758266cf37fbe499a475b6ae5ff9e1b6c677c7.exe"
1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2240
- 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:2560

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

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Downloads

C:\Windows\AppPatch\svchost.exe

Filesize
348KB

MD5
99fdc3783a563c5a17d4ca7baf0bc294

SHA1
66859ac86037258947d0fc40220cd0a1b99dadab

SHA256
b29c331d5121a5d34d5863ebf8bd52ef5d24059326f8c061cf08ad28d352fcc0

SHA512
d1b5e9f46db8fa7d4c771cf518735f5024ab09adea0e5b2836f99e12d0f1db6e516a80725382b0e3d24e8e21c6f8221377e96e6b4c41654a42761566350204e4

Download Submit
memory/2240-12-0x0000000000D20000-0x0000000000D8A000-memory.dmp

Filesize
424KB

Download
memory/2560-14-0x0000000000350000-0x00000000003E0000-memory.dmp

Filesize
576KB

Download
memory/2560-22-0x0000000000350000-0x00000000003E0000-memory.dmp

Filesize
576KB

Download
memory/2560-20-0x0000000000350000-0x00000000003E0000-memory.dmp

Filesize
576KB

Download
memory/2560-18-0x0000000000350000-0x00000000003E0000-memory.dmp

Filesize
576KB

Download
memory/2560-16-0x0000000000350000-0x00000000003E0000-memory.dmp

Filesize
576KB

Download
memory/2560-24-0x0000000000350000-0x00000000003E0000-memory.dmp

Filesize
576KB

Download
memory/2560-30-0x00000000007B0000-0x000000000084F000-memory.dmp

Filesize
636KB

Download
memory/2560-28-0x00000000007B0000-0x000000000084F000-memory.dmp

Filesize
636KB

Download
memory/2560-27-0x00000000007B0000-0x000000000084F000-memory.dmp

Filesize
636KB

Download
memory/2560-43-0x00000000007B0000-0x000000000084F000-memory.dmp

Filesize
636KB

Download
memory/2560-72-0x00000000007B0000-0x000000000084F000-memory.dmp

Filesize
636KB

Download
memory/2560-71-0x00000000027E0000-0x00000000027E1000-memory.dmp

Filesize
4KB

Download
memory/2560-69-0x0000000002640000-0x0000000002641000-memory.dmp

Filesize
4KB

Download
memory/2560-68-0x00000000027D0000-0x00000000027D1000-memory.dmp

Filesize
4KB

Download
memory/2560-64-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/2560-62-0x0000000000750000-0x0000000000751000-memory.dmp

Filesize
4KB

Download
memory/2560-61-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/2560-58-0x0000000000750000-0x0000000000751000-memory.dmp

Filesize
4KB

Download
memory/2560-57-0x0000000000740000-0x0000000000741000-memory.dmp

Filesize
4KB

Download
memory/2560-55-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/2560-54-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/2560-51-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/2560-50-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/2560-48-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2560-47-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2560-46-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2560-44-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads