bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce

General

Target

bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
Size

338KB
MD5

7731195245ce0fa2315f570c08705ea5
SHA1

342f4febc4ba3c227b4347c63c45e6edfa64a426
SHA256

bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce
SHA512

4ab03abe0956345ac21aa5e0e4e39833e8d55892c546a632b0a5da7186b560e458ab46fd7f054ea5d13e0c47d2826ca3ed6729f234a8791bd1d62002adb62d0e
SSDEEP

6144:FExz45SS77IQi8Dq+9fXphN2LfjEcYzaWqr57Q7Xwxc4SQjWvvf:fSS71Dq+pcYWWqtfxvSQj2f

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
2408	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
1920	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
1920	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.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\779dc9a4 = "C:\\Windows\\apppatch\\svchost.exe"	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\779dc9a4 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.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	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2408	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1920	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 2408	1920	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe	30
PID 1920 wrote to memory of 2408	1920	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe	30
PID 1920 wrote to memory of 2408	1920	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe	30
PID 1920 wrote to memory of 2408	1920	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe	30

C:\Users\Admin\AppData\Local\Temp\bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
"C:\Users\Admin\AppData\Local\Temp\bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.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:1920
- 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:2408

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

\Windows\AppPatch\svchost.exe

Filesize
338KB

MD5
9d9ffaa1ce07ff012b0d9301c1859058

SHA1
f7d0962395a2403ba4e56c5a0d5e8f4f2cdc0ae0

SHA256
70e65a948dd360ecdc10444cb0362e67ce6b82fe47bd68f99f16b673a9f8b3b3

SHA512
3de3775948c41bf12834becc8c7cfde0c971bc787fdee16f40606977ae052f267ed897e9523c276f3b9d234849e2d0c77280e88d5e2dcbca86ff4a3342d324a9

Download Submit
memory/1920-12-0x0000000000E10000-0x0000000000E77000-memory.dmp

Filesize
412KB

Download
memory/2408-16-0x00000000003B0000-0x000000000043C000-memory.dmp

Filesize
560KB

Download
memory/2408-24-0x00000000003B0000-0x000000000043C000-memory.dmp

Filesize
560KB

Download
memory/2408-22-0x00000000003B0000-0x000000000043C000-memory.dmp

Filesize
560KB

Download
memory/2408-20-0x00000000003B0000-0x000000000043C000-memory.dmp

Filesize
560KB

Download
memory/2408-18-0x00000000003B0000-0x000000000043C000-memory.dmp

Filesize
560KB

Download
memory/2408-14-0x00000000003B0000-0x000000000043C000-memory.dmp

Filesize
560KB

Download
memory/2408-25-0x0000000000600000-0x000000000069B000-memory.dmp

Filesize
620KB

Download
memory/2408-32-0x0000000000600000-0x000000000069B000-memory.dmp

Filesize
620KB

Download
memory/2408-29-0x0000000000600000-0x000000000069B000-memory.dmp

Filesize
620KB

Download
memory/2408-27-0x0000000000600000-0x000000000069B000-memory.dmp

Filesize
620KB

Download
memory/2408-33-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2408-75-0x0000000000A80000-0x0000000000A81000-memory.dmp

Filesize
4KB

Download
memory/2408-74-0x0000000000A70000-0x0000000000A71000-memory.dmp

Filesize
4KB

Download
memory/2408-72-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download
memory/2408-71-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/2408-68-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download
memory/2408-67-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/2408-65-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/2408-64-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/2408-61-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/2408-60-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/2408-58-0x00000000006A0000-0x00000000006A1000-memory.dmp

Filesize
4KB

Download
memory/2408-57-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/2408-53-0x00000000005F0000-0x00000000005F1000-memory.dmp

Filesize
4KB

Download
memory/2408-51-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download
memory/2408-50-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/2408-47-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download
memory/2408-46-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/2408-44-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/2408-43-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/2408-40-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/2408-39-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/2408-37-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2408-36-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/2408-35-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/2408-96-0x0000000000600000-0x000000000069B000-memory.dmp

Filesize
620KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads