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
2056	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\d73eb590 = "C:\\Windows\\apppatch\\svchost.exe"	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\d73eb590 = "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 2 IoCs

pid	Process
2056	svchost.exe
2056	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4396	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 2056	4396	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe	84
PID 4396 wrote to memory of 2056	4396	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe	84
PID 4396 wrote to memory of 2056	4396	bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe	84

C:\Users\Admin\AppData\Local\Temp\bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe
"C:\Users\Admin\AppData\Local\Temp\bcf6ab7b42849d6693a6c53faad0de7a143cfc148bf7e495f9e6fce2d4674cce.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4396
- 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:2056

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
338KB

MD5
cd38434752b253bcd04504bd5bb59eb8

SHA1
c1817f3e69c06ef06b4b97757989822070baba69

SHA256
91e135b7690d2f7e5096b8ba2cd1bab55e7d9dffd1b967e3bda3a39014e1acac

SHA512
189466483af365c1ddf590fd19a84a4d706f874e37b51ff1ed020eea1a86e8c532cd9c7b46d89ed48ecc818c9978362099771bf13d19bc5e2e397ddb07c68dc7

Download Submit
memory/2056-42-0x0000000004550000-0x0000000004551000-memory.dmp

Filesize
4KB

Download
memory/2056-10-0x0000000003400000-0x000000000348C000-memory.dmp

Filesize
560KB

Download
memory/2056-11-0x00000000035D0000-0x000000000366B000-memory.dmp

Filesize
620KB

Download
memory/2056-13-0x00000000035D0000-0x000000000366B000-memory.dmp

Filesize
620KB

Download
memory/2056-15-0x00000000035D0000-0x000000000366B000-memory.dmp

Filesize
620KB

Download
memory/2056-70-0x0000000004610000-0x0000000004611000-memory.dmp

Filesize
4KB

Download
memory/2056-71-0x0000000004600000-0x0000000004601000-memory.dmp

Filesize
4KB

Download
memory/2056-66-0x00000000045F0000-0x00000000045F1000-memory.dmp

Filesize
4KB

Download
memory/2056-64-0x00000000045D0000-0x00000000045D1000-memory.dmp

Filesize
4KB

Download
memory/2056-63-0x00000000045E0000-0x00000000045E1000-memory.dmp

Filesize
4KB

Download
memory/2056-59-0x00000000045C0000-0x00000000045C1000-memory.dmp

Filesize
4KB

Download
memory/2056-57-0x00000000045A0000-0x00000000045A1000-memory.dmp

Filesize
4KB

Download
memory/2056-56-0x00000000045B0000-0x00000000045B1000-memory.dmp

Filesize
4KB

Download
memory/2056-53-0x00000000045A0000-0x00000000045A1000-memory.dmp

Filesize
4KB

Download
memory/2056-50-0x0000000004570000-0x0000000004571000-memory.dmp

Filesize
4KB

Download
memory/2056-45-0x0000000004560000-0x0000000004561000-memory.dmp

Filesize
4KB

Download
memory/2056-81-0x00000000035D0000-0x000000000366B000-memory.dmp

Filesize
620KB

Download
memory/2056-43-0x0000000004540000-0x0000000004541000-memory.dmp

Filesize
4KB

Download
memory/2056-60-0x00000000045D0000-0x00000000045D1000-memory.dmp

Filesize
4KB

Download
memory/2056-36-0x0000000004510000-0x0000000004511000-memory.dmp

Filesize
4KB

Download
memory/2056-35-0x0000000004520000-0x0000000004521000-memory.dmp

Filesize
4KB

Download
memory/2056-32-0x0000000004510000-0x0000000004511000-memory.dmp

Filesize
4KB

Download
memory/2056-31-0x0000000004500000-0x0000000004501000-memory.dmp

Filesize
4KB

Download
memory/2056-29-0x00000000044E0000-0x00000000044E1000-memory.dmp

Filesize
4KB

Download
memory/2056-28-0x00000000044F0000-0x00000000044F1000-memory.dmp

Filesize
4KB

Download
memory/2056-25-0x00000000044E0000-0x00000000044E1000-memory.dmp

Filesize
4KB

Download
memory/2056-24-0x00000000044D0000-0x00000000044D1000-memory.dmp

Filesize
4KB

Download
memory/2056-22-0x00000000044B0000-0x00000000044B1000-memory.dmp

Filesize
4KB

Download
memory/2056-38-0x0000000004530000-0x0000000004531000-memory.dmp

Filesize
4KB

Download
memory/2056-52-0x0000000004590000-0x0000000004591000-memory.dmp

Filesize
4KB

Download
memory/2056-49-0x0000000004580000-0x0000000004581000-memory.dmp

Filesize
4KB

Download
memory/2056-46-0x0000000004570000-0x0000000004571000-memory.dmp

Filesize
4KB

Download
memory/2056-21-0x00000000044C0000-0x00000000044C1000-memory.dmp

Filesize
4KB

Download
memory/2056-20-0x00000000044C0000-0x00000000044C1000-memory.dmp

Filesize
4KB

Download
memory/2056-18-0x00000000044B0000-0x00000000044B1000-memory.dmp

Filesize
4KB

Download
memory/4396-9-0x0000000000490000-0x00000000004F7000-memory.dmp

Filesize
412KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads