39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18/10/2022, 06:20

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General

Target

39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
Size

355KB
MD5

391ad1263c4d56ca07e108521c964a35
SHA1

e8d2e7be0d15bdebce794a8db1192350b31f6549
SHA256

39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94
SHA512

32efa674cc9a19f65235d209924b56826b40fc9160a4ad25a09f12c51226fd9e1af1e31ad501addad38ac0b8e2eadd2ea6fa886d7d1441b1c1b6ad5e35758bf2
SSDEEP

6144:T3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:gmWhND9yJz+b1FcMLmp2ATTSsdS

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

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
1120	svchost.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\4221eaab = "\x17Š\x1b›À\n\u00ad†\"ú™µü“\x15¤WGÃk,‰©\x05œ˜%VŽúYª¿LÑHì¬Ü\n¯òùÐü!‹Ô¼ô\x05?'PÇ7À•×\x1b\\PƒÍa9\x03¬\x14\x1cµ\x13ôà\|ä·%Ã2J4H(è\f\\\u008d\rµ€úãsäËÄ„zD?\x10ÚeÅ•+Q,[Ð;„ÂD¿Óã\\K\n÷—"	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\4221eaab = "\x17Š\x1b›À\n\u00ad†\"ú™µü“\x15¤WGÃk,‰©\x05œ˜%VŽúYª¿LÑHì¬Ü\n¯òùÐü!‹Ô¼ô\x05?'PÇ7À•×\x1b\\PƒÍa9\x03¬\x14\x1cµ\x13ôà\|ä·%Ã2J4H(è\f\\\u008d\rµ€úãsäËÄ„zD?\x10ÚeÅ•+Q,[Ð;„ÂD¿Óã\\K\n÷—"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe
1120	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3528 wrote to memory of 1120	3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe	81
PID 3528 wrote to memory of 1120	3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe	81
PID 3528 wrote to memory of 1120	3528	39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe	81

C:\Users\Admin\AppData\Local\Temp\39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe
"C:\Users\Admin\AppData\Local\Temp\39b210fec0f5fcd85310aceddb8af919e566f3fb0b249323586c86cdef590d94.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - Suspicious behavior: EnumeratesProcesses
  PID:1120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\apppatch\svchost.exe

Filesize
355KB

MD5
bdce69fb5b6f14b5b9f6c15f7513b153

SHA1
34eb0be87d93f9fbde3ece6524a84e345227d759

SHA256
b4e86a624ca632d16fdb9b99bb24a1842c35d96dd1890b919ee01e689062a1f2

SHA512
50d6736be97cedc21f442a4eec2327db9b0d0631a69547bc0581cb27239ff4ea2eb63fcfdd23e001c7b2ed47deee279392d2df8cd21e838acbfb5b610864abce

Download Submit
C:\Windows\apppatch\svchost.exe

Filesize
355KB

MD5
bdce69fb5b6f14b5b9f6c15f7513b153

SHA1
34eb0be87d93f9fbde3ece6524a84e345227d759

SHA256
b4e86a624ca632d16fdb9b99bb24a1842c35d96dd1890b919ee01e689062a1f2

SHA512
50d6736be97cedc21f442a4eec2327db9b0d0631a69547bc0581cb27239ff4ea2eb63fcfdd23e001c7b2ed47deee279392d2df8cd21e838acbfb5b610864abce

Download Submit
memory/1120-135-0x00000000026E0000-0x0000000002788000-memory.dmp

Filesize
672KB

Download
memory/1120-136-0x0000000002B00000-0x0000000002BB6000-memory.dmp

Filesize
728KB

Download