8edd55d26a408affb42afdca7b555309293e1eb1f31fb4cb6de26f6170848135

Analysis

max time kernel
170s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 02:25

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General

Target

3fa889cbc74000ec80ebe1184e06b00d.exe
Size

392KB
MD5

3fa889cbc74000ec80ebe1184e06b00d
SHA1

15986ea4e180838e6f5d1b53874fffab7f7b7a42
SHA256

8edd55d26a408affb42afdca7b555309293e1eb1f31fb4cb6de26f6170848135
SHA512

1e55e28e6655f8ff9bafd6d5de90f2feaa9682342aa61f529bab8ce8380521778b3aed235bc38df392ed3e1e49c3b38ad40d12db0b3a61c782c94a42f4dedffe
SSDEEP

6144:yEsNEdMOqOuFfgWvUYii/s9MPh0Fj6F+oSPqSsIZpbm11JCRpdZiNXlBLxK+moVU:WH/FLvUYl/sSMe0oSjrqnKEzdKb5

Score

10^/10

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\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\ntos.exe,"	3fa889cbc74000ec80ebe1184e06b00d.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	3fa889cbc74000ec80ebe1184e06b00d.exe
File created	C:\Windows\SysWOW64\ntos.exe	3fa889cbc74000ec80ebe1184e06b00d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3088	3fa889cbc74000ec80ebe1184e06b00d.exe
3088	3fa889cbc74000ec80ebe1184e06b00d.exe
3088	3fa889cbc74000ec80ebe1184e06b00d.exe
3088	3fa889cbc74000ec80ebe1184e06b00d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	3fa889cbc74000ec80ebe1184e06b00d.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3
PID 3088 wrote to memory of 636	3088	3fa889cbc74000ec80ebe1184e06b00d.exe	3

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:636

C:\Users\Admin\AppData\Local\Temp\3fa889cbc74000ec80ebe1184e06b00d.exe
"C:\Users\Admin\AppData\Local\Temp\3fa889cbc74000ec80ebe1184e06b00d.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/636-12-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/636-17-0x0000000005700000-0x0000000005725000-memory.dmp

Filesize
148KB

Download
memory/636-22-0x0000000005730000-0x0000000005755000-memory.dmp

Filesize
148KB

Download
memory/636-27-0x0000000005760000-0x0000000005785000-memory.dmp

Filesize
148KB

Download
memory/636-32-0x0000000005790000-0x00000000057B5000-memory.dmp

Filesize
148KB

Download
memory/636-37-0x00000000057C0000-0x00000000057E5000-memory.dmp

Filesize
148KB

Download
memory/636-42-0x00000000057F0000-0x0000000005815000-memory.dmp

Filesize
148KB

Download
memory/636-47-0x0000000005820000-0x0000000005845000-memory.dmp

Filesize
148KB

Download
memory/636-52-0x0000000005850000-0x0000000005875000-memory.dmp

Filesize
148KB

Download
memory/636-57-0x0000000005880000-0x00000000058A5000-memory.dmp

Filesize
148KB

Download
memory/636-62-0x00000000058B0000-0x00000000058D5000-memory.dmp

Filesize
148KB

Download
memory/636-67-0x00000000058E0000-0x0000000005905000-memory.dmp

Filesize
148KB

Download
memory/636-72-0x0000000005910000-0x0000000005935000-memory.dmp

Filesize
148KB

Download
memory/636-77-0x0000000005940000-0x0000000005965000-memory.dmp

Filesize
148KB

Download
memory/636-82-0x0000000005970000-0x0000000005995000-memory.dmp

Filesize
148KB

Download
memory/636-87-0x00000000059A0000-0x00000000059C5000-memory.dmp

Filesize
148KB

Download
memory/636-97-0x0000000005A00000-0x0000000005A25000-memory.dmp

Filesize
148KB

Download
memory/636-92-0x00000000059D0000-0x00000000059F5000-memory.dmp

Filesize
148KB

Download
memory/636-102-0x0000000005A30000-0x0000000005A55000-memory.dmp

Filesize
148KB

Download
memory/636-107-0x0000000005A60000-0x0000000005A85000-memory.dmp

Filesize
148KB

Download
memory/636-112-0x0000000005A90000-0x0000000005AB5000-memory.dmp

Filesize
148KB

Download
memory/636-117-0x0000000005AC0000-0x0000000005AE5000-memory.dmp

Filesize
148KB

Download
memory/636-122-0x0000000005AF0000-0x0000000005B15000-memory.dmp

Filesize
148KB

Download
memory/636-127-0x0000000005B20000-0x0000000005B45000-memory.dmp

Filesize
148KB

Download
memory/636-132-0x0000000005B50000-0x0000000005B75000-memory.dmp

Filesize
148KB

Download
memory/636-137-0x0000000005B80000-0x0000000005BA5000-memory.dmp

Filesize
148KB

Download
memory/636-142-0x0000000005BB0000-0x0000000005BD5000-memory.dmp

Filesize
148KB

Download
memory/636-147-0x0000000005BE0000-0x0000000005C05000-memory.dmp

Filesize
148KB

Download
memory/636-152-0x0000000005C10000-0x0000000005C35000-memory.dmp

Filesize
148KB

Download
memory/636-157-0x0000000005C40000-0x0000000005C65000-memory.dmp

Filesize
148KB

Download
memory/636-162-0x0000000005C70000-0x0000000005C95000-memory.dmp

Filesize
148KB

Download
memory/636-167-0x0000000005CA0000-0x0000000005CC5000-memory.dmp

Filesize
148KB

Download
memory/636-172-0x0000000005CD0000-0x0000000005CF5000-memory.dmp

Filesize
148KB

Download
memory/636-177-0x0000000005D00000-0x0000000005D25000-memory.dmp

Filesize
148KB

Download
memory/636-182-0x0000000005D30000-0x0000000005D55000-memory.dmp

Filesize
148KB

Download
memory/636-187-0x0000000005D60000-0x0000000005D85000-memory.dmp

Filesize
148KB

Download
memory/636-192-0x0000000005D90000-0x0000000005DB5000-memory.dmp

Filesize
148KB

Download
memory/636-197-0x0000000005DC0000-0x0000000005DE5000-memory.dmp

Filesize
148KB

Download
memory/636-202-0x0000000005DF0000-0x0000000005E15000-memory.dmp

Filesize
148KB

Download
memory/636-207-0x0000000005E20000-0x0000000005E45000-memory.dmp

Filesize
148KB

Download
memory/636-212-0x0000000005E50000-0x0000000005E75000-memory.dmp

Filesize
148KB

Download
memory/636-217-0x0000000005E80000-0x0000000005EA5000-memory.dmp

Filesize
148KB

Download
memory/636-222-0x0000000005EB0000-0x0000000005ED5000-memory.dmp

Filesize
148KB

Download
memory/636-227-0x0000000005EE0000-0x0000000005F05000-memory.dmp

Filesize
148KB

Download
memory/636-232-0x0000000005F10000-0x0000000005F35000-memory.dmp

Filesize
148KB

Download
memory/636-237-0x0000000005F40000-0x0000000005F65000-memory.dmp

Filesize
148KB

Download
memory/636-242-0x0000000005F70000-0x0000000005F95000-memory.dmp

Filesize
148KB

Download
memory/636-247-0x0000000005FA0000-0x0000000005FC5000-memory.dmp

Filesize
148KB

Download
memory/636-252-0x0000000005FD0000-0x0000000005FF5000-memory.dmp

Filesize
148KB

Download
memory/636-257-0x0000000006000000-0x0000000006025000-memory.dmp

Filesize
148KB

Download
memory/636-262-0x0000000006030000-0x0000000006055000-memory.dmp

Filesize
148KB

Download
memory/636-267-0x0000000006060000-0x0000000006085000-memory.dmp

Filesize
148KB

Download
memory/636-272-0x0000000006090000-0x00000000060B5000-memory.dmp

Filesize
148KB

Download
memory/636-277-0x00000000060C0000-0x00000000060E5000-memory.dmp

Filesize
148KB

Download
memory/636-282-0x00000000060F0000-0x0000000006115000-memory.dmp

Filesize
148KB

Download
memory/636-287-0x0000000006120000-0x0000000006145000-memory.dmp

Filesize
148KB

Download
memory/636-292-0x0000000006150000-0x0000000006175000-memory.dmp

Filesize
148KB

Download
memory/636-297-0x0000000006180000-0x00000000061A5000-memory.dmp

Filesize
148KB

Download
memory/636-302-0x00000000061B0000-0x00000000061D5000-memory.dmp

Filesize
148KB

Download
memory/636-307-0x00000000061E0000-0x0000000006205000-memory.dmp

Filesize
148KB

Download
memory/636-312-0x0000000006210000-0x0000000006235000-memory.dmp

Filesize
148KB

Download
memory/636-317-0x0000000006240000-0x0000000006265000-memory.dmp

Filesize
148KB

Download
memory/3088-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3088-1-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3088-3-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3088-2705-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download