98bfea65135d407cb863d36545adaf3c2095237ed5bd7be0ba3eb9e5344c9400

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 12:21

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General

Target

7fd2be6cbc7bd18cd0e7c39756e5ba51.exe
Size

293KB
MD5

7fd2be6cbc7bd18cd0e7c39756e5ba51
SHA1

06b261411dfc42f29d7eb86bd4087335eadaa439
SHA256

98bfea65135d407cb863d36545adaf3c2095237ed5bd7be0ba3eb9e5344c9400
SHA512

03e268aff42d10b5d5a09ed774e79156ebcb6b5d4da61a27d425304662954fbc3cb9046e934365dfdc7256082aaee54f7712ef0e4c278401f5391363c9617e8d
SSDEEP

6144:a7W5LJ+GNCZ795pfpJEU2HE1/M0K+rN0djxnC/ShL8rUtw:Y/rdG25fr2jC+8aw

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\\twex.exe,"	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\twex.exe	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe
File created	C:\Windows\SysWOW64\twex.exe	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe
3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe
3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe
3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3
PID 3272 wrote to memory of 616	3272	7fd2be6cbc7bd18cd0e7c39756e5ba51.exe	3

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Users\Admin\AppData\Local\Temp\7fd2be6cbc7bd18cd0e7c39756e5ba51.exe
"C:\Users\Admin\AppData\Local\Temp\7fd2be6cbc7bd18cd0e7c39756e5ba51.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3272

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/616-184-0x0000000021D20000-0x0000000021D37000-memory.dmp

Filesize
92KB

Download
memory/616-189-0x0000000021D40000-0x0000000021D57000-memory.dmp

Filesize
92KB

Download
memory/616-24-0x0000000021920000-0x0000000021937000-memory.dmp

Filesize
92KB

Download
memory/616-29-0x0000000021940000-0x0000000021957000-memory.dmp

Filesize
92KB

Download
memory/616-34-0x0000000021960000-0x0000000021977000-memory.dmp

Filesize
92KB

Download
memory/616-39-0x0000000021980000-0x0000000021997000-memory.dmp

Filesize
92KB

Download
memory/616-44-0x00000000219A0000-0x00000000219B7000-memory.dmp

Filesize
92KB

Download
memory/616-49-0x00000000219C0000-0x00000000219D7000-memory.dmp

Filesize
92KB

Download
memory/616-54-0x00000000219E0000-0x00000000219F7000-memory.dmp

Filesize
92KB

Download
memory/616-59-0x0000000021A00000-0x0000000021A17000-memory.dmp

Filesize
92KB

Download
memory/616-64-0x0000000021A20000-0x0000000021A37000-memory.dmp

Filesize
92KB

Download
memory/616-69-0x0000000021A40000-0x0000000021A57000-memory.dmp

Filesize
92KB

Download
memory/616-74-0x0000000021A60000-0x0000000021A77000-memory.dmp

Filesize
92KB

Download
memory/616-79-0x0000000021A80000-0x0000000021A97000-memory.dmp

Filesize
92KB

Download
memory/616-84-0x0000000021AA0000-0x0000000021AB7000-memory.dmp

Filesize
92KB

Download
memory/616-89-0x0000000021AC0000-0x0000000021AD7000-memory.dmp

Filesize
92KB

Download
memory/616-94-0x0000000021AE0000-0x0000000021AF7000-memory.dmp

Filesize
92KB

Download
memory/616-99-0x0000000021B00000-0x0000000021B17000-memory.dmp

Filesize
92KB

Download
memory/616-104-0x0000000021B20000-0x0000000021B37000-memory.dmp

Filesize
92KB

Download
memory/616-109-0x0000000021B40000-0x0000000021B57000-memory.dmp

Filesize
92KB

Download
memory/616-114-0x0000000021B60000-0x0000000021B77000-memory.dmp

Filesize
92KB

Download
memory/616-119-0x0000000021B80000-0x0000000021B97000-memory.dmp

Filesize
92KB

Download
memory/616-124-0x0000000021BA0000-0x0000000021BB7000-memory.dmp

Filesize
92KB

Download
memory/616-129-0x0000000021BC0000-0x0000000021BD7000-memory.dmp

Filesize
92KB

Download
memory/616-134-0x0000000021BE0000-0x0000000021BF7000-memory.dmp

Filesize
92KB

Download
memory/616-139-0x0000000021C00000-0x0000000021C17000-memory.dmp

Filesize
92KB

Download
memory/616-144-0x0000000021C20000-0x0000000021C37000-memory.dmp

Filesize
92KB

Download
memory/616-149-0x0000000021C40000-0x0000000021C57000-memory.dmp

Filesize
92KB

Download
memory/616-154-0x0000000021C60000-0x0000000021C77000-memory.dmp

Filesize
92KB

Download
memory/616-159-0x0000000021C80000-0x0000000021C97000-memory.dmp

Filesize
92KB

Download
memory/616-164-0x0000000021CA0000-0x0000000021CB7000-memory.dmp

Filesize
92KB

Download
memory/616-169-0x0000000021CC0000-0x0000000021CD7000-memory.dmp

Filesize
92KB

Download
memory/616-174-0x0000000021CE0000-0x0000000021CF7000-memory.dmp

Filesize
92KB

Download
memory/616-194-0x0000000021D60000-0x0000000021D77000-memory.dmp

Filesize
92KB

Download
memory/616-19-0x0000000021900000-0x0000000021917000-memory.dmp

Filesize
92KB

Download
memory/616-14-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/616-179-0x0000000021D00000-0x0000000021D17000-memory.dmp

Filesize
92KB

Download
memory/616-199-0x0000000021D80000-0x0000000021D97000-memory.dmp

Filesize
92KB

Download
memory/616-204-0x0000000021DA0000-0x0000000021DB7000-memory.dmp

Filesize
92KB

Download
memory/616-209-0x0000000021DC0000-0x0000000021DD7000-memory.dmp

Filesize
92KB

Download
memory/616-214-0x0000000021DE0000-0x0000000021DF7000-memory.dmp

Filesize
92KB

Download
memory/616-219-0x0000000021E00000-0x0000000021E17000-memory.dmp

Filesize
92KB

Download
memory/616-224-0x0000000021E20000-0x0000000021E37000-memory.dmp

Filesize
92KB

Download
memory/616-229-0x0000000021E40000-0x0000000021E57000-memory.dmp

Filesize
92KB

Download
memory/616-234-0x0000000021E60000-0x0000000021E77000-memory.dmp

Filesize
92KB

Download
memory/616-239-0x0000000021E80000-0x0000000021E97000-memory.dmp

Filesize
92KB

Download
memory/616-244-0x0000000021EA0000-0x0000000021EB7000-memory.dmp

Filesize
92KB

Download
memory/616-249-0x0000000021EC0000-0x0000000021ED7000-memory.dmp

Filesize
92KB

Download
memory/616-254-0x0000000021EE0000-0x0000000021EF7000-memory.dmp

Filesize
92KB

Download
memory/616-259-0x0000000021F00000-0x0000000021F17000-memory.dmp

Filesize
92KB

Download
memory/616-264-0x0000000021F20000-0x0000000021F37000-memory.dmp

Filesize
92KB

Download
memory/616-269-0x0000000021F40000-0x0000000021F57000-memory.dmp

Filesize
92KB

Download
memory/616-274-0x0000000021F60000-0x0000000021F77000-memory.dmp

Filesize
92KB

Download
memory/616-279-0x0000000021F80000-0x0000000021F97000-memory.dmp

Filesize
92KB

Download
memory/616-284-0x0000000021FA0000-0x0000000021FB7000-memory.dmp

Filesize
92KB

Download
memory/616-289-0x0000000021FC0000-0x0000000021FD7000-memory.dmp

Filesize
92KB

Download
memory/616-294-0x0000000021FE0000-0x0000000021FF7000-memory.dmp

Filesize
92KB

Download
memory/616-299-0x0000000022000000-0x0000000022017000-memory.dmp

Filesize
92KB

Download
memory/616-304-0x0000000022020000-0x0000000022037000-memory.dmp

Filesize
92KB

Download
memory/616-309-0x0000000022040000-0x0000000022057000-memory.dmp

Filesize
92KB

Download
memory/616-314-0x0000000022060000-0x0000000022077000-memory.dmp

Filesize
92KB

Download
memory/616-319-0x0000000022080000-0x0000000022097000-memory.dmp

Filesize
92KB

Download
memory/616-324-0x00000000220A0000-0x00000000220B7000-memory.dmp

Filesize
92KB

Download
memory/616-329-0x00000000220C0000-0x00000000220D7000-memory.dmp

Filesize
92KB

Download
memory/3272-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3272-1-0x000000007FE40000-0x000000007FE41000-memory.dmp

Filesize
4KB

Download
memory/3272-2-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3272-4-0x00000000001C0000-0x00000000001D2000-memory.dmp

Filesize
72KB

Download
memory/3272-5-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download