e5cc6025efa86c63fce99b1b9d9a791115356cdb47b92c595a9b74ab7cb61479

Analysis

max time kernel
159s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 13:11

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General

Target

154f822510cf404a5c39135ef30786b9.exe
Size

48KB
MD5

154f822510cf404a5c39135ef30786b9
SHA1

37fcbfb7f5ee923f28df7249f0f2003adfb30ed7
SHA256

e5cc6025efa86c63fce99b1b9d9a791115356cdb47b92c595a9b74ab7cb61479
SHA512

2f71415965d915e0b8b4e858e0feaedf53c3bf6c313587a78115820b32c75610151ee0fbea5e614287bf6f7089d754e54ca0bdd82d8f070985003301350f2dd6
SSDEEP

1536:NYFmzhXmvK8tLorax/l/kBSKdZ1xU9pR2WxH26ZvY7Q:9NAVF/koAxavW6ZvYM

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,"	154f822510cf404a5c39135ef30786b9.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	154f822510cf404a5c39135ef30786b9.exe
File created	C:\Windows\SysWOW64\ntos.exe	154f822510cf404a5c39135ef30786b9.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4732	154f822510cf404a5c39135ef30786b9.exe
4732	154f822510cf404a5c39135ef30786b9.exe
4732	154f822510cf404a5c39135ef30786b9.exe
4732	154f822510cf404a5c39135ef30786b9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4732	154f822510cf404a5c39135ef30786b9.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6
PID 4732 wrote to memory of 616	4732	154f822510cf404a5c39135ef30786b9.exe	6

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

C:\Users\Admin\AppData\Local\Temp\154f822510cf404a5c39135ef30786b9.exe
"C:\Users\Admin\AppData\Local\Temp\154f822510cf404a5c39135ef30786b9.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4732

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/616-11-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/616-16-0x000000000EDE0000-0x000000000EE07000-memory.dmp

Filesize
156KB

Download
memory/616-21-0x000000000EE10000-0x000000000EE37000-memory.dmp

Filesize
156KB

Download
memory/616-26-0x000000000EE40000-0x000000000EE67000-memory.dmp

Filesize
156KB

Download
memory/616-31-0x000000000EE70000-0x000000000EE97000-memory.dmp

Filesize
156KB

Download
memory/616-36-0x000000000EEA0000-0x000000000EEC7000-memory.dmp

Filesize
156KB

Download
memory/616-41-0x000000000EED0000-0x000000000EEF7000-memory.dmp

Filesize
156KB

Download
memory/616-46-0x000000000EF00000-0x000000000EF27000-memory.dmp

Filesize
156KB

Download
memory/616-51-0x000000000EF30000-0x000000000EF57000-memory.dmp

Filesize
156KB

Download
memory/616-56-0x000000000EF60000-0x000000000EF87000-memory.dmp

Filesize
156KB

Download
memory/616-61-0x000000000EF90000-0x000000000EFB7000-memory.dmp

Filesize
156KB

Download
memory/616-66-0x000000000EFC0000-0x000000000EFE7000-memory.dmp

Filesize
156KB

Download
memory/616-71-0x000000000EFF0000-0x000000000F017000-memory.dmp

Filesize
156KB

Download
memory/616-76-0x000000000F020000-0x000000000F047000-memory.dmp

Filesize
156KB

Download
memory/616-81-0x000000000F050000-0x000000000F077000-memory.dmp

Filesize
156KB

Download
memory/616-86-0x000000000F080000-0x000000000F0A7000-memory.dmp

Filesize
156KB

Download
memory/616-96-0x000000000F0E0000-0x000000000F107000-memory.dmp

Filesize
156KB

Download
memory/616-91-0x000000000F0B0000-0x000000000F0D7000-memory.dmp

Filesize
156KB

Download
memory/616-101-0x000000000F110000-0x000000000F137000-memory.dmp

Filesize
156KB

Download
memory/616-106-0x000000000F140000-0x000000000F167000-memory.dmp

Filesize
156KB

Download
memory/616-111-0x000000000F170000-0x000000000F197000-memory.dmp

Filesize
156KB

Download
memory/616-116-0x000000000F1A0000-0x000000000F1C7000-memory.dmp

Filesize
156KB

Download
memory/616-126-0x000000000F200000-0x000000000F227000-memory.dmp

Filesize
156KB

Download
memory/616-131-0x000000000F230000-0x000000000F257000-memory.dmp

Filesize
156KB

Download
memory/616-141-0x000000000F290000-0x000000000F2B7000-memory.dmp

Filesize
156KB

Download
memory/616-136-0x000000000F260000-0x000000000F287000-memory.dmp

Filesize
156KB

Download
memory/616-146-0x000000000F2C0000-0x000000000F2E7000-memory.dmp

Filesize
156KB

Download
memory/616-151-0x000000000F2F0000-0x000000000F317000-memory.dmp

Filesize
156KB

Download
memory/616-156-0x000000000F320000-0x000000000F347000-memory.dmp

Filesize
156KB

Download
memory/616-121-0x000000000F1D0000-0x000000000F1F7000-memory.dmp

Filesize
156KB

Download
memory/616-161-0x000000000F350000-0x000000000F377000-memory.dmp

Filesize
156KB

Download
memory/616-166-0x000000000F380000-0x000000000F3A7000-memory.dmp

Filesize
156KB

Download
memory/616-171-0x000000000F3B0000-0x000000000F3D7000-memory.dmp

Filesize
156KB

Download
memory/616-176-0x000000000F3E0000-0x000000000F407000-memory.dmp

Filesize
156KB

Download
memory/616-181-0x000000000F410000-0x000000000F437000-memory.dmp

Filesize
156KB

Download
memory/616-186-0x000000000F440000-0x000000000F467000-memory.dmp

Filesize
156KB

Download
memory/616-191-0x000000000F470000-0x000000000F497000-memory.dmp

Filesize
156KB

Download
memory/616-201-0x000000000F4D0000-0x000000000F4F7000-memory.dmp

Filesize
156KB

Download
memory/616-206-0x000000000F500000-0x000000000F527000-memory.dmp

Filesize
156KB

Download
memory/616-196-0x000000000F4A0000-0x000000000F4C7000-memory.dmp

Filesize
156KB

Download
memory/616-211-0x000000000F530000-0x000000000F557000-memory.dmp

Filesize
156KB

Download
memory/616-216-0x000000000F560000-0x000000000F587000-memory.dmp

Filesize
156KB

Download
memory/616-226-0x000000000F5C0000-0x000000000F5E7000-memory.dmp

Filesize
156KB

Download
memory/616-231-0x000000000F5F0000-0x000000000F617000-memory.dmp

Filesize
156KB

Download
memory/616-236-0x000000000F620000-0x000000000F647000-memory.dmp

Filesize
156KB

Download
memory/616-241-0x000000000F650000-0x000000000F677000-memory.dmp

Filesize
156KB

Download
memory/616-221-0x000000000F590000-0x000000000F5B7000-memory.dmp

Filesize
156KB

Download
memory/616-246-0x000000000F680000-0x000000000F6A7000-memory.dmp

Filesize
156KB

Download
memory/616-251-0x000000000F6B0000-0x000000000F6D7000-memory.dmp

Filesize
156KB

Download
memory/616-256-0x000000000F6E0000-0x000000000F707000-memory.dmp

Filesize
156KB

Download
memory/616-261-0x000000000F710000-0x000000000F737000-memory.dmp

Filesize
156KB

Download
memory/616-266-0x000000000F740000-0x000000000F767000-memory.dmp

Filesize
156KB

Download
memory/616-271-0x000000000F770000-0x000000000F797000-memory.dmp

Filesize
156KB

Download
memory/616-281-0x000000000F7D0000-0x000000000F7F7000-memory.dmp

Filesize
156KB

Download
memory/616-276-0x000000000F7A0000-0x000000000F7C7000-memory.dmp

Filesize
156KB

Download
memory/616-291-0x000000000F830000-0x000000000F857000-memory.dmp

Filesize
156KB

Download
memory/616-296-0x000000000F860000-0x000000000F887000-memory.dmp

Filesize
156KB

Download
memory/616-301-0x000000000F890000-0x000000000F8B7000-memory.dmp

Filesize
156KB

Download
memory/616-311-0x000000000F8F0000-0x000000000F917000-memory.dmp

Filesize
156KB

Download
memory/616-306-0x000000000F8C0000-0x000000000F8E7000-memory.dmp

Filesize
156KB

Download
memory/616-316-0x000000000F920000-0x000000000F947000-memory.dmp

Filesize
156KB

Download
memory/616-321-0x000000000F950000-0x000000000F977000-memory.dmp

Filesize
156KB

Download
memory/616-286-0x000000000F800000-0x000000000F827000-memory.dmp

Filesize
156KB

Download
memory/4732-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4732-1-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4732-2-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download