8c449334f685abd73281fdeffca0aaf54914b58a8d7edb95ce061305c70fce24

Analysis

max time kernel
157s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
02/11/2023, 21:33

Sharing

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General

Target

NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe
Size

1.3MB
MD5

0259d1ed6d8d24e218b1aac2e777a040
SHA1

3ed1d4e903e50cfbb07a24b6ecf0ceefaf3e92b0
SHA256

8c449334f685abd73281fdeffca0aaf54914b58a8d7edb95ce061305c70fce24
SHA512

9b7146059ccac05b326c579f2efc724ad216e00e3ee67a146bce2342e6e8e69e2b0a9ec07256a58808b82487f4588284ec5deaf1fa021f2df315bd87fc252d14
SSDEEP

24576:5tV+cLO2JcXNylSYMe0w75KcScgvsDumSC3jX6kwiOFNZC3julwF2q:5tV+iP7IcgvOz3jX6kdOFPC3jhFr

Score

10^/10

persistence upx

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\\twext.exe,"	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5004-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5004-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\twext.exe	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe
File opened for modification	C:\Windows\SysWOW64\twext.exe	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5004 set thread context of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe
3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe
3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe
3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 5004 wrote to memory of 3888	5004	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	91
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3
PID 3888 wrote to memory of 624	3888	NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe	3

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:624

C:\Users\Admin\AppData\Local\Temp\NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Users\Admin\AppData\Local\Temp\NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe
  "C:\Users\Admin\AppData\Local\Temp\NEAS.0259d1ed6d8d24e218b1aac2e777a040_JC.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3888

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

Loading Replay Monitor...

Downloads

memory/624-156-0x000000001D580000-0x000000001D5A6000-memory.dmp

Filesize
152KB

Download
memory/624-176-0x000000001D640000-0x000000001D666000-memory.dmp

Filesize
152KB

Download
memory/624-296-0x000000001DAC0000-0x000000001DAE6000-memory.dmp

Filesize
152KB

Download
memory/624-291-0x000000001DA90000-0x000000001DAB6000-memory.dmp

Filesize
152KB

Download
memory/624-286-0x000000001DA60000-0x000000001DA86000-memory.dmp

Filesize
152KB

Download
memory/624-31-0x000000001D0D0000-0x000000001D0F6000-memory.dmp

Filesize
152KB

Download
memory/624-36-0x000000001D100000-0x000000001D126000-memory.dmp

Filesize
152KB

Download
memory/624-41-0x000000001D130000-0x000000001D156000-memory.dmp

Filesize
152KB

Download
memory/624-46-0x000000001D160000-0x000000001D186000-memory.dmp

Filesize
152KB

Download
memory/624-51-0x000000001D190000-0x000000001D1B6000-memory.dmp

Filesize
152KB

Download
memory/624-56-0x000000001D1C0000-0x000000001D1E6000-memory.dmp

Filesize
152KB

Download
memory/624-61-0x000000001D1F0000-0x000000001D216000-memory.dmp

Filesize
152KB

Download
memory/624-66-0x000000001D220000-0x000000001D246000-memory.dmp

Filesize
152KB

Download
memory/624-71-0x000000001D250000-0x000000001D276000-memory.dmp

Filesize
152KB

Download
memory/624-76-0x000000001D280000-0x000000001D2A6000-memory.dmp

Filesize
152KB

Download
memory/624-166-0x000000001D5E0000-0x000000001D606000-memory.dmp

Filesize
152KB

Download
memory/624-86-0x000000001D2E0000-0x000000001D306000-memory.dmp

Filesize
152KB

Download
memory/624-91-0x000000001D310000-0x000000001D336000-memory.dmp

Filesize
152KB

Download
memory/624-96-0x000000001D340000-0x000000001D366000-memory.dmp

Filesize
152KB

Download
memory/624-101-0x000000001D370000-0x000000001D396000-memory.dmp

Filesize
152KB

Download
memory/624-106-0x000000001D3A0000-0x000000001D3C6000-memory.dmp

Filesize
152KB

Download
memory/624-111-0x000000001D3D0000-0x000000001D3F6000-memory.dmp

Filesize
152KB

Download
memory/624-116-0x000000001D400000-0x000000001D426000-memory.dmp

Filesize
152KB

Download
memory/624-126-0x000000001D460000-0x000000001D486000-memory.dmp

Filesize
152KB

Download
memory/624-121-0x000000001D430000-0x000000001D456000-memory.dmp

Filesize
152KB

Download
memory/624-136-0x000000001D4C0000-0x000000001D4E6000-memory.dmp

Filesize
152KB

Download
memory/624-131-0x000000001D490000-0x000000001D4B6000-memory.dmp

Filesize
152KB

Download
memory/624-141-0x000000001D4F0000-0x000000001D516000-memory.dmp

Filesize
152KB

Download
memory/624-146-0x000000001D520000-0x000000001D546000-memory.dmp

Filesize
152KB

Download
memory/624-151-0x000000001D550000-0x000000001D576000-memory.dmp

Filesize
152KB

Download
memory/624-26-0x000000001D0A0000-0x000000001D0C6000-memory.dmp

Filesize
152KB

Download
memory/624-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/624-81-0x000000001D2B0000-0x000000001D2D6000-memory.dmp

Filesize
152KB

Download
memory/624-171-0x000000001D610000-0x000000001D636000-memory.dmp

Filesize
152KB

Download
memory/624-161-0x000000001D5B0000-0x000000001D5D6000-memory.dmp

Filesize
152KB

Download
memory/624-181-0x000000001D670000-0x000000001D696000-memory.dmp

Filesize
152KB

Download
memory/624-191-0x000000001D6D0000-0x000000001D6F6000-memory.dmp

Filesize
152KB

Download
memory/624-186-0x000000001D6A0000-0x000000001D6C6000-memory.dmp

Filesize
152KB

Download
memory/624-196-0x000000001D700000-0x000000001D726000-memory.dmp

Filesize
152KB

Download
memory/624-201-0x000000001D730000-0x000000001D756000-memory.dmp

Filesize
152KB

Download
memory/624-206-0x000000001D760000-0x000000001D786000-memory.dmp

Filesize
152KB

Download
memory/624-211-0x000000001D790000-0x000000001D7B6000-memory.dmp

Filesize
152KB

Download
memory/624-216-0x000000001D7C0000-0x000000001D7E6000-memory.dmp

Filesize
152KB

Download
memory/624-221-0x000000001D7F0000-0x000000001D816000-memory.dmp

Filesize
152KB

Download
memory/624-226-0x000000001D820000-0x000000001D846000-memory.dmp

Filesize
152KB

Download
memory/624-231-0x000000001D850000-0x000000001D876000-memory.dmp

Filesize
152KB

Download
memory/624-236-0x000000001D880000-0x000000001D8A6000-memory.dmp

Filesize
152KB

Download
memory/624-241-0x000000001D8B0000-0x000000001D8D6000-memory.dmp

Filesize
152KB

Download
memory/624-246-0x000000001D8E0000-0x000000001D906000-memory.dmp

Filesize
152KB

Download
memory/624-251-0x000000001D910000-0x000000001D936000-memory.dmp

Filesize
152KB

Download
memory/624-256-0x000000001D940000-0x000000001D966000-memory.dmp

Filesize
152KB

Download
memory/624-261-0x000000001D970000-0x000000001D996000-memory.dmp

Filesize
152KB

Download
memory/624-266-0x000000001D9A0000-0x000000001D9C6000-memory.dmp

Filesize
152KB

Download
memory/624-271-0x000000001D9D0000-0x000000001D9F6000-memory.dmp

Filesize
152KB

Download
memory/624-276-0x000000001DA00000-0x000000001DA26000-memory.dmp

Filesize
152KB

Download
memory/624-281-0x000000001DA30000-0x000000001DA56000-memory.dmp

Filesize
152KB

Download
memory/3888-6-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3888-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3888-3-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3888-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3888-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/5004-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5004-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download