ec771427b49936dedbd2f9537d674403b1dc1f412a975aa28a7a7ca2c58bf60a

Analysis

max time kernel
170s
max time network
179s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2024, 00:21

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General

Target

4789fbb1fed43018a41ec55db5eb570c.exe
Size

55KB
MD5

4789fbb1fed43018a41ec55db5eb570c
SHA1

0b652bca4f3f054ead04b56609df897c0137fb03
SHA256

ec771427b49936dedbd2f9537d674403b1dc1f412a975aa28a7a7ca2c58bf60a
SHA512

876a52b1981262481fe4704be8e8b17d610d8d88b14adc1be330d5b10eb76d91b07109575b2750c0f620f95d608fe628b6ab1c3e0a49cb23ff2f2869b3e2a2f0
SSDEEP

1536:tYZANK7y1nMmvgPNB+MeLhJlk+fVWGkzVUYE:qwKmVxoPNB+3LXq+fVWGkLE

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,"	4789fbb1fed43018a41ec55db5eb570c.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ntos.exe	4789fbb1fed43018a41ec55db5eb570c.exe
File opened for modification	C:\Windows\SysWOW64\ntos.exe	4789fbb1fed43018a41ec55db5eb570c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3128	4789fbb1fed43018a41ec55db5eb570c.exe
3128	4789fbb1fed43018a41ec55db5eb570c.exe
3128	4789fbb1fed43018a41ec55db5eb570c.exe
3128	4789fbb1fed43018a41ec55db5eb570c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3128	4789fbb1fed43018a41ec55db5eb570c.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 1608 wrote to memory of 3128	1608	4789fbb1fed43018a41ec55db5eb570c.exe	90
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3
PID 3128 wrote to memory of 612	3128	4789fbb1fed43018a41ec55db5eb570c.exe	3

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Users\Admin\AppData\Local\Temp\4789fbb1fed43018a41ec55db5eb570c.exe
"C:\Users\Admin\AppData\Local\Temp\4789fbb1fed43018a41ec55db5eb570c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\4789fbb1fed43018a41ec55db5eb570c.exe
  "C:\Users\Admin\AppData\Local\Temp\4789fbb1fed43018a41ec55db5eb570c.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3128

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/612-140-0x000000000AE30000-0x000000000AE55000-memory.dmp

Filesize
148KB

Download
memory/612-160-0x000000000AEF0000-0x000000000AF15000-memory.dmp

Filesize
148KB

Download
memory/612-30-0x000000000AA10000-0x000000000AA35000-memory.dmp

Filesize
148KB

Download
memory/612-35-0x000000000AA40000-0x000000000AA65000-memory.dmp

Filesize
148KB

Download
memory/612-281-0x000000000B370000-0x000000000B395000-memory.dmp

Filesize
148KB

Download
memory/612-276-0x000000000B340000-0x000000000B365000-memory.dmp

Filesize
148KB

Download
memory/612-271-0x000000000B310000-0x000000000B335000-memory.dmp

Filesize
148KB

Download
memory/612-266-0x000000000B2E0000-0x000000000B305000-memory.dmp

Filesize
148KB

Download
memory/612-261-0x000000000B2B0000-0x000000000B2D5000-memory.dmp

Filesize
148KB

Download
memory/612-256-0x000000000B280000-0x000000000B2A5000-memory.dmp

Filesize
148KB

Download
memory/612-40-0x000000000AA70000-0x000000000AA95000-memory.dmp

Filesize
148KB

Download
memory/612-45-0x000000000AAA0000-0x000000000AAC5000-memory.dmp

Filesize
148KB

Download
memory/612-50-0x000000000AAD0000-0x000000000AAF5000-memory.dmp

Filesize
148KB

Download
memory/612-55-0x000000000AB00000-0x000000000AB25000-memory.dmp

Filesize
148KB

Download
memory/612-60-0x000000000AB30000-0x000000000AB55000-memory.dmp

Filesize
148KB

Download
memory/612-150-0x000000000AE90000-0x000000000AEB5000-memory.dmp

Filesize
148KB

Download
memory/612-70-0x000000000AB90000-0x000000000ABB5000-memory.dmp

Filesize
148KB

Download
memory/612-75-0x000000000ABC0000-0x000000000ABE5000-memory.dmp

Filesize
148KB

Download
memory/612-80-0x000000000ABF0000-0x000000000AC15000-memory.dmp

Filesize
148KB

Download
memory/612-85-0x000000000AC20000-0x000000000AC45000-memory.dmp

Filesize
148KB

Download
memory/612-90-0x000000000AC50000-0x000000000AC75000-memory.dmp

Filesize
148KB

Download
memory/612-95-0x000000000AC80000-0x000000000ACA5000-memory.dmp

Filesize
148KB

Download
memory/612-100-0x000000000ACB0000-0x000000000ACD5000-memory.dmp

Filesize
148KB

Download
memory/612-105-0x000000000ACE0000-0x000000000AD05000-memory.dmp

Filesize
148KB

Download
memory/612-110-0x000000000AD10000-0x000000000AD35000-memory.dmp

Filesize
148KB

Download
memory/612-115-0x000000000AD40000-0x000000000AD65000-memory.dmp

Filesize
148KB

Download
memory/612-120-0x000000000AD70000-0x000000000AD95000-memory.dmp

Filesize
148KB

Download
memory/612-125-0x000000000ADA0000-0x000000000ADC5000-memory.dmp

Filesize
148KB

Download
memory/612-130-0x000000000ADD0000-0x000000000ADF5000-memory.dmp

Filesize
148KB

Download
memory/612-135-0x000000000AE00000-0x000000000AE25000-memory.dmp

Filesize
148KB

Download
memory/612-25-0x000000000A9E0000-0x000000000AA05000-memory.dmp

Filesize
148KB

Download
memory/612-20-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/612-65-0x000000000AB60000-0x000000000AB85000-memory.dmp

Filesize
148KB

Download
memory/612-155-0x000000000AEC0000-0x000000000AEE5000-memory.dmp

Filesize
148KB

Download
memory/612-145-0x000000000AE60000-0x000000000AE85000-memory.dmp

Filesize
148KB

Download
memory/612-165-0x000000000AF20000-0x000000000AF45000-memory.dmp

Filesize
148KB

Download
memory/612-170-0x000000000AF50000-0x000000000AF75000-memory.dmp

Filesize
148KB

Download
memory/612-175-0x000000000AF80000-0x000000000AFA5000-memory.dmp

Filesize
148KB

Download
memory/612-180-0x000000000AFB0000-0x000000000AFD5000-memory.dmp

Filesize
148KB

Download
memory/612-185-0x000000000AFE0000-0x000000000B005000-memory.dmp

Filesize
148KB

Download
memory/612-190-0x000000000B010000-0x000000000B035000-memory.dmp

Filesize
148KB

Download
memory/612-196-0x000000000B040000-0x000000000B065000-memory.dmp

Filesize
148KB

Download
memory/612-201-0x000000000B070000-0x000000000B095000-memory.dmp

Filesize
148KB

Download
memory/612-206-0x000000000B0A0000-0x000000000B0C5000-memory.dmp

Filesize
148KB

Download
memory/612-211-0x000000000B0D0000-0x000000000B0F5000-memory.dmp

Filesize
148KB

Download
memory/612-216-0x000000000B100000-0x000000000B125000-memory.dmp

Filesize
148KB

Download
memory/612-221-0x000000000B130000-0x000000000B155000-memory.dmp

Filesize
148KB

Download
memory/612-226-0x000000000B160000-0x000000000B185000-memory.dmp

Filesize
148KB

Download
memory/612-231-0x000000000B190000-0x000000000B1B5000-memory.dmp

Filesize
148KB

Download
memory/612-236-0x000000000B1C0000-0x000000000B1E5000-memory.dmp

Filesize
148KB

Download
memory/612-241-0x000000000B1F0000-0x000000000B215000-memory.dmp

Filesize
148KB

Download
memory/612-246-0x000000000B220000-0x000000000B245000-memory.dmp

Filesize
148KB

Download
memory/612-251-0x000000000B250000-0x000000000B275000-memory.dmp

Filesize
148KB

Download
memory/1608-5-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3128-6-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-2-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-3-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-1-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-0-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-7-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-9-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-10-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3128-11-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download