434f8893b1e74a6cfe1d3f77210e6755cfa9095a29220495785b6607de2a99f3

Analysis

max time kernel
50s
max time network
90s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 20:25

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General

Target

bcb9684be8eaf709d6c1797a16def3fd.exe
Size

43KB
MD5

bcb9684be8eaf709d6c1797a16def3fd
SHA1

572971c690de3b80602eca4435cec2655a4ac5f1
SHA256

434f8893b1e74a6cfe1d3f77210e6755cfa9095a29220495785b6607de2a99f3
SHA512

0175fec7e78207a05f120df8b8bcac5c180a5c2c691c9cb5c1566698ca8c62336584ebc14d280c1dcfd9858047e778504b648c88611588e78c0bc5bb21a7aed2
SSDEEP

768:jnb8yg13apew0Gy05nMzDf98ZO0WmFZZ9f453rk4hP6vd7Z7ElnEEEEEEEEEEEEb:rIapL3nMzDV8bWcZZ9f453rxhcd7yXq

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,"	bcb9684be8eaf709d6c1797a16def3fd.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	bcb9684be8eaf709d6c1797a16def3fd.exe
File created	C:\Windows\SysWOW64\ntos.exe	bcb9684be8eaf709d6c1797a16def3fd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3088	bcb9684be8eaf709d6c1797a16def3fd.exe
3088	bcb9684be8eaf709d6c1797a16def3fd.exe
3088	bcb9684be8eaf709d6c1797a16def3fd.exe
3088	bcb9684be8eaf709d6c1797a16def3fd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	bcb9684be8eaf709d6c1797a16def3fd.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5
PID 3088 wrote to memory of 608	3088	bcb9684be8eaf709d6c1797a16def3fd.exe	5

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Users\Admin\AppData\Local\Temp\bcb9684be8eaf709d6c1797a16def3fd.exe
"C:\Users\Admin\AppData\Local\Temp\bcb9684be8eaf709d6c1797a16def3fd.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/608-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/608-14-0x000000001D7F0000-0x000000001D814000-memory.dmp

Filesize
144KB

Download
memory/608-18-0x000000001D820000-0x000000001D844000-memory.dmp

Filesize
144KB

Download
memory/608-22-0x000000001D850000-0x000000001D874000-memory.dmp

Filesize
144KB

Download
memory/608-26-0x000000001D880000-0x000000001D8A4000-memory.dmp

Filesize
144KB

Download
memory/608-30-0x000000001D8B0000-0x000000001D8D4000-memory.dmp

Filesize
144KB

Download
memory/608-34-0x000000001D8E0000-0x000000001D904000-memory.dmp

Filesize
144KB

Download
memory/608-38-0x000000001D910000-0x000000001D934000-memory.dmp

Filesize
144KB

Download
memory/608-42-0x000000001D940000-0x000000001D964000-memory.dmp

Filesize
144KB

Download
memory/608-46-0x000000001D970000-0x000000001D994000-memory.dmp

Filesize
144KB

Download
memory/608-50-0x000000001D9A0000-0x000000001D9C4000-memory.dmp

Filesize
144KB

Download
memory/608-54-0x000000001D9D0000-0x000000001D9F4000-memory.dmp

Filesize
144KB

Download
memory/608-58-0x000000001DA00000-0x000000001DA24000-memory.dmp

Filesize
144KB

Download
memory/608-62-0x000000001DA30000-0x000000001DA54000-memory.dmp

Filesize
144KB

Download
memory/608-66-0x000000001DA60000-0x000000001DA84000-memory.dmp

Filesize
144KB

Download
memory/608-70-0x000000001DA90000-0x000000001DAB4000-memory.dmp

Filesize
144KB

Download
memory/608-74-0x000000001DAC0000-0x000000001DAE4000-memory.dmp

Filesize
144KB

Download
memory/608-78-0x000000001DAF0000-0x000000001DB14000-memory.dmp

Filesize
144KB

Download
memory/608-82-0x000000001DB20000-0x000000001DB44000-memory.dmp

Filesize
144KB

Download
memory/608-86-0x000000001DB50000-0x000000001DB74000-memory.dmp

Filesize
144KB

Download
memory/608-90-0x000000001DB80000-0x000000001DBA4000-memory.dmp

Filesize
144KB

Download
memory/608-94-0x000000001DBB0000-0x000000001DBD4000-memory.dmp

Filesize
144KB

Download
memory/608-98-0x000000001DBE0000-0x000000001DC04000-memory.dmp

Filesize
144KB

Download
memory/608-102-0x000000001DC10000-0x000000001DC34000-memory.dmp

Filesize
144KB

Download
memory/608-106-0x000000001DC40000-0x000000001DC64000-memory.dmp

Filesize
144KB

Download
memory/608-110-0x000000001DC70000-0x000000001DC94000-memory.dmp

Filesize
144KB

Download
memory/608-114-0x000000001DCA0000-0x000000001DCC4000-memory.dmp

Filesize
144KB

Download
memory/608-118-0x000000001DCD0000-0x000000001DCF4000-memory.dmp

Filesize
144KB

Download
memory/608-122-0x000000001DD00000-0x000000001DD24000-memory.dmp

Filesize
144KB

Download
memory/608-126-0x000000001DD30000-0x000000001DD54000-memory.dmp

Filesize
144KB

Download
memory/608-130-0x000000001DD60000-0x000000001DD84000-memory.dmp

Filesize
144KB

Download
memory/608-134-0x000000001DD90000-0x000000001DDB4000-memory.dmp

Filesize
144KB

Download
memory/608-138-0x000000001DDC0000-0x000000001DDE4000-memory.dmp

Filesize
144KB

Download
memory/608-142-0x000000001DDF0000-0x000000001DE14000-memory.dmp

Filesize
144KB

Download
memory/608-146-0x000000001DE20000-0x000000001DE44000-memory.dmp

Filesize
144KB

Download
memory/608-150-0x000000001DE50000-0x000000001DE74000-memory.dmp

Filesize
144KB

Download
memory/608-154-0x000000001DE80000-0x000000001DEA4000-memory.dmp

Filesize
144KB

Download
memory/608-158-0x000000001DEB0000-0x000000001DED4000-memory.dmp

Filesize
144KB

Download
memory/608-162-0x000000001DEE0000-0x000000001DF04000-memory.dmp

Filesize
144KB

Download
memory/608-166-0x000000001DF10000-0x000000001DF34000-memory.dmp

Filesize
144KB

Download
memory/608-170-0x000000001DF40000-0x000000001DF64000-memory.dmp

Filesize
144KB

Download
memory/608-174-0x000000001DF70000-0x000000001DF94000-memory.dmp

Filesize
144KB

Download
memory/608-178-0x000000001DFA0000-0x000000001DFC4000-memory.dmp

Filesize
144KB

Download
memory/608-182-0x000000001DFD0000-0x000000001DFF4000-memory.dmp

Filesize
144KB

Download
memory/608-186-0x000000001E000000-0x000000001E024000-memory.dmp

Filesize
144KB

Download
memory/608-190-0x000000001E030000-0x000000001E054000-memory.dmp

Filesize
144KB

Download
memory/608-194-0x000000001E060000-0x000000001E084000-memory.dmp

Filesize
144KB

Download
memory/608-198-0x000000001E090000-0x000000001E0B4000-memory.dmp

Filesize
144KB

Download
memory/608-202-0x000000001E0C0000-0x000000001E0E4000-memory.dmp

Filesize
144KB

Download
memory/608-206-0x000000001E0F0000-0x000000001E114000-memory.dmp

Filesize
144KB

Download
memory/608-210-0x000000001E120000-0x000000001E144000-memory.dmp

Filesize
144KB

Download
memory/608-214-0x000000001E150000-0x000000001E174000-memory.dmp

Filesize
144KB

Download
memory/608-218-0x000000001E180000-0x000000001E1A4000-memory.dmp

Filesize
144KB

Download
memory/608-222-0x000000001E1B0000-0x000000001E1D4000-memory.dmp

Filesize
144KB

Download
memory/608-226-0x000000001E1E0000-0x000000001E204000-memory.dmp

Filesize
144KB

Download
memory/608-230-0x000000001E210000-0x000000001E234000-memory.dmp

Filesize
144KB

Download
memory/608-234-0x000000001E240000-0x000000001E264000-memory.dmp

Filesize
144KB

Download
memory/608-238-0x000000001E270000-0x000000001E294000-memory.dmp

Filesize
144KB

Download
memory/608-242-0x000000001E2A0000-0x000000001E2C4000-memory.dmp

Filesize
144KB

Download
memory/608-246-0x000000001E2D0000-0x000000001E2F4000-memory.dmp

Filesize
144KB

Download
memory/608-250-0x000000001E300000-0x000000001E324000-memory.dmp

Filesize
144KB

Download
memory/608-254-0x000000001E330000-0x000000001E354000-memory.dmp

Filesize
144KB

Download
memory/608-258-0x000000001E360000-0x000000001E384000-memory.dmp

Filesize
144KB

Download
memory/3088-0-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3088-1-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3088-2-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download