c00ba50c2c594099200b3289ce34a91f3ac44e5d43407d0bcbb357bc156826ef

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 04:44

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General

Target

c7b850bb36fa73cd994b9bdba4f633fd.exe
Size

804KB
MD5

c7b850bb36fa73cd994b9bdba4f633fd
SHA1

f842ed75c8b917557efd4fe832de922edb00aebf
SHA256

c00ba50c2c594099200b3289ce34a91f3ac44e5d43407d0bcbb357bc156826ef
SHA512

6c479a2ea6605fe2db34e4e9a956490617fb8fa6e776c7605d76d3fbacb35a486acdcc5d71009872fb546ff0e594bf2f808519f8e96bf358f1b84c8fc4240819
SSDEEP

12288:pr30LtTNdhKUkpQ1amqY84Evl1GSIBeDoafoi1QCQH0GNeIRUr2F+vOdFgqQ:530B5dhKFS1a+eTgO4HNRF7gqQ

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,"	c7b850bb36fa73cd994b9bdba4f633fd.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	c7b850bb36fa73cd994b9bdba4f633fd.exe
File created	C:\Windows\SysWOW64\ntos.exe	c7b850bb36fa73cd994b9bdba4f633fd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2044 set thread context of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2400	c7b850bb36fa73cd994b9bdba4f633fd.exe
2400	c7b850bb36fa73cd994b9bdba4f633fd.exe
2400	c7b850bb36fa73cd994b9bdba4f633fd.exe
2400	c7b850bb36fa73cd994b9bdba4f633fd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2044 wrote to memory of 2400	2044	c7b850bb36fa73cd994b9bdba4f633fd.exe	89
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5
PID 2400 wrote to memory of 612	2400	c7b850bb36fa73cd994b9bdba4f633fd.exe	5

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

C:\Users\Admin\AppData\Local\Temp\c7b850bb36fa73cd994b9bdba4f633fd.exe
"C:\Users\Admin\AppData\Local\Temp\c7b850bb36fa73cd994b9bdba4f633fd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Users\Admin\AppData\Local\Temp\c7b850bb36fa73cd994b9bdba4f633fd.exe
  "C:\Users\Admin\AppData\Local\Temp\c7b850bb36fa73cd994b9bdba4f633fd.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2400

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/612-126-0x000000003C0B0000-0x000000003C0D2000-memory.dmp

Filesize
136KB

Download
memory/612-142-0x000000003C170000-0x000000003C192000-memory.dmp

Filesize
136KB

Download
memory/612-26-0x000000003BC00000-0x000000003BC22000-memory.dmp

Filesize
136KB

Download
memory/612-30-0x000000003BC30000-0x000000003BC52000-memory.dmp

Filesize
136KB

Download
memory/612-34-0x000000003BC60000-0x000000003BC82000-memory.dmp

Filesize
136KB

Download
memory/612-234-0x000000003C5C0000-0x000000003C5E2000-memory.dmp

Filesize
136KB

Download
memory/612-230-0x000000003C590000-0x000000003C5B2000-memory.dmp

Filesize
136KB

Download
memory/612-226-0x000000003C560000-0x000000003C582000-memory.dmp

Filesize
136KB

Download
memory/612-38-0x000000003BC90000-0x000000003BCB2000-memory.dmp

Filesize
136KB

Download
memory/612-42-0x000000003BCC0000-0x000000003BCE2000-memory.dmp

Filesize
136KB

Download
memory/612-46-0x000000003BCF0000-0x000000003BD12000-memory.dmp

Filesize
136KB

Download
memory/612-50-0x000000003BD20000-0x000000003BD42000-memory.dmp

Filesize
136KB

Download
memory/612-54-0x000000003BD50000-0x000000003BD72000-memory.dmp

Filesize
136KB

Download
memory/612-58-0x000000003BD80000-0x000000003BDA2000-memory.dmp

Filesize
136KB

Download
memory/612-62-0x000000003BDB0000-0x000000003BDD2000-memory.dmp

Filesize
136KB

Download
memory/612-134-0x000000003C110000-0x000000003C132000-memory.dmp

Filesize
136KB

Download
memory/612-70-0x000000003BE10000-0x000000003BE32000-memory.dmp

Filesize
136KB

Download
memory/612-74-0x000000003BE40000-0x000000003BE62000-memory.dmp

Filesize
136KB

Download
memory/612-78-0x000000003BE70000-0x000000003BE92000-memory.dmp

Filesize
136KB

Download
memory/612-82-0x000000003BEA0000-0x000000003BEC2000-memory.dmp

Filesize
136KB

Download
memory/612-86-0x000000003BED0000-0x000000003BEF2000-memory.dmp

Filesize
136KB

Download
memory/612-90-0x000000003BF00000-0x000000003BF22000-memory.dmp

Filesize
136KB

Download
memory/612-94-0x000000003BF30000-0x000000003BF52000-memory.dmp

Filesize
136KB

Download
memory/612-98-0x000000003BF60000-0x000000003BF82000-memory.dmp

Filesize
136KB

Download
memory/612-102-0x000000003BF90000-0x000000003BFB2000-memory.dmp

Filesize
136KB

Download
memory/612-106-0x000000003BFC0000-0x000000003BFE2000-memory.dmp

Filesize
136KB

Download
memory/612-110-0x000000003BFF0000-0x000000003C012000-memory.dmp

Filesize
136KB

Download
memory/612-114-0x000000003C020000-0x000000003C042000-memory.dmp

Filesize
136KB

Download
memory/612-118-0x000000003C050000-0x000000003C072000-memory.dmp

Filesize
136KB

Download
memory/612-122-0x000000003C080000-0x000000003C0A2000-memory.dmp

Filesize
136KB

Download
memory/612-22-0x000000003BBD0000-0x000000003BBF2000-memory.dmp

Filesize
136KB

Download
memory/612-18-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/612-66-0x000000003BDE0000-0x000000003BE02000-memory.dmp

Filesize
136KB

Download
memory/612-138-0x000000003C140000-0x000000003C162000-memory.dmp

Filesize
136KB

Download
memory/612-130-0x000000003C0E0000-0x000000003C102000-memory.dmp

Filesize
136KB

Download
memory/612-146-0x000000003C1A0000-0x000000003C1C2000-memory.dmp

Filesize
136KB

Download
memory/612-150-0x000000003C1D0000-0x000000003C1F2000-memory.dmp

Filesize
136KB

Download
memory/612-154-0x000000003C200000-0x000000003C222000-memory.dmp

Filesize
136KB

Download
memory/612-158-0x000000003C230000-0x000000003C252000-memory.dmp

Filesize
136KB

Download
memory/612-162-0x000000003C260000-0x000000003C282000-memory.dmp

Filesize
136KB

Download
memory/612-166-0x000000003C290000-0x000000003C2B2000-memory.dmp

Filesize
136KB

Download
memory/612-170-0x000000003C2C0000-0x000000003C2E2000-memory.dmp

Filesize
136KB

Download
memory/612-174-0x000000003C2F0000-0x000000003C312000-memory.dmp

Filesize
136KB

Download
memory/612-178-0x000000003C320000-0x000000003C342000-memory.dmp

Filesize
136KB

Download
memory/612-182-0x000000003C350000-0x000000003C372000-memory.dmp

Filesize
136KB

Download
memory/612-186-0x000000003C380000-0x000000003C3A2000-memory.dmp

Filesize
136KB

Download
memory/612-190-0x000000003C3B0000-0x000000003C3D2000-memory.dmp

Filesize
136KB

Download
memory/612-194-0x000000003C3E0000-0x000000003C402000-memory.dmp

Filesize
136KB

Download
memory/612-198-0x000000003C410000-0x000000003C432000-memory.dmp

Filesize
136KB

Download
memory/612-202-0x000000003C440000-0x000000003C462000-memory.dmp

Filesize
136KB

Download
memory/612-206-0x000000003C470000-0x000000003C492000-memory.dmp

Filesize
136KB

Download
memory/612-210-0x000000003C4A0000-0x000000003C4C2000-memory.dmp

Filesize
136KB

Download
memory/612-214-0x000000003C4D0000-0x000000003C4F2000-memory.dmp

Filesize
136KB

Download
memory/612-218-0x000000003C500000-0x000000003C522000-memory.dmp

Filesize
136KB

Download
memory/612-222-0x000000003C530000-0x000000003C552000-memory.dmp

Filesize
136KB

Download
memory/2400-2-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2400-1-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2400-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2400-5-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2400-6-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2400-9-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2400-8-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2400-10-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download