3e24b23721c3655a5148eaf5ff23e398730e9f270307d14d5452f165732a5054

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
19/01/2024, 15:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

6801b835572c1736b2aeb6e55b7c88c6.exe
Size

54KB
MD5

6801b835572c1736b2aeb6e55b7c88c6
SHA1

9ff46580d7d9258f8c10766c288ad355ea4398bc
SHA256

3e24b23721c3655a5148eaf5ff23e398730e9f270307d14d5452f165732a5054
SHA512

152b4bcf5b8f4a72a76dbda2c997e38a58827a8edb9e031e750b8d2d2553a600d3b00091cbf37af1b27b3222fa7a68e971b5d6829c06d5167cc95da1aa47d807
SSDEEP

1536:6vQqZwQUxtwILj8zMs/jtI7iG43yf6KpVi:6xwhxZLwzM1YyfRVi

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\Shell = "Explorer.exe C:\\Windows\\SVCH0ST.exe"	6801b835572c1736b2aeb6e55b7c88c6.exe

Executes dropped EXE 1 IoCs

pid	Process
2992	SVCH0ST.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2992-10-0x00000000001B0000-0x00000000001C7000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SVCH0ST.exe	6801b835572c1736b2aeb6e55b7c88c6.exe
File opened for modification	C:\Windows\SVCH0ST.exe	6801b835572c1736b2aeb6e55b7c88c6.exe
File opened for modification	C:\Windows\lsas.bmp	SVCH0ST.exe
File created	C:\Windows\lsas.bmp	SVCH0ST.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1420	6801b835572c1736b2aeb6e55b7c88c6.exe
1420	6801b835572c1736b2aeb6e55b7c88c6.exe
1420	6801b835572c1736b2aeb6e55b7c88c6.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe
2992	SVCH0ST.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2992	SVCH0ST.exe
2992	SVCH0ST.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 2992	1420	6801b835572c1736b2aeb6e55b7c88c6.exe	28
PID 1420 wrote to memory of 2992	1420	6801b835572c1736b2aeb6e55b7c88c6.exe	28
PID 1420 wrote to memory of 2992	1420	6801b835572c1736b2aeb6e55b7c88c6.exe	28
PID 1420 wrote to memory of 2992	1420	6801b835572c1736b2aeb6e55b7c88c6.exe	28

C:\Users\Admin\AppData\Local\Temp\6801b835572c1736b2aeb6e55b7c88c6.exe
"C:\Users\Admin\AppData\Local\Temp\6801b835572c1736b2aeb6e55b7c88c6.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Windows\SVCH0ST.exe
  C:\Windows\SVCH0ST.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2992

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

C:\Windows\SVCH0ST.exe

Filesize
54KB

MD5
6801b835572c1736b2aeb6e55b7c88c6

SHA1
9ff46580d7d9258f8c10766c288ad355ea4398bc

SHA256
3e24b23721c3655a5148eaf5ff23e398730e9f270307d14d5452f165732a5054

SHA512
152b4bcf5b8f4a72a76dbda2c997e38a58827a8edb9e031e750b8d2d2553a600d3b00091cbf37af1b27b3222fa7a68e971b5d6829c06d5167cc95da1aa47d807

Download Submit
memory/1420-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-12-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-13-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-14-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-10-0x00000000001B0000-0x00000000001C7000-memory.dmp

Filesize
92KB

Download
memory/2992-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-19-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-20-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-21-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-22-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-23-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2992-24-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download