metasploit | 8b55eb2d537ea47cdef207abd75e486aadbe48dbbadfef1597143563b9f8bcd7

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 08:32

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General

Target
8eb107b6ec92448118aba70ab72b87b8.exe
Size 132KB
Sample240204-kfnd7sddd3
SHA256 8b55eb2d537ea47cdef207abd75e486aadbe48dbbadfef1597143563b9f8bcd7
MD5 8eb107b6ec92448118aba70ab72b87b8
SHA1 37bf7703a48aab34575bc1611ec6e5566942850a
SHA512 616921155af3fdedec513f82645aed97926cfee48cfc3a9b7debb6ebc0aa5d5bad569837d542628425a54cac4ede70105e822d949fe19468a724f8b707678872
SSDEEP 3072:rW0DUlKDL2yvB5waMlYkQZfUPrlVlTiIGIkh3rl/:rW0jf0Tv3lT6IkBx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

metasploit backdoor persistence trojan

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	8eb107b6ec92448118aba70ab72b87b8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft Driver Setup = "C:\\Windows\\ctfmon.exe"	8eb107b6ec92448118aba70ab72b87b8.exe

Executes dropped EXE 2 IoCs

pid	Process
3940	ctfmon.exe
2840	ctfmon.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Driver Setup = "C:\\Windows\\ctfmon.exe"	8eb107b6ec92448118aba70ab72b87b8.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3348 set thread context of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3940 set thread context of 2840	3940	ctfmon.exe	85

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\ctfmon.exe	8eb107b6ec92448118aba70ab72b87b8.exe
File opened for modification	C:\Windows\ctfmon.exe	8eb107b6ec92448118aba70ab72b87b8.exe
File created	C:\Windows\logfile32.txt	ctfmon.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4504	8eb107b6ec92448118aba70ab72b87b8.exe
4504	8eb107b6ec92448118aba70ab72b87b8.exe
4504	8eb107b6ec92448118aba70ab72b87b8.exe
4504	8eb107b6ec92448118aba70ab72b87b8.exe
4504	8eb107b6ec92448118aba70ab72b87b8.exe
4504	8eb107b6ec92448118aba70ab72b87b8.exe
2840	ctfmon.exe
2840	ctfmon.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4504	8eb107b6ec92448118aba70ab72b87b8.exe
Token: SeDebugPrivilege	2840	ctfmon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3348	8eb107b6ec92448118aba70ab72b87b8.exe
3940	ctfmon.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 3348 wrote to memory of 4504	3348	8eb107b6ec92448118aba70ab72b87b8.exe	83
PID 4504 wrote to memory of 3940	4504	8eb107b6ec92448118aba70ab72b87b8.exe	84
PID 4504 wrote to memory of 3940	4504	8eb107b6ec92448118aba70ab72b87b8.exe	84
PID 4504 wrote to memory of 3940	4504	8eb107b6ec92448118aba70ab72b87b8.exe	84
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85
PID 3940 wrote to memory of 2840	3940	ctfmon.exe	85

C:\Users\Admin\AppData\Local\Temp\8eb107b6ec92448118aba70ab72b87b8.exe
"C:\Users\Admin\AppData\Local\Temp\8eb107b6ec92448118aba70ab72b87b8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3348
- C:\Users\Admin\AppData\Local\Temp\8eb107b6ec92448118aba70ab72b87b8.exe
  C:\Users\Admin\AppData\Local\Temp\8eb107b6ec92448118aba70ab72b87b8.exe
  2⤵
  - Adds policy Run key to start application
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4504
- - C:\Windows\ctfmon.exe
    "C:\Windows\ctfmon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3940
  - - C:\Windows\ctfmon.exe
      C:\Windows\ctfmon.exe
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

ctfmon.exe

Path C:\Windows\ctfmon.exe
Size 132KB
SHA256 8b55eb2d537ea47cdef207abd75e486aadbe48dbbadfef1597143563b9f8bcd7
MD5 8eb107b6ec92448118aba70ab72b87b8
SHA1 37bf7703a48aab34575bc1611ec6e5566942850a
SHA512 616921155af3fdedec513f82645aed97926cfee48cfc3a9b7debb6ebc0aa5d5bad569837d542628425a54cac4ede70105e822d949fe19468a724f8b707678872
SSDEEP 3072:rW0DUlKDL2yvB5waMlYkQZfUPrlVlTiIGIkh3rl/:rW0jf0Tv3lT6IkBx
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2840-27-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-31-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-37-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-36-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-21-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-22-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-24-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-25-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-35-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-34-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-30-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-29-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-28-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-26-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-32-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/2840-33-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/4504-5-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/4504-2-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/4504-4-0x0000000000400000-0x0000000000455000-memory.dmp

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memory/4504-6-0x0000000000400000-0x0000000000455000-memory.dmp

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