514800ca5b5162ad8aab542f41654a2c7b3790537543691313bb74addd351176

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 16:02

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General

Target

ctmon.exe
Size

5.2MB
MD5

d7ca45659894912607bfb4e3c969379a
SHA1

c930fe71cee79cadddb5330ab15e107f5551643c
SHA256

514800ca5b5162ad8aab542f41654a2c7b3790537543691313bb74addd351176
SHA512

eb2ccbbb7b2dec1bdf1fe3d9826f9a67d6b024e48acfd8f451269c837b08d51f7450aa5e440c0c5bda7e1a371a2a279403c34a5179c13bac5924d6c4906188f1
SSDEEP

98304:nrAdIvTJvpwfDtnPfTkiHEixVHShWQq7Sx+wl5lHbTisC7oish2Z:rdTM7tnPfTyiGq7lmHrqsh2Z

Score

10^/10

persistence

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs

description	pid	Process	procid_target
PID 3528 created 3244	3528	ctmon.exe	50
PID 3528 created 3244	3528	ctmon.exe	50
PID 3528 created 3244	3528	ctmon.exe	50
PID 3528 created 3244	3528	ctmon.exe	50

Executes dropped EXE 1 IoCs

pid	Process
3312	ctmon.exe

Registers new Windows logon scripts automatically executed at logon. 1 TTPs 1 IoCs

persistence

Logon Script (Windows)

T1037.001

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3054445511-921769590-4013668107-1000\Environment\UserInitMprLogonScript = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Internet Explorer\\ctmon.exe"	reg.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3528	ctmon.exe
3528	ctmon.exe
3528	ctmon.exe
3528	ctmon.exe
3528	ctmon.exe
3528	ctmon.exe
3528	ctmon.exe
3528	ctmon.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2660	powercfg.exe
Token: SeCreatePagefilePrivilege	2660	powercfg.exe
Token: SeShutdownPrivilege	3564	powercfg.exe
Token: SeCreatePagefilePrivilege	3564	powercfg.exe
Token: SeShutdownPrivilege	1240	powercfg.exe
Token: SeCreatePagefilePrivilege	1240	powercfg.exe
Token: SeShutdownPrivilege	4892	powercfg.exe
Token: SeCreatePagefilePrivilege	4892	powercfg.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 2660	3740	cmd.exe	94
PID 3740 wrote to memory of 2660	3740	cmd.exe	94
PID 3740 wrote to memory of 3564	3740	cmd.exe	97
PID 3740 wrote to memory of 3564	3740	cmd.exe	97
PID 3740 wrote to memory of 1240	3740	cmd.exe	99
PID 3740 wrote to memory of 1240	3740	cmd.exe	99
PID 3740 wrote to memory of 4892	3740	cmd.exe	100
PID 3740 wrote to memory of 4892	3740	cmd.exe	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3244
- C:\Users\Admin\AppData\Local\Temp\ctmon.exe
  "C:\Users\Admin\AppData\Local\Temp\ctmon.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  PID:3528
- C:\Windows\System32\cmd.exe
  C:\Windows\System32\cmd.exe /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3740
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2660
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3564
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1240
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4892
- C:\Windows\System32\reg.exe
  C:\Windows\System32\reg.exe delete "HKCU\Environment" /v "UserInitMprLogonScript" /f
  2⤵
  PID:2784
- C:\Windows\System32\reg.exe
  C:\Windows\System32\reg.exe add "HKCU\Environment" /v "UserInitMprLogonScript" /t REG_SZ /f /d "C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\ctmon.exe"
  2⤵
  - Registers new Windows logon scripts automatically executed at logon.
  PID:484
- C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\ctmon.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\ctmon.exe
  2⤵
  - Executes dropped EXE
  PID:3312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Initialization Scripts

T1037

Logon Script (Windows)

T1037.001

Privilege Escalation

Boot or Logon Initialization Scripts

T1037

Logon Script (Windows)

T1037.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\ctmon.exe

Filesize
5.2MB

MD5
d7ca45659894912607bfb4e3c969379a

SHA1
c930fe71cee79cadddb5330ab15e107f5551643c

SHA256
514800ca5b5162ad8aab542f41654a2c7b3790537543691313bb74addd351176

SHA512
eb2ccbbb7b2dec1bdf1fe3d9826f9a67d6b024e48acfd8f451269c837b08d51f7450aa5e440c0c5bda7e1a371a2a279403c34a5179c13bac5924d6c4906188f1

Download Submit
memory/3312-5-0x00007FF799A50000-0x00007FF799F8C000-memory.dmp

Filesize
5.2MB

Download
memory/3528-0-0x00007FF67C050000-0x00007FF67C58C000-memory.dmp

Filesize
5.2MB

Download
memory/3528-4-0x00007FF67C050000-0x00007FF67C58C000-memory.dmp

Filesize
5.2MB

Download