514800ca5b5162ad8aab542f41654a2c7b3790537543691313bb74addd351176

Analysis

max time kernel
41s
max time network
35s
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, 16:09

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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 3340 created 3284	3340	ctmon.exe	33
PID 3340 created 3284	3340	ctmon.exe	33
PID 3340 created 3284	3340	ctmon.exe	33
PID 3340 created 3284	3340	ctmon.exe	33

Executes dropped EXE 1 IoCs

pid	Process
4356	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-1-5-21-1712835645-2080934712-2142796781-1000\Environment\UserInitMprLogonScript = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Internet Explorer\\ctmon.exe"	reg.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3340	ctmon.exe
3340	ctmon.exe
3340	ctmon.exe
3340	ctmon.exe
3340	ctmon.exe
3340	ctmon.exe
3340	ctmon.exe
3340	ctmon.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5028	powercfg.exe
Token: SeCreatePagefilePrivilege	5028	powercfg.exe
Token: SeShutdownPrivilege	4720	powercfg.exe
Token: SeCreatePagefilePrivilege	4720	powercfg.exe
Token: SeShutdownPrivilege	4648	powercfg.exe
Token: SeCreatePagefilePrivilege	4648	powercfg.exe
Token: SeShutdownPrivilege	3144	powercfg.exe
Token: SeCreatePagefilePrivilege	3144	powercfg.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 5028	2356	cmd.exe	95
PID 2356 wrote to memory of 5028	2356	cmd.exe	95
PID 2356 wrote to memory of 4720	2356	cmd.exe	98
PID 2356 wrote to memory of 4720	2356	cmd.exe	98
PID 2356 wrote to memory of 4648	2356	cmd.exe	100
PID 2356 wrote to memory of 4648	2356	cmd.exe	100
PID 2356 wrote to memory of 3144	2356	cmd.exe	101
PID 2356 wrote to memory of 3144	2356	cmd.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3284
- 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:3340
- 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:2356
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:5028
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4720
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4648
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3144
- C:\Windows\System32\reg.exe
  C:\Windows\System32\reg.exe delete "HKCU\Environment" /v "UserInitMprLogonScript" /f
  2⤵
  PID:4452
- 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:32
- 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:4356

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
1.4MB

MD5
5ce9e86a73f660734ca946c233d154dc

SHA1
075539daa4e93163e3076fcedfb3ecef35a9080d

SHA256
c327d34c1ced0690e786461caee5c48da75b7f4fca6c128dded9fbf89adf4eb3

SHA512
d75f8d8199f4e121c41f7d302b402673c7d6842d22aea154a4fd96c682ed84adbb6837d532127a201d09463daa9bf3a0a4fe7b27019835053f0e26292801cf40

Download Submit
memory/3340-0-0x00007FF7F99A0000-0x00007FF7F9EDC000-memory.dmp

Filesize
5.2MB

Download
memory/3340-4-0x00007FF7F99A0000-0x00007FF7F9EDC000-memory.dmp

Filesize
5.2MB

Download
memory/4356-5-0x00007FF674B30000-0x00007FF67506C000-memory.dmp

Filesize
5.2MB

Download