4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9

Analysis

max time kernel
185s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 06:49

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General

Target

4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe
Size

625KB
MD5

80cd0b66431784ab47d20c5d3d1754c0
SHA1

0e5265569d743251d2ab5dee61ff77ae2e0a0857
SHA256

4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9
SHA512

612abcbe585f1a6a72747c028b98331a76a90539e455f98e4e1f3704febedd2cb9d714eda3558436b5f00553200ab1bbaeb017f61e0762698c00ccdd5a29c39a
SSDEEP

12288:PjKcN0mZHW0WJK7m/k4fQZ2KHWjCGl9VwLw114ZdP/5AvjWPLm:PjjbZHWNJR/kUVK2jCiUc11mpAbWy

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 10 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	reg.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe:*:Enabled:Windows Messanger"	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	reg.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	reg.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	reg.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\VOCYI7Q9JL.exe = "C:\\Users\\Admin\\AppData\\Roaming\\VOCYI7Q9JL.exe:*:Enabled:Windows Messanger"	reg.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\WDefender = "C:\\Users\\Admin\\AppData\\Roaming\\VOCYI7Q9JL.exe"	vbc.exe

Executes dropped EXE 1 IoCs

pid	Process
3872	vbc.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Active Setup\Installed Components\{CC0C1EEA-EACB-4DB6-EFCE-ECAC0CF82CC7}	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Active Setup\Installed Components\{CC0C1EEA-EACB-4DB6-EFCE-ECAC0CF82CC7}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\VOCYI7Q9JL.exe"	vbc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CC0C1EEA-EACB-4DB6-EFCE-ECAC0CF82CC7}	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CC0C1EEA-EACB-4DB6-EFCE-ECAC0CF82CC7}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\VOCYI7Q9JL.exe"	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WDefender = "C:\\Users\\Admin\\AppData\\Roaming\\VOCYI7Q9JL.exe"	vbc.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WDefender = "C:\\Users\\Admin\\AppData\\Roaming\\VOCYI7Q9JL.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4636 set thread context of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79

Modifies registry key 1 TTPs 4 IoCs

Modify Registry

T1112

pid	Process
2744	reg.exe
1664	reg.exe
1620	reg.exe
4120	reg.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: 1	3872	vbc.exe
Token: SeCreateTokenPrivilege	3872	vbc.exe
Token: SeAssignPrimaryTokenPrivilege	3872	vbc.exe
Token: SeLockMemoryPrivilege	3872	vbc.exe
Token: SeIncreaseQuotaPrivilege	3872	vbc.exe
Token: SeMachineAccountPrivilege	3872	vbc.exe
Token: SeTcbPrivilege	3872	vbc.exe
Token: SeSecurityPrivilege	3872	vbc.exe
Token: SeTakeOwnershipPrivilege	3872	vbc.exe
Token: SeLoadDriverPrivilege	3872	vbc.exe
Token: SeSystemProfilePrivilege	3872	vbc.exe
Token: SeSystemtimePrivilege	3872	vbc.exe
Token: SeProfSingleProcessPrivilege	3872	vbc.exe
Token: SeIncBasePriorityPrivilege	3872	vbc.exe
Token: SeCreatePagefilePrivilege	3872	vbc.exe
Token: SeCreatePermanentPrivilege	3872	vbc.exe
Token: SeBackupPrivilege	3872	vbc.exe
Token: SeRestorePrivilege	3872	vbc.exe
Token: SeShutdownPrivilege	3872	vbc.exe
Token: SeDebugPrivilege	3872	vbc.exe
Token: SeAuditPrivilege	3872	vbc.exe
Token: SeSystemEnvironmentPrivilege	3872	vbc.exe
Token: SeChangeNotifyPrivilege	3872	vbc.exe
Token: SeRemoteShutdownPrivilege	3872	vbc.exe
Token: SeUndockPrivilege	3872	vbc.exe
Token: SeSyncAgentPrivilege	3872	vbc.exe
Token: SeEnableDelegationPrivilege	3872	vbc.exe
Token: SeManageVolumePrivilege	3872	vbc.exe
Token: SeImpersonatePrivilege	3872	vbc.exe
Token: SeCreateGlobalPrivilege	3872	vbc.exe
Token: 31	3872	vbc.exe
Token: 32	3872	vbc.exe
Token: 33	3872	vbc.exe
Token: 34	3872	vbc.exe
Token: 35	3872	vbc.exe
Token: SeDebugPrivilege	3872	vbc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3872	vbc.exe
3872	vbc.exe
3872	vbc.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 4636 wrote to memory of 3872	4636	4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe	79
PID 3872 wrote to memory of 1212	3872	vbc.exe	80
PID 3872 wrote to memory of 1212	3872	vbc.exe	80
PID 3872 wrote to memory of 1212	3872	vbc.exe	80
PID 3872 wrote to memory of 2432	3872	vbc.exe	81
PID 3872 wrote to memory of 2432	3872	vbc.exe	81
PID 3872 wrote to memory of 2432	3872	vbc.exe	81
PID 3872 wrote to memory of 3808	3872	vbc.exe	84
PID 3872 wrote to memory of 3808	3872	vbc.exe	84
PID 3872 wrote to memory of 3808	3872	vbc.exe	84
PID 3872 wrote to memory of 4972	3872	vbc.exe	86
PID 3872 wrote to memory of 4972	3872	vbc.exe	86
PID 3872 wrote to memory of 4972	3872	vbc.exe	86
PID 1212 wrote to memory of 1620	1212	cmd.exe	88
PID 1212 wrote to memory of 1620	1212	cmd.exe	88
PID 1212 wrote to memory of 1620	1212	cmd.exe	88
PID 2432 wrote to memory of 2744	2432	cmd.exe	90
PID 2432 wrote to memory of 2744	2432	cmd.exe	90
PID 2432 wrote to memory of 2744	2432	cmd.exe	90
PID 3808 wrote to memory of 4120	3808	cmd.exe	89
PID 3808 wrote to memory of 4120	3808	cmd.exe	89
PID 3808 wrote to memory of 4120	3808	cmd.exe	89
PID 4972 wrote to memory of 1664	4972	cmd.exe	91
PID 4972 wrote to memory of 1664	4972	cmd.exe	91
PID 4972 wrote to memory of 1664	4972	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe
"C:\Users\Admin\AppData\Local\Temp\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3872
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1212
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
      4⤵
      Modifies firewall policy service
      Modifies registry key
      PID:1620
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe:*:Enabled:Windows Messanger" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2432
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\4bbc5fc033a9878b4467108c6878b1f0e604ce8e78379ed91fa87fd6bbb26ac9.exe:*:Enabled:Windows Messanger" /f
      4⤵
      Modifies firewall policy service
      Modifies registry key
      PID:2744
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3808
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
      4⤵
      Modifies firewall policy service
      Modifies registry key
      PID:4120
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\VOCYI7Q9JL.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\VOCYI7Q9JL.exe:*:Enabled:Windows Messanger" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4972
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\VOCYI7Q9JL.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\VOCYI7Q9JL.exe:*:Enabled:Windows Messanger" /f
      4⤵
      Modifies firewall policy service
      Modifies registry key
      PID:1664

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\vbc.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbc.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/3872-141-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/3872-134-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/3872-151-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/4636-139-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download
memory/4636-132-0x0000000075300000-0x00000000758B1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads