c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 13:36

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General

Target

c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe
Size

410KB
MD5

4e365bc14b31628a111db00fec7ed420
SHA1

76a26ff708be21f1f7a511a1ef3889633d5bf009
SHA256

c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024
SHA512

afd7089b93a5e93a416814f51e5e1f533b03b06f908207b2a57f405ee39c2a13459bed01d583092b5db07e493fc33b5bed8ceabfcf448dc08ad7b12a150f9857
SSDEEP

6144:SnMC4fNJ3mrR2ZW02borC1ym7ieiWZOHuoomHgBnU76Snvmpl5Eh:SZ4f2rR2FrC137ieiWZ0u+gDSnvmBEh

Score

10^/10

evasion persistence upx

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\AuthorizedApplications\List	reg.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\svchost.exe = "C:\\Windows\\SysWOW64\\svchost.exe:*:Enabled:Windows Messanger"	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
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\Roaming\explorer.exe = "C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe:*:Enabled:Windows Messanger"	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	reg.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	reg.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3684-136-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3684-138-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3684-139-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3684-147-0x0000000000400000-0x000000000047C000-memory.dmp	upx
behavioral2/memory/3684-153-0x0000000000400000-0x000000000047C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\sidebar = "C:\\Users\\Admin\\AppData\\Roaming\\Sample.lnk"	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry key 1 TTPs 4 IoCs

Modify Registry

T1112

pid	Process
4596	reg.exe
4304	reg.exe
4516	reg.exe
4024	reg.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe
1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe
1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe
Token: 1	3684	svchost.exe
Token: SeCreateTokenPrivilege	3684	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	3684	svchost.exe
Token: SeLockMemoryPrivilege	3684	svchost.exe
Token: SeIncreaseQuotaPrivilege	3684	svchost.exe
Token: SeMachineAccountPrivilege	3684	svchost.exe
Token: SeTcbPrivilege	3684	svchost.exe
Token: SeSecurityPrivilege	3684	svchost.exe
Token: SeTakeOwnershipPrivilege	3684	svchost.exe
Token: SeLoadDriverPrivilege	3684	svchost.exe
Token: SeSystemProfilePrivilege	3684	svchost.exe
Token: SeSystemtimePrivilege	3684	svchost.exe
Token: SeProfSingleProcessPrivilege	3684	svchost.exe
Token: SeIncBasePriorityPrivilege	3684	svchost.exe
Token: SeCreatePagefilePrivilege	3684	svchost.exe
Token: SeCreatePermanentPrivilege	3684	svchost.exe
Token: SeBackupPrivilege	3684	svchost.exe
Token: SeRestorePrivilege	3684	svchost.exe
Token: SeShutdownPrivilege	3684	svchost.exe
Token: SeDebugPrivilege	3684	svchost.exe
Token: SeAuditPrivilege	3684	svchost.exe
Token: SeSystemEnvironmentPrivilege	3684	svchost.exe
Token: SeChangeNotifyPrivilege	3684	svchost.exe
Token: SeRemoteShutdownPrivilege	3684	svchost.exe
Token: SeUndockPrivilege	3684	svchost.exe
Token: SeSyncAgentPrivilege	3684	svchost.exe
Token: SeEnableDelegationPrivilege	3684	svchost.exe
Token: SeManageVolumePrivilege	3684	svchost.exe
Token: SeImpersonatePrivilege	3684	svchost.exe
Token: SeCreateGlobalPrivilege	3684	svchost.exe
Token: 31	3684	svchost.exe
Token: 32	3684	svchost.exe
Token: 33	3684	svchost.exe
Token: 34	3684	svchost.exe
Token: 35	3684	svchost.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3684	svchost.exe
3684	svchost.exe
3684	svchost.exe
3684	svchost.exe
3684	svchost.exe
3684	svchost.exe
3684	svchost.exe
3684	svchost.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 4084	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	96
PID 1972 wrote to memory of 4084	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	96
PID 1972 wrote to memory of 4084	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	96
PID 1972 wrote to memory of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97
PID 1972 wrote to memory of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97
PID 1972 wrote to memory of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97
PID 1972 wrote to memory of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97
PID 1972 wrote to memory of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97
PID 1972 wrote to memory of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97
PID 1972 wrote to memory of 3684	1972	c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe	97
PID 3684 wrote to memory of 3288	3684	svchost.exe	98
PID 3684 wrote to memory of 3288	3684	svchost.exe	98
PID 3684 wrote to memory of 3288	3684	svchost.exe	98
PID 3684 wrote to memory of 4476	3684	svchost.exe	99
PID 3684 wrote to memory of 4476	3684	svchost.exe	99
PID 3684 wrote to memory of 4476	3684	svchost.exe	99
PID 3684 wrote to memory of 4260	3684	svchost.exe	100
PID 3684 wrote to memory of 4260	3684	svchost.exe	100
PID 3684 wrote to memory of 4260	3684	svchost.exe	100
PID 3684 wrote to memory of 1500	3684	svchost.exe	103
PID 3684 wrote to memory of 1500	3684	svchost.exe	103
PID 3684 wrote to memory of 1500	3684	svchost.exe	103
PID 3288 wrote to memory of 4596	3288	cmd.exe	106
PID 3288 wrote to memory of 4596	3288	cmd.exe	106
PID 3288 wrote to memory of 4596	3288	cmd.exe	106
PID 4260 wrote to memory of 4304	4260	cmd.exe	107
PID 4260 wrote to memory of 4304	4260	cmd.exe	107
PID 4260 wrote to memory of 4304	4260	cmd.exe	107
PID 1500 wrote to memory of 4516	1500	cmd.exe	108
PID 1500 wrote to memory of 4516	1500	cmd.exe	108
PID 1500 wrote to memory of 4516	1500	cmd.exe	108
PID 4476 wrote to memory of 4024	4476	cmd.exe	109
PID 4476 wrote to memory of 4024	4476	cmd.exe	109
PID 4476 wrote to memory of 4024	4476	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe
"C:\Users\Admin\AppData\Local\Temp\c4f84004703ead8f8ebedfe3d5afc8f0e213936582170bf18c46ab78b13fa024.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\system32\svchost.exe"
  2⤵
  PID:4084
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\system32\svchost.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3684
- - 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:3288
  - - 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:4596
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\SysWOW64\svchost.exe" /t REG_SZ /d "C:\Windows\SysWOW64\svchost.exe:*:Enabled:Windows Messanger" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4476
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\SysWOW64\svchost.exe" /t REG_SZ /d "C:\Windows\SysWOW64\svchost.exe:*:Enabled:Windows Messanger" /f
      4⤵
      Modifies firewall policy service
      Modifies registry key
      PID:4024
- - 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:4260
  - - 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:4304
- - 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\explorer.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorer.exe:*:Enabled:Windows Messanger" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1500
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\explorer.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorer.exe:*:Enabled:Windows Messanger" /f
      4⤵
      Modifies firewall policy service
      Modifies registry key
      PID:4516

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1972-133-0x00000000752A0000-0x0000000075851000-memory.dmp

Filesize
5.7MB

Download
memory/1972-152-0x00000000752A0000-0x0000000075851000-memory.dmp

Filesize
5.7MB

Download
memory/1972-132-0x00000000752A0000-0x0000000075851000-memory.dmp

Filesize
5.7MB

Download
memory/3684-139-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3684-138-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3684-136-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3684-147-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/3684-153-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download