e3bec6ad234b5de48338971056cb689859b5336d05d0278562549c3d350f633a

Analysis

max time kernel
19s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24-12-2023 23:40

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General

Target

1a57bda633f943d2424d156d6349d9b5.exe
Size

256KB
MD5

1a57bda633f943d2424d156d6349d9b5
SHA1

6252d40d17986402270787147dc6c64658db3b87
SHA256

e3bec6ad234b5de48338971056cb689859b5336d05d0278562549c3d350f633a
SHA512

462a254b52d11d7dcdf3b8c0ed4bded5d3f1c396851aa844e6cc0812ea137a16685a5e70823563b7b61900bc9f042b3467801b7fc38b5c1781113898c5bff117
SSDEEP

6144:hHPXsmzaJtHQj7kHAM56DTmGvB5vmGvmdPF1v8Y:hvc0aJtQ/kghfmGv3vAPF1v8Y

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 8 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
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 (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\local.exe = "C:\\Users\\Admin\\AppData\\Roaming\\local.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 (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\iexplore.exe = "C:\\Users\\Admin\\AppData\\Roaming\\iexplore.exe:*:Enabled:Windows Messanger"	reg.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{2DFDBDDF-AF23-C7FA-36D7-EF98DFBBC7EA}	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{2DFDBDDF-AF23-C7FA-36D7-EF98DFBBC7EA}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\local.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\SOFTWARE\Microsoft\Active Setup\Installed Components\{2DFDBDDF-AF23-C7FA-36D7-EF98DFBBC7EA}	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Active Setup\Installed Components\{2DFDBDDF-AF23-C7FA-36D7-EF98DFBBC7EA}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\local.exe"	iexplore.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1a57bda633f943d2424d156d6349d9b5.exe	1a57bda633f943d2424d156d6349d9b5.exe

Executes dropped EXE 1 IoCs

pid	Process
2224	iexplore.exe

Loads dropped DLL 4 IoCs

pid	Process
2932	1a57bda633f943d2424d156d6349d9b5.exe
2932	1a57bda633f943d2424d156d6349d9b5.exe
2932	1a57bda633f943d2424d156d6349d9b5.exe
2932	1a57bda633f943d2424d156d6349d9b5.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2224-35-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-32-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-31-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-30-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-26-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-23-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-20-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-18-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-44-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-47-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-48-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-52-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/2224-53-0x0000000000400000-0x000000000045C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Svchost = "C:\\Users\\Admin\\AppData\\Roaming\\local.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Svchost = "C:\\Users\\Admin\\AppData\\Roaming\\local.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41

Modifies registry key 1 TTPs 4 IoCs

Modify Registry

T1112

pid	Process
2976	reg.exe
2800	reg.exe
2560	reg.exe
2512	reg.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2932	1a57bda633f943d2424d156d6349d9b5.exe
2932	1a57bda633f943d2424d156d6349d9b5.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2932	1a57bda633f943d2424d156d6349d9b5.exe
Token: 1	2224	iexplore.exe
Token: SeCreateTokenPrivilege	2224	iexplore.exe
Token: SeAssignPrimaryTokenPrivilege	2224	iexplore.exe
Token: SeLockMemoryPrivilege	2224	iexplore.exe
Token: SeIncreaseQuotaPrivilege	2224	iexplore.exe
Token: SeMachineAccountPrivilege	2224	iexplore.exe
Token: SeTcbPrivilege	2224	iexplore.exe
Token: SeSecurityPrivilege	2224	iexplore.exe
Token: SeTakeOwnershipPrivilege	2224	iexplore.exe
Token: SeLoadDriverPrivilege	2224	iexplore.exe
Token: SeSystemProfilePrivilege	2224	iexplore.exe
Token: SeSystemtimePrivilege	2224	iexplore.exe
Token: SeProfSingleProcessPrivilege	2224	iexplore.exe
Token: SeIncBasePriorityPrivilege	2224	iexplore.exe
Token: SeCreatePagefilePrivilege	2224	iexplore.exe
Token: SeCreatePermanentPrivilege	2224	iexplore.exe
Token: SeBackupPrivilege	2224	iexplore.exe
Token: SeRestorePrivilege	2224	iexplore.exe
Token: SeShutdownPrivilege	2224	iexplore.exe
Token: SeDebugPrivilege	2224	iexplore.exe
Token: SeAuditPrivilege	2224	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2224	iexplore.exe
Token: SeChangeNotifyPrivilege	2224	iexplore.exe
Token: SeRemoteShutdownPrivilege	2224	iexplore.exe
Token: SeUndockPrivilege	2224	iexplore.exe
Token: SeSyncAgentPrivilege	2224	iexplore.exe
Token: SeEnableDelegationPrivilege	2224	iexplore.exe
Token: SeManageVolumePrivilege	2224	iexplore.exe
Token: SeImpersonatePrivilege	2224	iexplore.exe
Token: SeCreateGlobalPrivilege	2224	iexplore.exe
Token: 31	2224	iexplore.exe
Token: 32	2224	iexplore.exe
Token: 33	2224	iexplore.exe
Token: 34	2224	iexplore.exe
Token: 35	2224	iexplore.exe
Token: SeDebugPrivilege	2224	iexplore.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2224	iexplore.exe
2224	iexplore.exe
2224	iexplore.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2932 wrote to memory of 2224	2932	1a57bda633f943d2424d156d6349d9b5.exe	41
PID 2224 wrote to memory of 2744	2224	iexplore.exe	40
PID 2224 wrote to memory of 2744	2224	iexplore.exe	40
PID 2224 wrote to memory of 2744	2224	iexplore.exe	40
PID 2224 wrote to memory of 2744	2224	iexplore.exe	40
PID 2224 wrote to memory of 2464	2224	iexplore.exe	39
PID 2224 wrote to memory of 2464	2224	iexplore.exe	39
PID 2224 wrote to memory of 2464	2224	iexplore.exe	39
PID 2224 wrote to memory of 2464	2224	iexplore.exe	39
PID 2224 wrote to memory of 2628	2224	iexplore.exe	37
PID 2224 wrote to memory of 2628	2224	iexplore.exe	37
PID 2224 wrote to memory of 2628	2224	iexplore.exe	37
PID 2224 wrote to memory of 2628	2224	iexplore.exe	37
PID 2224 wrote to memory of 2612	2224	iexplore.exe	36
PID 2224 wrote to memory of 2612	2224	iexplore.exe	36
PID 2224 wrote to memory of 2612	2224	iexplore.exe	36
PID 2224 wrote to memory of 2612	2224	iexplore.exe	36
PID 2744 wrote to memory of 2512	2744	cmd.exe	33
PID 2744 wrote to memory of 2512	2744	cmd.exe	33
PID 2744 wrote to memory of 2512	2744	cmd.exe	33
PID 2744 wrote to memory of 2512	2744	cmd.exe	33
PID 2464 wrote to memory of 2560	2464	cmd.exe	32
PID 2464 wrote to memory of 2560	2464	cmd.exe	32
PID 2464 wrote to memory of 2560	2464	cmd.exe	32
PID 2464 wrote to memory of 2560	2464	cmd.exe	32
PID 2628 wrote to memory of 2800	2628	cmd.exe	31
PID 2628 wrote to memory of 2800	2628	cmd.exe	31
PID 2628 wrote to memory of 2800	2628	cmd.exe	31
PID 2628 wrote to memory of 2800	2628	cmd.exe	31
PID 2612 wrote to memory of 2976	2612	cmd.exe	30
PID 2612 wrote to memory of 2976	2612	cmd.exe	30
PID 2612 wrote to memory of 2976	2612	cmd.exe	30
PID 2612 wrote to memory of 2976	2612	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\1a57bda633f943d2424d156d6349d9b5.exe
"C:\Users\Admin\AppData\Local\Temp\1a57bda633f943d2424d156d6349d9b5.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Roaming\iexplore.exe
  C:\Users\Admin\AppData\Roaming\iexplore.exe
  2⤵
  - Adds policy Run key to start application
  - Modifies Installed Components in the registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2224

C:\Windows\SysWOW64\reg.exe
REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\local.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\local.exe:*:Enabled:Windows Messanger" /f
1⤵
- Modifies firewall policy service
- Modifies registry key
PID:2976

C:\Windows\SysWOW64\reg.exe
REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
1⤵
- Modifies firewall policy service
- Modifies registry key
PID:2800

C:\Windows\SysWOW64\reg.exe
REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\iexplore.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\iexplore.exe:*:Enabled:Windows Messanger" /f
1⤵
- Modifies firewall policy service
- Modifies registry key
PID:2560

C:\Windows\SysWOW64\reg.exe
REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
1⤵
- Modifies firewall policy service
- Modifies registry key
PID:2512

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\local.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\local.exe:*:Enabled:Windows Messanger" /f
1⤵
- Suspicious use of WriteProcessMemory
PID:2612

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
1⤵
- Suspicious use of WriteProcessMemory
PID:2628

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\iexplore.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\iexplore.exe:*:Enabled:Windows Messanger" /f
1⤵
- Suspicious use of WriteProcessMemory
PID:2464

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
1⤵
- Suspicious use of WriteProcessMemory
PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2224-20-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-63-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-18-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-27-0x00000000004D0000-0x0000000000623000-memory.dmp

Filesize
1.3MB

Download
memory/2224-35-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-43-0x0000000077B81000-0x0000000077B82000-memory.dmp

Filesize
4KB

Download
memory/2224-42-0x00000000756D0000-0x0000000075770000-memory.dmp

Filesize
640KB

Download
memory/2224-41-0x0000000076860000-0x0000000076970000-memory.dmp

Filesize
1.1MB

Download
memory/2224-32-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-31-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-30-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-26-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-23-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2224-62-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-16-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-60-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-44-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-56-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-55-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-47-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-48-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-50-0x00000000756D0000-0x0000000075770000-memory.dmp

Filesize
640KB

Download
memory/2224-52-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-53-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2224-54-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2932-46-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download
memory/2932-45-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-2-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-0-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-1-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download