cybergate | dd659658316502fac8b34df964117d175bf277b2dc92e93cc7b9b09d9c512453

Modify Registry

Processes:

vbc.exe

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\Policies = "C:\\Windows\\system32\\System23\\Microsoft.exe"	vbc.exe
Key created	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\system32\\System23\\Microsoft.exe"	vbc.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

vbc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{2UT2YGY6-507U-JQJ5-42BM-C8DIJK6L870S}	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2UT2YGY6-507U-JQJ5-42BM-C8DIJK6L870S}\StubPath = "C:\\Windows\\system32\\System23\\Microsoft.exe Restart"	vbc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe

pid process

3016 f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe

Loads dropped DLL 4 IoCs

Processes:

f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe

pid	process
3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4408-39-0x0000000000400000-0x0000000000459000-memory.dmp	upx
behavioral2/memory/4408-43-0x0000000000400000-0x0000000000459000-memory.dmp	upx
behavioral2/memory/4408-44-0x0000000000400000-0x0000000000459000-memory.dmp	upx
behavioral2/memory/4408-45-0x0000000000400000-0x0000000000459000-memory.dmp	upx
behavioral2/memory/4408-49-0x0000000024010000-0x0000000024072000-memory.dmp	upx
behavioral2/memory/4408-109-0x0000000024080000-0x00000000240E2000-memory.dmp	upx
behavioral2/memory/3464-114-0x0000000024080000-0x00000000240E2000-memory.dmp	upx

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exevbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JPLXaoKMVfaDTlGZTJoxxwCmfmRedtwzrQfYIqsNptISnBnaCY = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe"	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\System23\\Microsoft.exe"	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\System23\\Microsoft.exe"	vbc.exe

Drops file in System32 directory 2 IoCs

Processes:

vbc.exe

description	ioc	process
File created	C:\Windows\SysWOW64\System23\Microsoft.exe	vbc.exe
File opened for modification	C:\Windows\SysWOW64\System23\Microsoft.exe	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe

description pid process target process

PID 3016 set thread context of 4408 3016 f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe vbc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

vbc.exe

pid process

4408 vbc.exe
4408 vbc.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

vbc.exe

pid process

4408 vbc.exe

description	pid	process	target process
PID 3016 set thread context of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe

pid	process
4408	vbc.exe
4408	vbc.exe

pid	process
4408	vbc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exef54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exevbc.exe

description	pid	process	target process
PID 1192 wrote to memory of 3016	1192	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
PID 1192 wrote to memory of 3016	1192	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
PID 1192 wrote to memory of 3016	1192	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 3016 wrote to memory of 4408	3016	f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe	vbc.exe
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE
PID 4408 wrote to memory of 3416	4408	vbc.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3416

C:\Users\Admin\AppData\Local\Temp\f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1192

C:\Users\Admin\Documents\f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe
"C:\Users\Admin\Documents\f54df120c83f5fa1a01919b5b77d04ab_JaffaCakes118.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3016

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
4⤵
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4408

C:\Windows\SysWOW64\explorer.exe
explorer.exe
5⤵
PID:3464

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
5⤵
PID:4996

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
5⤵
PID:536

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scripting

1

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry