metasploit | 57a50dd84101f43cae0aee1022dc2a6fe1198477a8c4ac97d4ce0b283d433bf2

General

Target

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
Size

157KB
MD5

f5d35f9024fd14fa1cb3f3df4a0ca46c
SHA1

ef737adeee6a16e8cb067b669a860026b40eba8b
SHA256

57a50dd84101f43cae0aee1022dc2a6fe1198477a8c4ac97d4ce0b283d433bf2
SHA512

f6c87175dae336a80f7d46a7e7bf47195ace6393e6e31e8893f3e550ccc6c57f69ddfd9bba65b427c9d65c5a17b9f550249c96ba10de004173a6596ddd384171
SSDEEP

3072:Hvz63FlUMo5NejkQH/RA9xXUIPvEAHz8spvvKbOlc6X1YrHsp5V:HvGVZjDHI9RzHospvvKCif7q5V

Score

10^/10

metasploit backdoor evasion persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Modifies firewall policy service 2 TTPs 8 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

igfxnk32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxnk32.exe = "C:\\Windows\\SysWOW64\\igfxnk32.exe:*:Enabled:Intel iDisplay Driver"	igfxnk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxnk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxnk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxnk32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxnk32.exe = "C:\\Windows\\SysWOW64\\igfxnk32.exe:*:Enabled:Intel iDisplay Driver"	igfxnk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxnk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxnk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxnk32.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:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

igfxnk32.exe

pid process

3564 igfxnk32.exe
Executes dropped EXE 2 IoCs

Processes:

igfxnk32.exeigfxnk32.exe

pid process

2548 igfxnk32.exe
3564 igfxnk32.exe

pid	process
3564	igfxnk32.exe

pid	process
2548	igfxnk32.exe
3564	igfxnk32.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2504-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2504-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2504-3-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2504-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3564-43-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2504-44-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2504-45-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3564-46-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3564-47-0x0000000000400000-0x000000000044C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

igfxnk32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Intel iDisplay Driver = "C:\\Windows\\SysWOW64\\igfxnk32.exe"	igfxnk32.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exeigfxnk32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxnk32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxnk32.exe

Drops file in System32 directory 4 IoCs

Processes:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exeigfxnk32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxnk32.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\igfxnk32.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxnk32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exeigfxnk32.exe

description	pid	process	target process
PID 4884 set thread context of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 2548 set thread context of 3564	2548	igfxnk32.exe	igfxnk32.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exeigfxnk32.exe

pid	process
2504	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
2504	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
2504	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
2504	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
3564	igfxnk32.exe
3564	igfxnk32.exe
3564	igfxnk32.exe
3564	igfxnk32.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe

pid process

4884 f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe

pid	process
4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exef5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exeigfxnk32.exeigfxnk32.exe

description	pid	process	target process
PID 4884 wrote to memory of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 4884 wrote to memory of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 4884 wrote to memory of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 4884 wrote to memory of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 4884 wrote to memory of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 4884 wrote to memory of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 4884 wrote to memory of 2504	4884	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
PID 2504 wrote to memory of 2548	2504	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	igfxnk32.exe
PID 2504 wrote to memory of 2548	2504	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	igfxnk32.exe
PID 2504 wrote to memory of 2548	2504	f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe	igfxnk32.exe
PID 2548 wrote to memory of 3564	2548	igfxnk32.exe	igfxnk32.exe
PID 2548 wrote to memory of 3564	2548	igfxnk32.exe	igfxnk32.exe
PID 2548 wrote to memory of 3564	2548	igfxnk32.exe	igfxnk32.exe
PID 2548 wrote to memory of 3564	2548	igfxnk32.exe	igfxnk32.exe
PID 2548 wrote to memory of 3564	2548	igfxnk32.exe	igfxnk32.exe
PID 2548 wrote to memory of 3564	2548	igfxnk32.exe	igfxnk32.exe
PID 2548 wrote to memory of 3564	2548	igfxnk32.exe	igfxnk32.exe
PID 3564 wrote to memory of 3420	3564	igfxnk32.exe	Explorer.EXE
PID 3564 wrote to memory of 3420	3564	igfxnk32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3420

C:\Users\Admin\AppData\Local\Temp\f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4884

C:\Users\Admin\AppData\Local\Temp\f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5d35f9024fd14fa1cb3f3df4a0ca46c_JaffaCakes118.exe"
3⤵
- Checks computer location settings
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2504

C:\Windows\SysWOW64\igfxnk32.exe
"C:\Windows\SysWOW64\igfxnk32.exe" C:\Users\Admin\AppData\Local\Temp\F5D35F~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2548

C:\Windows\SysWOW64\igfxnk32.exe
"C:\Windows\SysWOW64\igfxnk32.exe" C:\Users\Admin\AppData\Local\Temp\F5D35F~1.EXE
5⤵
- Modifies firewall policy service
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\igfxnk32.exe
Filesize
157KB

MD5
f5d35f9024fd14fa1cb3f3df4a0ca46c

SHA1
ef737adeee6a16e8cb067b669a860026b40eba8b

SHA256
57a50dd84101f43cae0aee1022dc2a6fe1198477a8c4ac97d4ce0b283d433bf2

SHA512
f6c87175dae336a80f7d46a7e7bf47195ace6393e6e31e8893f3e550ccc6c57f69ddfd9bba65b427c9d65c5a17b9f550249c96ba10de004173a6596ddd384171

Download Submit
memory/2504-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2504-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2504-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2504-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2504-44-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2504-45-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3564-43-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3564-46-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3564-47-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads