metasploit | 482108fbb466a1a178f67e4408c0751955dd587fa56ee6f6485511c785b40b40

General

Target

b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
Size

186KB
MD5

b47c94d3a3f02875f66865fb0b730988
SHA1

077ec3265559e3a4ba56c79013e1f5c0e494c467
SHA256

482108fbb466a1a178f67e4408c0751955dd587fa56ee6f6485511c785b40b40
SHA512

2c75c27fb8edebfa32f0d1d9e126046577fb41d80acf0075b2e8baa632839363f7da9d1f2d193dd0b0b055a6dac0b6da065348cd475c65d7fc2067b47e6db595
SSDEEP

3072:71qgiTJiDB6t5KakPrYUYAkDl36xokKLAiC6LndU0XRcQYkI9pNh971:ziqakD9ScoKVundPOQHCVD

Score

10^/10

metasploit backdoor discovery 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
Metasploit family
metasploit

Modifies firewall policy service 3 TTPs 8 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbl32.exe = "C:\\Windows\\SysWOW64\\wmpbl32.exe:*:Enabled:WinMedia tServer"	wmpbl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpbl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpbl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpbl32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbl32.exe = "C:\\Windows\\SysWOW64\\wmpbl32.exe:*:Enabled:WinMedia tServer"	wmpbl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpbl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpbl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpbl32.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4260	wmpbl32.exe

Executes dropped EXE 2 IoCs

pid	Process
2988	wmpbl32.exe
4260	wmpbl32.exe

Adds Run key to start application 2 TTPs 1 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\WinMedia tServer = "C:\\Windows\\SysWOW64\\wmpbl32.exe"	wmpbl32.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpbl32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpbl32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpbl32.exe	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpbl32.exe	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpbl32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3356 set thread context of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 2988 set thread context of 4260	2988	wmpbl32.exe	92

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3844-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3844-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3844-3-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3844-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3844-40-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4260-43-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3844-45-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3844-46-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral2/memory/4260-47-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4260-48-0x0000000000400000-0x000000000044C000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpbl32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpbl32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3844	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
3844	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
3844	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
3844	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
4260	wmpbl32.exe
4260	wmpbl32.exe
4260	wmpbl32.exe
4260	wmpbl32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3356 wrote to memory of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 3356 wrote to memory of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 3356 wrote to memory of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 3356 wrote to memory of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 3356 wrote to memory of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 3356 wrote to memory of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 3356 wrote to memory of 3844	3356	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	83
PID 3844 wrote to memory of 2988	3844	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	91
PID 3844 wrote to memory of 2988	3844	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	91
PID 3844 wrote to memory of 2988	3844	b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe	91
PID 2988 wrote to memory of 4260	2988	wmpbl32.exe	92
PID 2988 wrote to memory of 4260	2988	wmpbl32.exe	92
PID 2988 wrote to memory of 4260	2988	wmpbl32.exe	92
PID 2988 wrote to memory of 4260	2988	wmpbl32.exe	92
PID 2988 wrote to memory of 4260	2988	wmpbl32.exe	92
PID 2988 wrote to memory of 4260	2988	wmpbl32.exe	92
PID 2988 wrote to memory of 4260	2988	wmpbl32.exe	92
PID 4260 wrote to memory of 3368	4260	wmpbl32.exe	56
PID 4260 wrote to memory of 3368	4260	wmpbl32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3368
- C:\Users\Admin\AppData\Local\Temp\b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3356
- - C:\Users\Admin\AppData\Local\Temp\b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b47c94d3a3f02875f66865fb0b730988_JaffaCakes118.exe"
    3⤵
    - Checks computer location settings
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3844
  - - C:\Windows\SysWOW64\wmpbl32.exe
      "C:\Windows\SysWOW64\wmpbl32.exe" C:\Users\Admin\AppData\Local\Temp\B47C94~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2988
    - - C:\Windows\SysWOW64\wmpbl32.exe
        
        "C:\Windows\SysWOW64\wmpbl32.exe" C:\Users\Admin\AppData\Local\Temp\B47C94~1.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
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:4260

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

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\wmpbl32.exe

Filesize
186KB

MD5
b47c94d3a3f02875f66865fb0b730988

SHA1
077ec3265559e3a4ba56c79013e1f5c0e494c467

SHA256
482108fbb466a1a178f67e4408c0751955dd587fa56ee6f6485511c785b40b40

SHA512
2c75c27fb8edebfa32f0d1d9e126046577fb41d80acf0075b2e8baa632839363f7da9d1f2d193dd0b0b055a6dac0b6da065348cd475c65d7fc2067b47e6db595

Download Submit
memory/3844-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3844-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3844-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3844-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3844-40-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3844-45-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3844-46-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4260-43-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4260-47-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4260-48-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads