metasploit | 3e179843782d2f676722e4b927d9f190bf082fc5057d1d5cea7b418ad7f8bec9

General

Target

ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
Size

186KB
MD5

ed2d38398f580a470b1eba9ddaa0f6e1
SHA1

5301684a5ac0fbeea47d0684294c2dcdd4c8ccf3
SHA256

3e179843782d2f676722e4b927d9f190bf082fc5057d1d5cea7b418ad7f8bec9
SHA512

c9da13618374b835314b61dec190a802cb22882bec0c760e12f28561a4d7ed112dd367007a442c0c89520b294ac5112f81fc655c91e3c727620f0af82eee4277
SSDEEP

3072:h5yCdIJi3mQFzQ4578DSPLgapKNJqq+YysX1yek0fkXACeNyGd:B/LxPLgapKN5+3nXjeoGd

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

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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpbc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpbc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpbc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbc32.exe = "C:\\Windows\\SysWOW64\\wmpbc32.exe:*:Enabled:WinMedia pServer"	wmpbc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpbc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpbc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpbc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbc32.exe = "C:\\Windows\\SysWOW64\\wmpbc32.exe:*:Enabled:WinMedia pServer"	wmpbc32.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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4520	wmpbc32.exe

Executes dropped EXE 2 IoCs

pid	Process
2696	wmpbc32.exe
4520	wmpbc32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1016-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1016-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1016-3-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1016-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1016-35-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4520-43-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1016-45-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4520-47-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4520-48-0x0000000000400000-0x000000000044C000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia pServer = "C:\\Windows\\SysWOW64\\wmpbc32.exe"	wmpbc32.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	wmpbc32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpbc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpbc32.exe	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpbc32.exe	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpbc32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 2696 set thread context of 4520	2696	wmpbc32.exe	88

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	wmpbc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpbc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1016	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
1016	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
1016	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
1016	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
4520	wmpbc32.exe
4520	wmpbc32.exe
4520	wmpbc32.exe
4520	wmpbc32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 4800 wrote to memory of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 4800 wrote to memory of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 4800 wrote to memory of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 4800 wrote to memory of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 4800 wrote to memory of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 4800 wrote to memory of 1016	4800	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	82
PID 1016 wrote to memory of 2696	1016	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	87
PID 1016 wrote to memory of 2696	1016	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	87
PID 1016 wrote to memory of 2696	1016	ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe	87
PID 2696 wrote to memory of 4520	2696	wmpbc32.exe	88
PID 2696 wrote to memory of 4520	2696	wmpbc32.exe	88
PID 2696 wrote to memory of 4520	2696	wmpbc32.exe	88
PID 2696 wrote to memory of 4520	2696	wmpbc32.exe	88
PID 2696 wrote to memory of 4520	2696	wmpbc32.exe	88
PID 2696 wrote to memory of 4520	2696	wmpbc32.exe	88
PID 2696 wrote to memory of 4520	2696	wmpbc32.exe	88
PID 4520 wrote to memory of 3544	4520	wmpbc32.exe	56
PID 4520 wrote to memory of 3544	4520	wmpbc32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3544
- C:\Users\Admin\AppData\Local\Temp\ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4800
- - C:\Users\Admin\AppData\Local\Temp\ed2d38398f580a470b1eba9ddaa0f6e1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ed2d38398f580a470b1eba9ddaa0f6e1_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:1016
  - - C:\Windows\SysWOW64\wmpbc32.exe
      "C:\Windows\SysWOW64\wmpbc32.exe" C:\Users\Admin\AppData\Local\Temp\ED2D38~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2696
    - - C:\Windows\SysWOW64\wmpbc32.exe
        
        "C:\Windows\SysWOW64\wmpbc32.exe" C:\Users\Admin\AppData\Local\Temp\ED2D38~1.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:4520

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

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Downloads

C:\Windows\SysWOW64\wmpbc32.exe

Filesize
186KB

MD5
ed2d38398f580a470b1eba9ddaa0f6e1

SHA1
5301684a5ac0fbeea47d0684294c2dcdd4c8ccf3

SHA256
3e179843782d2f676722e4b927d9f190bf082fc5057d1d5cea7b418ad7f8bec9

SHA512
c9da13618374b835314b61dec190a802cb22882bec0c760e12f28561a4d7ed112dd367007a442c0c89520b294ac5112f81fc655c91e3c727620f0af82eee4277

Download Submit
memory/1016-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1016-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1016-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1016-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1016-35-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1016-45-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4520-43-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4520-47-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4520-48-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads