metasploit | 5405f81cabd20e873ecb81a6058dbee4f0db73ca77e5df8118fff5b7cbe74bce

General

Target

ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
Size

198KB
MD5

ebd0571e324a8c52795134d2df6346e4
SHA1

ade8d6b19e4be8c796980660506757b0957e2e8c
SHA256

5405f81cabd20e873ecb81a6058dbee4f0db73ca77e5df8118fff5b7cbe74bce
SHA512

aebe6878479d53df18974f994b2254196a032df22f8f74c5a77b424509691121ff0648acbde8ee7eaca123ac54a2e5ef4fce3381311efa6b094c78b49299a307
SSDEEP

3072:sN23fBIXgKDtoswRmkRWVf1RyNuIh0kusGc8oONv2eaoY:sN2vBIXgpstvVf1RyNbu/B5aoY

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\DomainProfile	wmpnb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpnb86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpnb86.exe = "C:\\Windows\\SysWOW64\\wmpnb86.exe:*:Enabled:Windows Networking Console"	wmpnb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpnb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpnb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpnb86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpnb86.exe = "C:\\Windows\\SysWOW64\\wmpnb86.exe:*:Enabled:Windows Networking Console"	wmpnb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpnb86.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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4700	wmpnb86.exe

Executes dropped EXE 2 IoCs

pid	Process
2708	wmpnb86.exe
4700	wmpnb86.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/840-0-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/840-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/840-3-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/840-4-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4700-42-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/840-44-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/840-45-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/4700-46-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4700-47-0x0000000000400000-0x000000000044B000-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\Windows Networking Console = "C:\\Windows\\SysWOW64\\wmpnb86.exe"	wmpnb86.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	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpnb86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpnb86.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	wmpnb86.exe
File opened for modification	C:\Windows\SysWOW64\	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpnb86.exe	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpnb86.exe	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4144 set thread context of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 2708 set thread context of 4700	2708	wmpnb86.exe	84

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	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpnb86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpnb86.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
840	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
840	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
840	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
840	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
4700	wmpnb86.exe
4700	wmpnb86.exe
4700	wmpnb86.exe
4700	wmpnb86.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
2708	wmpnb86.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 4144 wrote to memory of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 4144 wrote to memory of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 4144 wrote to memory of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 4144 wrote to memory of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 4144 wrote to memory of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 4144 wrote to memory of 840	4144	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	82
PID 840 wrote to memory of 2708	840	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	83
PID 840 wrote to memory of 2708	840	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	83
PID 840 wrote to memory of 2708	840	ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe	83
PID 2708 wrote to memory of 4700	2708	wmpnb86.exe	84
PID 2708 wrote to memory of 4700	2708	wmpnb86.exe	84
PID 2708 wrote to memory of 4700	2708	wmpnb86.exe	84
PID 2708 wrote to memory of 4700	2708	wmpnb86.exe	84
PID 2708 wrote to memory of 4700	2708	wmpnb86.exe	84
PID 2708 wrote to memory of 4700	2708	wmpnb86.exe	84
PID 2708 wrote to memory of 4700	2708	wmpnb86.exe	84
PID 4700 wrote to memory of 3464	4700	wmpnb86.exe	56
PID 4700 wrote to memory of 3464	4700	wmpnb86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3464
- C:\Users\Admin\AppData\Local\Temp\ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:4144
- - C:\Users\Admin\AppData\Local\Temp\ebd0571e324a8c52795134d2df6346e4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ebd0571e324a8c52795134d2df6346e4_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:840
  - - C:\Windows\SysWOW64\wmpnb86.exe
      "C:\Windows\SysWOW64\wmpnb86.exe" C:\Users\Admin\AppData\Local\Temp\EBD057~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:2708
    - - C:\Windows\SysWOW64\wmpnb86.exe
        
        "C:\Windows\SysWOW64\wmpnb86.exe" C:\Users\Admin\AppData\Local\Temp\EBD057~1.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:4700

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\wmpnb86.exe

Filesize
198KB

MD5
ebd0571e324a8c52795134d2df6346e4

SHA1
ade8d6b19e4be8c796980660506757b0957e2e8c

SHA256
5405f81cabd20e873ecb81a6058dbee4f0db73ca77e5df8118fff5b7cbe74bce

SHA512
aebe6878479d53df18974f994b2254196a032df22f8f74c5a77b424509691121ff0648acbde8ee7eaca123ac54a2e5ef4fce3381311efa6b094c78b49299a307

Download Submit
memory/840-0-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/840-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/840-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/840-4-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/840-44-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/840-45-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4700-42-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4700-46-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4700-47-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads