metasploit | e23c5b1ac4f01aab19584688dca462885d70f5c53c0171a66e56eaa29d4122d3

General

Target

6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
Size

198KB
MD5

6a2022a03a55c4e40bf5bd7086c456e5
SHA1

c1a29caf59a3c7cc545677e1aa4b7b837295bbbb
SHA256

e23c5b1ac4f01aab19584688dca462885d70f5c53c0171a66e56eaa29d4122d3
SHA512

4c8ab7d8c35c85c7f9114fecc922e3c6834dea09c98bd2b65bf0aeac3956619629f2f3e64ae278a06596e6ca97a21554c09ca7983fa9488c2de9f9c68459d4fb
SSDEEP

3072:kN23fBIXgKDtmnB0mYCmHzX4pcQTz6RfuOXU1yGyalw8szX2hZK/:kN2vBIXgrnBIqSQTWRPPGXw8mXr

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\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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1156	wmpnb86.exe

Executes dropped EXE 2 IoCs

pid	Process
1300	wmpnb86.exe
1156	wmpnb86.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3512-0-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3512-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3512-3-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3512-4-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1156-42-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3512-45-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/3512-44-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1156-46-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1156-47-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1156-48-0x0000000000400000-0x000000000044B000-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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpnb86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpnb86.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpnb86.exe	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpnb86.exe	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpnb86.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4524 set thread context of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 1300 set thread context of 1156	1300	wmpnb86.exe	95

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	wmpnb86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpnb86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3512	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
3512	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
3512	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
3512	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
1156	wmpnb86.exe
1156	wmpnb86.exe
1156	wmpnb86.exe
1156	wmpnb86.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 4524 wrote to memory of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 4524 wrote to memory of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 4524 wrote to memory of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 4524 wrote to memory of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 4524 wrote to memory of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 4524 wrote to memory of 3512	4524	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	84
PID 3512 wrote to memory of 1300	3512	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	94
PID 3512 wrote to memory of 1300	3512	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	94
PID 3512 wrote to memory of 1300	3512	6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe	94
PID 1300 wrote to memory of 1156	1300	wmpnb86.exe	95
PID 1300 wrote to memory of 1156	1300	wmpnb86.exe	95
PID 1300 wrote to memory of 1156	1300	wmpnb86.exe	95
PID 1300 wrote to memory of 1156	1300	wmpnb86.exe	95
PID 1300 wrote to memory of 1156	1300	wmpnb86.exe	95
PID 1300 wrote to memory of 1156	1300	wmpnb86.exe	95
PID 1300 wrote to memory of 1156	1300	wmpnb86.exe	95
PID 1156 wrote to memory of 3464	1156	wmpnb86.exe	56
PID 1156 wrote to memory of 3464	1156	wmpnb86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3464
- C:\Users\Admin\AppData\Local\Temp\6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:4524
- - C:\Users\Admin\AppData\Local\Temp\6a2022a03a55c4e40bf5bd7086c456e5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6a2022a03a55c4e40bf5bd7086c456e5_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:3512
  - - C:\Windows\SysWOW64\wmpnb86.exe
      "C:\Windows\SysWOW64\wmpnb86.exe" C:\Users\Admin\AppData\Local\Temp\6A2022~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1300
    - - C:\Windows\SysWOW64\wmpnb86.exe
        
        "C:\Windows\SysWOW64\wmpnb86.exe" C:\Users\Admin\AppData\Local\Temp\6A2022~1.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:1156

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\wmpnb86.exe

Filesize
198KB

MD5
6a2022a03a55c4e40bf5bd7086c456e5

SHA1
c1a29caf59a3c7cc545677e1aa4b7b837295bbbb

SHA256
e23c5b1ac4f01aab19584688dca462885d70f5c53c0171a66e56eaa29d4122d3

SHA512
4c8ab7d8c35c85c7f9114fecc922e3c6834dea09c98bd2b65bf0aeac3956619629f2f3e64ae278a06596e6ca97a21554c09ca7983fa9488c2de9f9c68459d4fb

Download Submit
memory/1156-42-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1156-46-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1156-47-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1156-48-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3512-0-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3512-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3512-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3512-4-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3512-45-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/3512-44-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads