metasploit | f65a444efe95b7eec3f2d1465023a7b99c0508531cccd217b089a757a32482a9

General

Target

dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
Size

252KB
MD5

dccc1f3a9bda284c0dd09f856697837a
SHA1

5d65ded94ba3584316ea45baa476e926bc4b35ca
SHA256

f65a444efe95b7eec3f2d1465023a7b99c0508531cccd217b089a757a32482a9
SHA512

20236b7b5dfd96bcf3875d6e9c3347517b3dd9c7012b4d51c963199c8afc475f275c2ec227f12a047f4815ceb78def9dfb47547594e9ea2c1a7ea200129a0c2c
SSDEEP

6144:KiWlHsfj7GV2dEtJDU+jMms0cFJSjwkg:soGBU8Mn0gJSskg

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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpcn32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpcn32.exe = "C:\\Windows\\SysWOW64\\wmpcn32.exe:*:Enabled:Windows Core Driver"	wmpcn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpcn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpcn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpcn32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpcn32.exe = "C:\\Windows\\SysWOW64\\wmpcn32.exe:*:Enabled:Windows Core Driver"	wmpcn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpcn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpcn32.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1688	wmpcn32.exe

Executes dropped EXE 2 IoCs

pid	Process
244	wmpcn32.exe
1688	wmpcn32.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\Windows Core Driver = "C:\\Windows\\SysWOW64\\wmpcn32.exe"	wmpcn32.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	wmpcn32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpcn32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpcn32.exe	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpcn32.exe	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpcn32.exe
File opened for modification	C:\Windows\SysWOW64\wmpcn32.exe	wmpcn32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4816 set thread context of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 244 set thread context of 1688	244	wmpcn32.exe	89

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4364-0-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4364-2-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4364-4-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4364-3-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4364-37-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1688-45-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1688-46-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1688-47-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1688-51-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1688-58-0x0000000000400000-0x0000000000467000-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	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpcn32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpcn32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4364	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
4364	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
4364	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
4364	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe
1688	wmpcn32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4816 wrote to memory of 4364	4816	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	82
PID 4364 wrote to memory of 244	4364	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	83
PID 4364 wrote to memory of 244	4364	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	83
PID 4364 wrote to memory of 244	4364	dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe	83
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 244 wrote to memory of 1688	244	wmpcn32.exe	89
PID 1688 wrote to memory of 3368	1688	wmpcn32.exe	56
PID 1688 wrote to memory of 3368	1688	wmpcn32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3368
- C:\Users\Admin\AppData\Local\Temp\dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4816
- - C:\Users\Admin\AppData\Local\Temp\dccc1f3a9bda284c0dd09f856697837a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dccc1f3a9bda284c0dd09f856697837a_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:4364
  - - C:\Windows\SysWOW64\wmpcn32.exe
      "C:\Windows\SysWOW64\wmpcn32.exe" C:\Users\Admin\AppData\Local\Temp\DCCC1F~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:244
    - - C:\Windows\SysWOW64\wmpcn32.exe
        
        "C:\Windows\SysWOW64\wmpcn32.exe" C:\Users\Admin\AppData\Local\Temp\DCCC1F~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:1688

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\wmpcn32.exe

Filesize
252KB

MD5
dccc1f3a9bda284c0dd09f856697837a

SHA1
5d65ded94ba3584316ea45baa476e926bc4b35ca

SHA256
f65a444efe95b7eec3f2d1465023a7b99c0508531cccd217b089a757a32482a9

SHA512
20236b7b5dfd96bcf3875d6e9c3347517b3dd9c7012b4d51c963199c8afc475f275c2ec227f12a047f4815ceb78def9dfb47547594e9ea2c1a7ea200129a0c2c

Download Submit
memory/1688-45-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1688-46-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1688-47-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1688-51-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1688-58-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4364-0-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4364-2-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4364-4-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4364-3-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4364-37-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads