metasploit | 5d656089368846cf49ee41ac4fa113edcc90de50b6e3f85bf7c52d0fe35d6626

General

Target

d34f314214610077b51587f5bda78689_JaffaCakes118.exe
Size

187KB
MD5

d34f314214610077b51587f5bda78689
SHA1

f76075da5db7fa162acc1ea0e48fd04459a3390d
SHA256

5d656089368846cf49ee41ac4fa113edcc90de50b6e3f85bf7c52d0fe35d6626
SHA512

412211d364f1ebb98f6ef93c29ae33f8d2663db380f9d3d48b88e1f3d4d4e6e9fb5895beb0059f0f12d7ff54e37cfa6ac5756868e9380b3acc1ce6466d3bc85a
SSDEEP

3072:mINloo+QAJivqG9skRwvJddnevQ+DGpe6shX2LvwwZ2RF2rdRNmdkPIf:+ofvJyvJ7neIAGpLs9xXorfNmOPe

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\DomainProfile\AuthorizedApplications	wmpbt32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbt32.exe = "C:\\Windows\\SysWOW64\\wmpbt32.exe:*:Enabled:WinMedia pServer"	wmpbt32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpbt32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpbt32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpbt32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbt32.exe = "C:\\Windows\\SysWOW64\\wmpbt32.exe:*:Enabled:WinMedia pServer"	wmpbt32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpbt32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpbt32.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	d34f314214610077b51587f5bda78689_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
940	wmpbt32.exe

Executes dropped EXE 2 IoCs

pid	Process
2992	wmpbt32.exe
940	wmpbt32.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 pServer = "C:\\Windows\\SysWOW64\\wmpbt32.exe"	wmpbt32.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	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpbt32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpbt32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpbt32.exe	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpbt32.exe	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpbt32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1728 set thread context of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 2992 set thread context of 940	2992	wmpbt32.exe	88

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/548-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/548-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/548-3-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/548-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/548-40-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/940-43-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/548-45-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/548-46-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral2/memory/940-47-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/940-48-0x0000000000400000-0x000000000044C000-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	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpbt32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpbt32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	d34f314214610077b51587f5bda78689_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
548	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
548	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
548	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
548	d34f314214610077b51587f5bda78689_JaffaCakes118.exe
940	wmpbt32.exe
940	wmpbt32.exe
940	wmpbt32.exe
940	wmpbt32.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 1728 wrote to memory of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 1728 wrote to memory of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 1728 wrote to memory of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 1728 wrote to memory of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 1728 wrote to memory of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 1728 wrote to memory of 548	1728	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	81
PID 548 wrote to memory of 2992	548	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	87
PID 548 wrote to memory of 2992	548	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	87
PID 548 wrote to memory of 2992	548	d34f314214610077b51587f5bda78689_JaffaCakes118.exe	87
PID 2992 wrote to memory of 940	2992	wmpbt32.exe	88
PID 2992 wrote to memory of 940	2992	wmpbt32.exe	88
PID 2992 wrote to memory of 940	2992	wmpbt32.exe	88
PID 2992 wrote to memory of 940	2992	wmpbt32.exe	88
PID 2992 wrote to memory of 940	2992	wmpbt32.exe	88
PID 2992 wrote to memory of 940	2992	wmpbt32.exe	88
PID 2992 wrote to memory of 940	2992	wmpbt32.exe	88
PID 940 wrote to memory of 3436	940	wmpbt32.exe	54
PID 940 wrote to memory of 3436	940	wmpbt32.exe	54

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3436
- C:\Users\Admin\AppData\Local\Temp\d34f314214610077b51587f5bda78689_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d34f314214610077b51587f5bda78689_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Users\Admin\AppData\Local\Temp\d34f314214610077b51587f5bda78689_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d34f314214610077b51587f5bda78689_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:548
  - - C:\Windows\SysWOW64\wmpbt32.exe
      "C:\Windows\SysWOW64\wmpbt32.exe" C:\Users\Admin\AppData\Local\Temp\D34F31~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2992
    - - C:\Windows\SysWOW64\wmpbt32.exe
        
        "C:\Windows\SysWOW64\wmpbt32.exe" C:\Users\Admin\AppData\Local\Temp\D34F31~1.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:940

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\wmpbt32.exe

Filesize
187KB

MD5
d34f314214610077b51587f5bda78689

SHA1
f76075da5db7fa162acc1ea0e48fd04459a3390d

SHA256
5d656089368846cf49ee41ac4fa113edcc90de50b6e3f85bf7c52d0fe35d6626

SHA512
412211d364f1ebb98f6ef93c29ae33f8d2663db380f9d3d48b88e1f3d4d4e6e9fb5895beb0059f0f12d7ff54e37cfa6ac5756868e9380b3acc1ce6466d3bc85a

Download Submit
memory/548-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/548-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/548-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/548-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/548-40-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/548-45-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/548-46-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/940-43-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-47-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/940-48-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads