metasploit | 0f8e47dbb41a50448109ccd3005c3d9866256c0f65d678b8ce06423c39176c69

General

Target

fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
Size

186KB
MD5

fbb6bc08014b892ac16cb0e20199cf4b
SHA1

3b5c8814d593c8de22a2643198b87ea1226a0b1d
SHA256

0f8e47dbb41a50448109ccd3005c3d9866256c0f65d678b8ce06423c39176c69
SHA512

87f26a29c03608b856b893f7f31e1f621ccff294819c679efb00b912b9f1d81f3e78dd55508fdc0c4b42b6a906a90468c1409ca433f3caef1d7f1625263330a7
SSDEEP

3072:uPhMkJih11qfY5owW3zb/pJ4H8YsDkDajm9JxY552YIJV7air:N1wf/oHKDjmTI8Jr

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	wmpbv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpbv32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbv32.exe = "C:\\Windows\\SysWOW64\\wmpbv32.exe:*:Enabled:WinMedia hServer"	wmpbv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpbv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpbv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpbv32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbv32.exe = "C:\\Windows\\SysWOW64\\wmpbv32.exe:*:Enabled:WinMedia hServer"	wmpbv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpbv32.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
5024	wmpbv32.exe

Executes dropped EXE 2 IoCs

pid	Process
2520	wmpbv32.exe
5024	wmpbv32.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 hServer = "C:\\Windows\\SysWOW64\\wmpbv32.exe"	wmpbv32.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	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpbv32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpbv32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpbv32.exe	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpbv32.exe	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpbv32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 2520 set thread context of 5024	2520	wmpbv32.exe	84

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1908-1-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1908-5-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1908-6-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1908-7-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1908-34-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral2/memory/1908-41-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1908-45-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/5024-53-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/5024-52-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/5024-51-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/5024-49-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/5024-54-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/5024-55-0x0000000000400000-0x000000000044C000-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	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpbv32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpbv32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1908	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
1908	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
1908	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
1908	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
5024	wmpbv32.exe
5024	wmpbv32.exe
5024	wmpbv32.exe
5024	wmpbv32.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 1888 wrote to memory of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 1888 wrote to memory of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 1888 wrote to memory of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 1888 wrote to memory of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 1888 wrote to memory of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 1888 wrote to memory of 1908	1888	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	82
PID 1908 wrote to memory of 2520	1908	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	83
PID 1908 wrote to memory of 2520	1908	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	83
PID 1908 wrote to memory of 2520	1908	fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe	83
PID 2520 wrote to memory of 5024	2520	wmpbv32.exe	84
PID 2520 wrote to memory of 5024	2520	wmpbv32.exe	84
PID 2520 wrote to memory of 5024	2520	wmpbv32.exe	84
PID 2520 wrote to memory of 5024	2520	wmpbv32.exe	84
PID 2520 wrote to memory of 5024	2520	wmpbv32.exe	84
PID 2520 wrote to memory of 5024	2520	wmpbv32.exe	84
PID 2520 wrote to memory of 5024	2520	wmpbv32.exe	84
PID 5024 wrote to memory of 3532	5024	wmpbv32.exe	56
PID 5024 wrote to memory of 3532	5024	wmpbv32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3532
- C:\Users\Admin\AppData\Local\Temp\fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1888
- - C:\Users\Admin\AppData\Local\Temp\fbb6bc08014b892ac16cb0e20199cf4b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fbb6bc08014b892ac16cb0e20199cf4b_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:1908
  - - C:\Windows\SysWOW64\wmpbv32.exe
      "C:\Windows\SysWOW64\wmpbv32.exe" C:\Users\Admin\AppData\Local\Temp\FBB6BC~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2520
    - - C:\Windows\SysWOW64\wmpbv32.exe
        
        "C:\Windows\SysWOW64\wmpbv32.exe" C:\Users\Admin\AppData\Local\Temp\FBB6BC~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:5024

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\wmpbv32.exe

Filesize
186KB

MD5
fbb6bc08014b892ac16cb0e20199cf4b

SHA1
3b5c8814d593c8de22a2643198b87ea1226a0b1d

SHA256
0f8e47dbb41a50448109ccd3005c3d9866256c0f65d678b8ce06423c39176c69

SHA512
87f26a29c03608b856b893f7f31e1f621ccff294819c679efb00b912b9f1d81f3e78dd55508fdc0c4b42b6a906a90468c1409ca433f3caef1d7f1625263330a7

Download Submit
memory/1888-4-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1888-0-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1908-34-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1908-45-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1908-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1908-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1908-3-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1908-1-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1908-41-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1908-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2520-50-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/5024-53-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5024-52-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5024-51-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5024-49-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5024-54-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5024-55-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads