metasploit | cebcc29357cfc2907ea6aa878b9ddd25d8d3f27ecd1fea8d82930c430a15dc32

General

Target

e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
Size

252KB
MD5

e3f719bff7a8b9f763cbf6c33a148be9
SHA1

e643cb6a79f8d7d5a93e1d30bf4361e1fc3ba4be
SHA256

cebcc29357cfc2907ea6aa878b9ddd25d8d3f27ecd1fea8d82930c430a15dc32
SHA512

ca62700883b9a2babdacb5f011d2dff389c92b02f504c25684b889904af4f812b9f1329ee4c6f6df6477bc59b0fbde98b2f913e5b6c004790f8f0a808e666dce
SSDEEP

3072:cfoC+cEvtBO9KmTiYH8gjS1FxByhkEn5vFNWmpiZ:cf7cIuauJyh/vymIZ

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	wmpsh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpsh32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsh32.exe = "C:\\Windows\\SysWOW64\\wmpsh32.exe:*:Enabled:WinMedia Service Monitor"	wmpsh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpsh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpsh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpsh32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsh32.exe = "C:\\Windows\\SysWOW64\\wmpsh32.exe:*:Enabled:WinMedia Service Monitor"	wmpsh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpsh32.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2724	wmpsh32.exe

Executes dropped EXE 2 IoCs

pid	Process
2288	wmpsh32.exe
2724	wmpsh32.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 Service Monitor = "C:\\Windows\\SysWOW64\\wmpsh32.exe"	wmpsh32.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	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpsh32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpsh32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpsh32.exe	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpsh32.exe	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpsh32.exe
File opened for modification	C:\Windows\SysWOW64\wmpsh32.exe	wmpsh32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4892 set thread context of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 2288 set thread context of 2724	2288	wmpsh32.exe	86

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1664-0-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/1664-2-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/1664-4-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/1664-3-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2724-43-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/1664-44-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2724-46-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2724-47-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2724-48-0x0000000000400000-0x0000000000466000-memory.dmp	upx
behavioral2/memory/2724-55-0x0000000000400000-0x0000000000466000-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	wmpsh32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpsh32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1664	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
1664	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
1664	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
1664	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe
2724	wmpsh32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 4892 wrote to memory of 1664	4892	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	83
PID 1664 wrote to memory of 2288	1664	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	85
PID 1664 wrote to memory of 2288	1664	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	85
PID 1664 wrote to memory of 2288	1664	e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe	85
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2288 wrote to memory of 2724	2288	wmpsh32.exe	86
PID 2724 wrote to memory of 3376	2724	wmpsh32.exe	56
PID 2724 wrote to memory of 3376	2724	wmpsh32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3376
- C:\Users\Admin\AppData\Local\Temp\e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4892
- - C:\Users\Admin\AppData\Local\Temp\e3f719bff7a8b9f763cbf6c33a148be9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e3f719bff7a8b9f763cbf6c33a148be9_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:1664
  - - C:\Windows\SysWOW64\wmpsh32.exe
      "C:\Windows\SysWOW64\wmpsh32.exe" C:\Users\Admin\AppData\Local\Temp\E3F719~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2288
    - - C:\Windows\SysWOW64\wmpsh32.exe
        
        "C:\Windows\SysWOW64\wmpsh32.exe" C:\Users\Admin\AppData\Local\Temp\E3F719~1.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:2724

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\wmpsh32.exe

Filesize
252KB

MD5
e3f719bff7a8b9f763cbf6c33a148be9

SHA1
e643cb6a79f8d7d5a93e1d30bf4361e1fc3ba4be

SHA256
cebcc29357cfc2907ea6aa878b9ddd25d8d3f27ecd1fea8d82930c430a15dc32

SHA512
ca62700883b9a2babdacb5f011d2dff389c92b02f504c25684b889904af4f812b9f1329ee4c6f6df6477bc59b0fbde98b2f913e5b6c004790f8f0a808e666dce

Download Submit
memory/1664-0-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1664-2-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1664-4-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1664-3-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1664-44-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2724-43-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2724-46-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2724-47-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2724-48-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2724-55-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads