metasploit | 37e74fa9bd95561d810a994531915e1ee5e8286b7472986365ec531957169725

General

Target

f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
Size

204KB
MD5

f6a2933c59673487002368c1dc413819
SHA1

1ec1b5abb7aa5e760ead8364bb286faef58f8c8e
SHA256

37e74fa9bd95561d810a994531915e1ee5e8286b7472986365ec531957169725
SHA512

dd9b6f5e13203a2b02748bafd3a7777bf406c309be8192053f2f23802c39a4c9beb07822c88bd88fe4254d604d465a69a6c1fc6d8fe2f5d2dd90bcbf29b5e01c
SSDEEP

3072:PSI57HYVDFKKXg9QflneghkL9zqFLjp3FYLypcNR2DHxZhCxt2Swd4lw+p3:PzkDFHQtghkL2SWVDPUdx

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	wmpht32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpht32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpht32.exe = "C:\\Windows\\SysWOW64\\wmpht32.exe:*:Enabled:Windows Help"	wmpht32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpht32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpht32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpht32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpht32.exe = "C:\\Windows\\SysWOW64\\wmpht32.exe:*:Enabled:Windows Help"	wmpht32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpht32.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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1052	wmpht32.exe

Executes dropped EXE 2 IoCs

pid	Process
2164	wmpht32.exe
1052	wmpht32.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 Help = "C:\\Windows\\SysWOW64\\wmpht32.exe"	wmpht32.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	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpht32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpht32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	wmpht32.exe
File opened for modification	C:\Windows\SysWOW64\	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpht32.exe	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpht32.exe	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2208 set thread context of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 2164 set thread context of 1052	2164	wmpht32.exe	88

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3712-0-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3712-2-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3712-3-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3712-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3712-31-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3712-41-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1052-45-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1052-47-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1052-46-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1052-48-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1052-49-0x0000000000400000-0x0000000000451000-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	wmpht32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpht32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3712	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
3712	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
3712	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
3712	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
1052	wmpht32.exe
1052	wmpht32.exe
1052	wmpht32.exe
1052	wmpht32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 2208 wrote to memory of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 2208 wrote to memory of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 2208 wrote to memory of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 2208 wrote to memory of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 2208 wrote to memory of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 2208 wrote to memory of 3712	2208	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	84
PID 3712 wrote to memory of 2164	3712	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	85
PID 3712 wrote to memory of 2164	3712	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	85
PID 3712 wrote to memory of 2164	3712	f6a2933c59673487002368c1dc413819_JaffaCakes118.exe	85
PID 2164 wrote to memory of 1052	2164	wmpht32.exe	88
PID 2164 wrote to memory of 1052	2164	wmpht32.exe	88
PID 2164 wrote to memory of 1052	2164	wmpht32.exe	88
PID 2164 wrote to memory of 1052	2164	wmpht32.exe	88
PID 2164 wrote to memory of 1052	2164	wmpht32.exe	88
PID 2164 wrote to memory of 1052	2164	wmpht32.exe	88
PID 2164 wrote to memory of 1052	2164	wmpht32.exe	88
PID 1052 wrote to memory of 3464	1052	wmpht32.exe	56
PID 1052 wrote to memory of 3464	1052	wmpht32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3464
- C:\Users\Admin\AppData\Local\Temp\f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f6a2933c59673487002368c1dc413819_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Users\Admin\AppData\Local\Temp\f6a2933c59673487002368c1dc413819_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f6a2933c59673487002368c1dc413819_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:3712
  - - C:\Windows\SysWOW64\wmpht32.exe
      "C:\Windows\SysWOW64\wmpht32.exe" C:\Users\Admin\AppData\Local\Temp\F6A293~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2164
    - - C:\Windows\SysWOW64\wmpht32.exe
        
        "C:\Windows\SysWOW64\wmpht32.exe" C:\Users\Admin\AppData\Local\Temp\F6A293~1.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:1052

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\wmpht32.exe

Filesize
204KB

MD5
f6a2933c59673487002368c1dc413819

SHA1
1ec1b5abb7aa5e760ead8364bb286faef58f8c8e

SHA256
37e74fa9bd95561d810a994531915e1ee5e8286b7472986365ec531957169725

SHA512
dd9b6f5e13203a2b02748bafd3a7777bf406c309be8192053f2f23802c39a4c9beb07822c88bd88fe4254d604d465a69a6c1fc6d8fe2f5d2dd90bcbf29b5e01c

Download Submit
memory/1052-45-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1052-47-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1052-46-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1052-48-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1052-49-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3712-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3712-2-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3712-3-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3712-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3712-31-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3712-41-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads