metasploit | d26fca1218120a9f0304c6d06ccbaf7b1891edf9a58ab808197aa73459b5afa3

General

Target

4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
Size

243KB
MD5

4a235ba58cbe5f002c3c9df13a90d284
SHA1

0b3a878119ca739d90d34696480a60418d0cc647
SHA256

d26fca1218120a9f0304c6d06ccbaf7b1891edf9a58ab808197aa73459b5afa3
SHA512

9b27c792c3102db514ceadc640a38a2e251390efb9d3dbd12dcc1589d9c362d067ba75990be980dcccc4741a4663e03f9d03031911ee885163a224c07bba75a8
SSDEEP

6144:NNh6b+z4AKoesoeOxNbjBIIhtScL32x78qLKXjJ:38KkAKoejew/BIySRx7pKV

Score

10^/10

metasploit backdoor 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\StandardProfile\AuthorizedApplications\List	wmptk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmptk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmptk32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptk32.exe = "C:\\Windows\\SysWOW64\\wmptk32.exe:*:Enabled:Windows Network Console"	wmptk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmptk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmptk32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmptk32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptk32.exe = "C:\\Windows\\SysWOW64\\wmptk32.exe:*:Enabled:Windows Network Console"	wmptk32.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-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3140	wmptk32.exe

Executes dropped EXE 2 IoCs

pid	Process
1272	wmptk32.exe
3140	wmptk32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2880-0-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/2880-2-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/2880-4-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/2880-3-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/3140-43-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/2880-44-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/2880-45-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/3140-46-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/3140-47-0x0000000000400000-0x0000000000442000-memory.dmp	upx

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 Network Console = "C:\\Windows\\SysWOW64\\wmptk32.exe"	wmptk32.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	wmptk32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmptk32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	wmptk32.exe
File opened for modification	C:\Windows\SysWOW64\	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmptk32.exe	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmptk32.exe	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3432 set thread context of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 1272 set thread context of 3140	1272	wmptk32.exe	91

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2880	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
2880	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
2880	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
2880	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
3140	wmptk32.exe
3140	wmptk32.exe
3140	wmptk32.exe
3140	wmptk32.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
1272	wmptk32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 3432 wrote to memory of 2880	3432	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	85
PID 2880 wrote to memory of 1272	2880	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	90
PID 2880 wrote to memory of 1272	2880	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	90
PID 2880 wrote to memory of 1272	2880	4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe	90
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 1272 wrote to memory of 3140	1272	wmptk32.exe	91
PID 3140 wrote to memory of 3456	3140	wmptk32.exe	56
PID 3140 wrote to memory of 3456	3140	wmptk32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3456
- C:\Users\Admin\AppData\Local\Temp\4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:3432
- - C:\Users\Admin\AppData\Local\Temp\4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4a235ba58cbe5f002c3c9df13a90d284_JaffaCakes118.exe"
    3⤵
    - Checks computer location settings
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2880
  - - C:\Windows\SysWOW64\wmptk32.exe
      "C:\Windows\SysWOW64\wmptk32.exe" C:\Users\Admin\AppData\Local\Temp\4A235B~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:1272
    - - C:\Windows\SysWOW64\wmptk32.exe
        
        "C:\Windows\SysWOW64\wmptk32.exe" C:\Users\Admin\AppData\Local\Temp\4A235B~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
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:3140

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\wmptk32.exe

Filesize
243KB

MD5
4a235ba58cbe5f002c3c9df13a90d284

SHA1
0b3a878119ca739d90d34696480a60418d0cc647

SHA256
d26fca1218120a9f0304c6d06ccbaf7b1891edf9a58ab808197aa73459b5afa3

SHA512
9b27c792c3102db514ceadc640a38a2e251390efb9d3dbd12dcc1589d9c362d067ba75990be980dcccc4741a4663e03f9d03031911ee885163a224c07bba75a8

Download Submit
memory/2880-0-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2880-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2880-4-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2880-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2880-44-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2880-45-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3140-43-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3140-46-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3140-47-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads