metasploit | ac83d3e73d69e840f2c48837f844d419155497ab2f55f1ab49967a8f1b891e8f

General

Target

17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
Size

247KB
MD5

17753b4da6fa70b9f38fe116371836bf
SHA1

6ea4cfd28d81913957b4078fd4816c4fc40fa08e
SHA256

ac83d3e73d69e840f2c48837f844d419155497ab2f55f1ab49967a8f1b891e8f
SHA512

fb7d7a8b5664c442d5ec58d2a36cd7f831aa65b5511bfaf49764c137f4d16e8c88135019e1ec438a04d9e8ed5c2d9cb2cbf51e7e4b927c36b81a0c1135fb132d
SSDEEP

3072:+TFA+zFNys+dvjcX/qD6N2OSEUGo6Vtt3CtSgGGSGzQTeZ8J2CwwL3kqp3:+/zTysGL0C3cXlgGGJXZA2C9L/p3

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\StandardProfile\AuthorizedApplications	wmptd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptd32.exe = "C:\\Windows\\SysWOW64\\wmptd32.exe:*:Enabled:Windows Data Service"	wmptd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmptd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmptd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmptd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptd32.exe = "C:\\Windows\\SysWOW64\\wmptd32.exe:*:Enabled:Windows Data Service"	wmptd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmptd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmptd32.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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
684	wmptd32.exe

Executes dropped EXE 2 IoCs

pid	Process
4248	wmptd32.exe
684	wmptd32.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 Data Service = "C:\\Windows\\SysWOW64\\wmptd32.exe"	wmptd32.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	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmptd32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmptd32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	wmptd32.exe
File opened for modification	C:\Windows\SysWOW64\wmptd32.exe	wmptd32.exe
File opened for modification	C:\Windows\SysWOW64\	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmptd32.exe	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmptd32.exe	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3464 set thread context of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 4248 set thread context of 684	4248	wmptd32.exe	84

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4200-2-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4200-1-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4200-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4200-6-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4200-7-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/684-46-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4200-48-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/684-50-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/684-51-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/684-52-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/684-59-0x0000000000400000-0x0000000000453000-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	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmptd32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmptd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
4200	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
4200	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
4200	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
4200	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe
684	wmptd32.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 3464 wrote to memory of 4200	3464	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	81
PID 4200 wrote to memory of 4248	4200	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	83
PID 4200 wrote to memory of 4248	4200	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	83
PID 4200 wrote to memory of 4248	4200	17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe	83
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 4248 wrote to memory of 684	4248	wmptd32.exe	84
PID 684 wrote to memory of 3552	684	wmptd32.exe	56
PID 684 wrote to memory of 3552	684	wmptd32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3552
- C:\Users\Admin\AppData\Local\Temp\17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:3464
- - C:\Users\Admin\AppData\Local\Temp\17753b4da6fa70b9f38fe116371836bf_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\17753b4da6fa70b9f38fe116371836bf_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:4200
  - - C:\Windows\SysWOW64\wmptd32.exe
      "C:\Windows\SysWOW64\wmptd32.exe" C:\Users\Admin\AppData\Local\Temp\17753B~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4248
    - - C:\Windows\SysWOW64\wmptd32.exe
        
        "C:\Windows\SysWOW64\wmptd32.exe" C:\Users\Admin\AppData\Local\Temp\17753B~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:684

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\wmptd32.exe

Filesize
247KB

MD5
17753b4da6fa70b9f38fe116371836bf

SHA1
6ea4cfd28d81913957b4078fd4816c4fc40fa08e

SHA256
ac83d3e73d69e840f2c48837f844d419155497ab2f55f1ab49967a8f1b891e8f

SHA512
fb7d7a8b5664c442d5ec58d2a36cd7f831aa65b5511bfaf49764c137f4d16e8c88135019e1ec438a04d9e8ed5c2d9cb2cbf51e7e4b927c36b81a0c1135fb132d

Download Submit
memory/684-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/684-52-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/684-51-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/684-50-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/684-46-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3464-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3464-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4200-7-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4200-6-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4200-48-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4200-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4200-1-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4200-2-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4248-44-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads