metasploit | 3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56

General

Target

3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
Size

261KB
MD5

e855189df35fa64d5760036d14793f90
SHA1

5eda5d7a26280b684cd4514c554b646893eb8d47
SHA256

3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56
SHA512

aa53c16ee21fa2aacf7daacc57d8fa5f702c6e033cc777a6692727a84f1b5b2225c522e7cda30355d65b5d46d3030db6b76b833a49f9246c2422146895869629
SSDEEP

6144:CbsUESHsRQKfwZgXhsoTDiKf5zHEXL67ubpXd6F:C4UESMRQuYUHi45TE767Yd

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\List	wmpdt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpdt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpdt86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdt86.exe = "C:\\Windows\\SysWOW64\\wmpdt86.exe:*:Enabled:Windows Data Recovery"	wmpdt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpdt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpdt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpdt86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdt86.exe = "C:\\Windows\\SysWOW64\\wmpdt86.exe:*:Enabled:Windows Data Recovery"	wmpdt86.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	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe

Deletes itself 1 IoCs

pid	Process
744	wmpdt86.exe

Executes dropped EXE 2 IoCs

pid	Process
3592	wmpdt86.exe
744	wmpdt86.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 Recovery = "C:\\Windows\\SysWOW64\\wmpdt86.exe"	wmpdt86.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	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpdt86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpdt86.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	wmpdt86.exe
File opened for modification	C:\Windows\SysWOW64\wmpdt86.exe	wmpdt86.exe
File opened for modification	C:\Windows\SysWOW64\	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
File opened for modification	C:\Windows\SysWOW64\wmpdt86.exe	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
File created	C:\Windows\SysWOW64\wmpdt86.exe	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4052 set thread context of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 3592 set thread context of 744	3592	wmpdt86.exe	84

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4724-1-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/4724-4-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/4724-5-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/4724-6-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/744-46-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/4724-47-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/744-49-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/744-50-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/744-51-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/744-58-0x0000000000400000-0x0000000000456000-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	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpdt86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpdt86.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
4724	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
4724	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
4724	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
4724	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe
744	wmpdt86.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4052 wrote to memory of 4724	4052	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	82
PID 4724 wrote to memory of 3592	4724	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	83
PID 4724 wrote to memory of 3592	4724	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	83
PID 4724 wrote to memory of 3592	4724	3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe	83
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 3592 wrote to memory of 744	3592	wmpdt86.exe	84
PID 744 wrote to memory of 3472	744	wmpdt86.exe	56
PID 744 wrote to memory of 3472	744	wmpdt86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3472
- C:\Users\Admin\AppData\Local\Temp\3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
  "C:\Users\Admin\AppData\Local\Temp\3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4052
- - C:\Users\Admin\AppData\Local\Temp\3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.exe
    "C:\Users\Admin\AppData\Local\Temp\3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56N.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:4724
  - - C:\Windows\SysWOW64\wmpdt86.exe
      "C:\Windows\SysWOW64\wmpdt86.exe" C:\Users\Admin\AppData\Local\Temp\3B5CF3~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3592
    - - C:\Windows\SysWOW64\wmpdt86.exe
        
        "C:\Windows\SysWOW64\wmpdt86.exe" C:\Users\Admin\AppData\Local\Temp\3B5CF3~1.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:744

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\wmpdt86.exe

Filesize
261KB

MD5
e855189df35fa64d5760036d14793f90

SHA1
5eda5d7a26280b684cd4514c554b646893eb8d47

SHA256
3b5cf35562c1092214688cca98fa273d3ded5b3d7eba5855a935ffd0b8e9db56

SHA512
aa53c16ee21fa2aacf7daacc57d8fa5f702c6e033cc777a6692727a84f1b5b2225c522e7cda30355d65b5d46d3030db6b76b833a49f9246c2422146895869629

Download Submit
memory/744-49-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/744-58-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/744-51-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/744-50-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/744-46-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/3592-45-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4052-3-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4052-0-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4724-4-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4724-47-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4724-6-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4724-5-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4724-1-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads