metasploit | e1575a492e7ef326e9f1a34b4f95802769dad23923a57df83cac1bfc9832a9d3

General

Target

IMG29581-JPEG.scr
Size

244KB
MD5

55664a1ffcc246c6f1036375d2685403
SHA1

8c6ec90f92b322db5d190693cee03919fdf9d87c
SHA256

47c559452326e82e0c44a14c981e82174e35f74a823efd703b8b9968f9dff935
SHA512

60a43318392c1deb70277ac3390c0816e61fa6e1c9ac5ecae2e1ea9a17fba4f75f2ef412ef157706fd39068d7f029a6304cdde919c6e5f292f93ed328e2531c5
SSDEEP

3072:y4y3BlUCcNYn3FVYvHy2DIZTJErtgA6ujDLX5ynNfW9OEYqD71:ylACtn3YXDI1eXjaX+7

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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptl64.exe = "C:\\Windows\\SysWOW64\\wmptl64.exe:*:Enabled:Windows Media Telnet"	wmptl64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmptl64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmptl64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmptl64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptl64.exe = "C:\\Windows\\SysWOW64\\wmptl64.exe:*:Enabled:Windows Media Telnet"	wmptl64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmptl64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmptl64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmptl64.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	IMG29581-JPEG.scr

Deletes itself 1 IoCs

pid	Process
2244	wmptl64.exe

Executes dropped EXE 2 IoCs

pid	Process
4980	wmptl64.exe
2244	wmptl64.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 Media Telnet = "C:\\Windows\\SysWOW64\\wmptl64.exe"	wmptl64.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	IMG29581-JPEG.scr
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	IMG29581-JPEG.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmptl64.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmptl64.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	IMG29581-JPEG.scr
File opened for modification	C:\Windows\SysWOW64\wmptl64.exe	IMG29581-JPEG.scr
File created	C:\Windows\SysWOW64\wmptl64.exe	IMG29581-JPEG.scr
File opened for modification	C:\Windows\SysWOW64\	wmptl64.exe
File opened for modification	C:\Windows\SysWOW64\wmptl64.exe	wmptl64.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1624 set thread context of 3312	1624	IMG29581-JPEG.scr	84
PID 4980 set thread context of 2244	4980	wmptl64.exe	98

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3312-0-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3312-2-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3312-4-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3312-3-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3312-38-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2244-45-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2244-46-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2244-47-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2244-51-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2244-58-0x0000000000400000-0x0000000000464000-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	IMG29581-JPEG.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMG29581-JPEG.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmptl64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmptl64.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	IMG29581-JPEG.scr

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3312	IMG29581-JPEG.scr
3312	IMG29581-JPEG.scr
3312	IMG29581-JPEG.scr
3312	IMG29581-JPEG.scr
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe
2244	wmptl64.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 1624 wrote to memory of 3312	1624	IMG29581-JPEG.scr	84
PID 3312 wrote to memory of 4980	3312	IMG29581-JPEG.scr	87
PID 3312 wrote to memory of 4980	3312	IMG29581-JPEG.scr	87
PID 3312 wrote to memory of 4980	3312	IMG29581-JPEG.scr	87
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 4980 wrote to memory of 2244	4980	wmptl64.exe	98
PID 2244 wrote to memory of 3444	2244	wmptl64.exe	56
PID 2244 wrote to memory of 3444	2244	wmptl64.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3444
- C:\Users\Admin\AppData\Local\Temp\IMG29581-JPEG.scr
  "C:\Users\Admin\AppData\Local\Temp\IMG29581-JPEG.scr" /S
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1624
- - C:\Users\Admin\AppData\Local\Temp\IMG29581-JPEG.scr
    "C:\Users\Admin\AppData\Local\Temp\IMG29581-JPEG.scr" /S
    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:3312
  - - C:\Windows\SysWOW64\wmptl64.exe
      "C:\Windows\SysWOW64\wmptl64.exe" C:\Users\Admin\AppData\Local\Temp\IMG295~1.SCR
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4980
    - - C:\Windows\SysWOW64\wmptl64.exe
        
        "C:\Windows\SysWOW64\wmptl64.exe" C:\Users\Admin\AppData\Local\Temp\IMG295~1.SCR
        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:2244

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\wmptl64.exe

Filesize
244KB

MD5
55664a1ffcc246c6f1036375d2685403

SHA1
8c6ec90f92b322db5d190693cee03919fdf9d87c

SHA256
47c559452326e82e0c44a14c981e82174e35f74a823efd703b8b9968f9dff935

SHA512
60a43318392c1deb70277ac3390c0816e61fa6e1c9ac5ecae2e1ea9a17fba4f75f2ef412ef157706fd39068d7f029a6304cdde919c6e5f292f93ed328e2531c5

Download Submit
memory/2244-45-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2244-46-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2244-47-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2244-51-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2244-58-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3312-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3312-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3312-4-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3312-3-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3312-38-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads