metasploit | e9f192ccbd3352aeb42ca8ae9019b9d59cf3c1485e924cc83461d86401cd3992

General

Target

2167e95d587a2d10103b5fd36709bb33.exe
Size

133KB
MD5

2167e95d587a2d10103b5fd36709bb33
SHA1

204e18bc9972960d72c59156c3a5a81be5472dee
SHA256

e9f192ccbd3352aeb42ca8ae9019b9d59cf3c1485e924cc83461d86401cd3992
SHA512

7c1688d4d76559dd92bc810c90e1c28d3e95249858cbea9faa2b95c9405a31146a34d06b638b9246f86d65d10ad1fdc51bd9462463b8858d9c55a9dae54dd215
SSDEEP

3072:swHmlbVdG05cpqr6SaSxfsxmzQ4NjZVQcMj:LoG0m2dWxGNtm/j

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 2 TTPs 8 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpkh32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkh32.exe = "C:\\Windows\\SysWOW64\\wmpkh32.exe:*:Enabled:WinMedia Server"	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpkh32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkh32.exe = "C:\\Windows\\SysWOW64\\wmpkh32.exe:*:Enabled:WinMedia Server"	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpkh32.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2167e95d587a2d10103b5fd36709bb33.exe

Deletes itself 1 IoCs

pid	Process
2992	wmpkh32.exe

Executes dropped EXE 2 IoCs

pid	Process
2512	wmpkh32.exe
2992	wmpkh32.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4548-1-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4548-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4548-6-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4548-5-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4548-39-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4548-54-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/2992-57-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/2992-58-0x0000000000400000-0x0000000000451000-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\WinMedia Server = "C:\\Windows\\SysWOW64\\wmpkh32.exe"	wmpkh32.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	2167e95d587a2d10103b5fd36709bb33.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	2167e95d587a2d10103b5fd36709bb33.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkh32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkh32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wmpkh32.exe	2167e95d587a2d10103b5fd36709bb33.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkh32.exe
File opened for modification	C:\Windows\SysWOW64\	2167e95d587a2d10103b5fd36709bb33.exe
File opened for modification	C:\Windows\SysWOW64\wmpkh32.exe	2167e95d587a2d10103b5fd36709bb33.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2140 set thread context of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 2512 set thread context of 2992	2512	wmpkh32.exe	98

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\	2167e95d587a2d10103b5fd36709bb33.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4548	2167e95d587a2d10103b5fd36709bb33.exe
4548	2167e95d587a2d10103b5fd36709bb33.exe
4548	2167e95d587a2d10103b5fd36709bb33.exe
4548	2167e95d587a2d10103b5fd36709bb33.exe
2992	wmpkh32.exe
2992	wmpkh32.exe
2992	wmpkh32.exe
2992	wmpkh32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 2140 wrote to memory of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 2140 wrote to memory of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 2140 wrote to memory of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 2140 wrote to memory of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 2140 wrote to memory of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 2140 wrote to memory of 4548	2140	2167e95d587a2d10103b5fd36709bb33.exe	88
PID 4548 wrote to memory of 2512	4548	2167e95d587a2d10103b5fd36709bb33.exe	97
PID 4548 wrote to memory of 2512	4548	2167e95d587a2d10103b5fd36709bb33.exe	97
PID 4548 wrote to memory of 2512	4548	2167e95d587a2d10103b5fd36709bb33.exe	97
PID 2512 wrote to memory of 2992	2512	wmpkh32.exe	98
PID 2512 wrote to memory of 2992	2512	wmpkh32.exe	98
PID 2512 wrote to memory of 2992	2512	wmpkh32.exe	98
PID 2512 wrote to memory of 2992	2512	wmpkh32.exe	98
PID 2512 wrote to memory of 2992	2512	wmpkh32.exe	98
PID 2512 wrote to memory of 2992	2512	wmpkh32.exe	98
PID 2512 wrote to memory of 2992	2512	wmpkh32.exe	98
PID 2992 wrote to memory of 3544	2992	wmpkh32.exe	59
PID 2992 wrote to memory of 3544	2992	wmpkh32.exe	59

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3544
- C:\Users\Admin\AppData\Local\Temp\2167e95d587a2d10103b5fd36709bb33.exe
  "C:\Users\Admin\AppData\Local\Temp\2167e95d587a2d10103b5fd36709bb33.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Users\Admin\AppData\Local\Temp\2167e95d587a2d10103b5fd36709bb33.exe
    "C:\Users\Admin\AppData\Local\Temp\2167e95d587a2d10103b5fd36709bb33.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:4548
  - - C:\Windows\SysWOW64\wmpkh32.exe
      "C:\Windows\SysWOW64\wmpkh32.exe" C:\Users\Admin\AppData\Local\Temp\2167E9~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:2512
    - - C:\Windows\SysWOW64\wmpkh32.exe
        
        "C:\Windows\SysWOW64\wmpkh32.exe" C:\Users\Admin\AppData\Local\Temp\2167E9~1.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:2992

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

Modify Registry

2

T1112

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\wmpkh32.exe

Filesize
133KB

MD5
2167e95d587a2d10103b5fd36709bb33

SHA1
204e18bc9972960d72c59156c3a5a81be5472dee

SHA256
e9f192ccbd3352aeb42ca8ae9019b9d59cf3c1485e924cc83461d86401cd3992

SHA512
7c1688d4d76559dd92bc810c90e1c28d3e95249858cbea9faa2b95c9405a31146a34d06b638b9246f86d65d10ad1fdc51bd9462463b8858d9c55a9dae54dd215

Download Submit
memory/2140-0-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2140-3-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2512-50-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2992-57-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2992-58-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4548-1-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4548-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4548-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4548-5-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4548-39-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4548-54-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads