metasploit | 8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036

General

Target

8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
Size

196KB
MD5

1f568162fa8d2c4be20414bfc465e08e
SHA1

495a61f383421a9f2ba00a7b1e1633a0f03fe71b
SHA256

8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036
SHA512

847e89ce97f76a6876d7767e1c15d9c146d80665484ec31949c2e8a393e281b005a8aec696d52bf9860740916912b0a046d75b8e376f196052d02aff7f7023c4
SSDEEP

3072:QX3HC4cyoRRl7KJ0gZHQnLOJMu2a9AOVZePhXogz5+W:QXXCDc0gZGLWMg9DVMpxgW

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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmphb32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmphb32.exe = "C:\\Windows\\SysWOW64\\wmphb32.exe:*:Enabled:Windows Host Network"	wmphb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmphb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmphb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmphb32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmphb32.exe = "C:\\Windows\\SysWOW64\\wmphb32.exe:*:Enabled:Windows Host Network"	wmphb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmphb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmphb32.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe

Deletes itself 1 IoCs

pid	Process
244	wmphb32.exe

Executes dropped EXE 2 IoCs

pid	Process
4344	wmphb32.exe
244	wmphb32.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 Host Network = "C:\\Windows\\SysWOW64\\wmphb32.exe"	wmphb32.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	wmphb32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmphb32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wmphb32.exe	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
File created	C:\Windows\SysWOW64\wmphb32.exe	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
File opened for modification	C:\Windows\SysWOW64\	wmphb32.exe
File opened for modification	C:\Windows\SysWOW64\	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 624 set thread context of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 4344 set thread context of 244	4344	wmphb32.exe	88

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5032-1-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5032-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5032-5-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5032-6-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5032-33-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5032-44-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/244-48-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/244-50-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/244-51-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/244-52-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/244-53-0x0000000000400000-0x0000000000451000-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	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmphb32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmphb32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5032	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
5032	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
5032	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
5032	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
244	wmphb32.exe
244	wmphb32.exe
244	wmphb32.exe
244	wmphb32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 624 wrote to memory of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 624 wrote to memory of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 624 wrote to memory of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 624 wrote to memory of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 624 wrote to memory of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 624 wrote to memory of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 624 wrote to memory of 5032	624	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	82
PID 5032 wrote to memory of 4344	5032	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	87
PID 5032 wrote to memory of 4344	5032	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	87
PID 5032 wrote to memory of 4344	5032	8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe	87
PID 4344 wrote to memory of 244	4344	wmphb32.exe	88
PID 4344 wrote to memory of 244	4344	wmphb32.exe	88
PID 4344 wrote to memory of 244	4344	wmphb32.exe	88
PID 4344 wrote to memory of 244	4344	wmphb32.exe	88
PID 4344 wrote to memory of 244	4344	wmphb32.exe	88
PID 4344 wrote to memory of 244	4344	wmphb32.exe	88
PID 4344 wrote to memory of 244	4344	wmphb32.exe	88
PID 244 wrote to memory of 3404	244	wmphb32.exe	56
PID 244 wrote to memory of 3404	244	wmphb32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3404
- C:\Users\Admin\AppData\Local\Temp\8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
  "C:\Users\Admin\AppData\Local\Temp\8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Users\Admin\AppData\Local\Temp\8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.exe
    "C:\Users\Admin\AppData\Local\Temp\8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036.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:5032
  - - C:\Windows\SysWOW64\wmphb32.exe
      "C:\Windows\SysWOW64\wmphb32.exe" C:\Users\Admin\AppData\Local\Temp\8750DF~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4344
    - - C:\Windows\SysWOW64\wmphb32.exe
        
        "C:\Windows\SysWOW64\wmphb32.exe" C:\Users\Admin\AppData\Local\Temp\8750DF~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:244

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\wmphb32.exe

Filesize
196KB

MD5
1f568162fa8d2c4be20414bfc465e08e

SHA1
495a61f383421a9f2ba00a7b1e1633a0f03fe71b

SHA256
8750df688c08e57c6684992c81f4e9d3be3a7500863c94236ac51545c7def036

SHA512
847e89ce97f76a6876d7767e1c15d9c146d80665484ec31949c2e8a393e281b005a8aec696d52bf9860740916912b0a046d75b8e376f196052d02aff7f7023c4

Download Submit
memory/244-53-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/244-52-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/244-51-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/244-50-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/244-48-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/624-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/624-3-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4344-41-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4344-49-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/5032-44-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5032-33-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5032-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5032-5-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5032-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5032-1-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads