metasploit | 8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cf

General

Target

NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
Size

258KB
MD5

da3bf6ccc1cee7d67040d09dd4df9dc0
SHA1

b4038221a5f27007c01ac8e63dead050defe57e2
SHA256

8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cf
SHA512

a53aca59c161f26ade538995a440ddf7952e968db7a23a30517aa9a37631a7ab058a261840634b0bd6255575166d3cb32b13bf2685f02eaccd3715b2a2bb8561
SSDEEP

6144:Zgs50XbdMUZjlZZH1AWupPaWo5TZ5xp5:ys6LdMUZj7hCW8C5Tvx

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	wmpdj86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpdj86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpdj86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdj86.exe = "C:\\Windows\\SysWOW64\\wmpdj86.exe:*:Enabled:Windows Media Core"	wmpdj86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpdj86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpdj86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpdj86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdj86.exe = "C:\\Windows\\SysWOW64\\wmpdj86.exe:*:Enabled:Windows Media Core"	wmpdj86.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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe

Deletes itself 1 IoCs

pid	Process
392	wmpdj86.exe

Executes dropped EXE 2 IoCs

pid	Process
904	wmpdj86.exe
392	wmpdj86.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/224-1-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/224-2-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/224-5-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/224-6-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/224-7-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/392-43-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/392-47-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/224-49-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/392-51-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/392-52-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/392-53-0x0000000000400000-0x0000000000456000-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\Windows Media Core = "C:\\Windows\\SysWOW64\\wmpdj86.exe"	wmpdj86.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	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpdj86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpdj86.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wmpdj86.exe	wmpdj86.exe
File opened for modification	C:\Windows\SysWOW64\	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
File opened for modification	C:\Windows\SysWOW64\wmpdj86.exe	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
File created	C:\Windows\SysWOW64\wmpdj86.exe	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
File opened for modification	C:\Windows\SysWOW64\	wmpdj86.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 904 set thread context of 392	904	wmpdj86.exe	88

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	wmpdj86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpdj86.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
224	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
224	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
224	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
224	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe
392	wmpdj86.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
904	wmpdj86.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 4800 wrote to memory of 224	4800	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	82
PID 224 wrote to memory of 904	224	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	87
PID 224 wrote to memory of 904	224	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	87
PID 224 wrote to memory of 904	224	NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe	87
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 904 wrote to memory of 392	904	wmpdj86.exe	88
PID 392 wrote to memory of 3440	392	wmpdj86.exe	56
PID 392 wrote to memory of 3440	392	wmpdj86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3440
- C:\Users\Admin\AppData\Local\Temp\NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
  "C:\Users\Admin\AppData\Local\Temp\NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:4800
- - C:\Users\Admin\AppData\Local\Temp\NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.exe
    "C:\Users\Admin\AppData\Local\Temp\NoThreatDetected8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cfN.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:224
  - - C:\Windows\SysWOW64\wmpdj86.exe
      "C:\Windows\SysWOW64\wmpdj86.exe" C:\Users\Admin\AppData\Local\Temp\NOTHRE~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:904
    - - C:\Windows\SysWOW64\wmpdj86.exe
        
        "C:\Windows\SysWOW64\wmpdj86.exe" C:\Users\Admin\AppData\Local\Temp\NOTHRE~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:392

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\wmpdj86.exe

Filesize
258KB

MD5
da3bf6ccc1cee7d67040d09dd4df9dc0

SHA1
b4038221a5f27007c01ac8e63dead050defe57e2

SHA256
8c3d8916a14b4156322bb43a6e242de886e45d7ca9ff19a988d29c51ab5371cf

SHA512
a53aca59c161f26ade538995a440ddf7952e968db7a23a30517aa9a37631a7ab058a261840634b0bd6255575166d3cb32b13bf2685f02eaccd3715b2a2bb8561

Download Submit
memory/224-1-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/224-2-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/224-5-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/224-6-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/224-7-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/224-49-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/392-51-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/392-53-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/392-43-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/392-52-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/392-47-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/904-45-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4800-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4800-4-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads