metasploit | cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888

General

Target

cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
Size

259KB
MD5

dc5960e94932cddb25a0118729234ec4
SHA1

2615246d4d3832e0a1ad2bd8825300ae8153a14f
SHA256

cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888
SHA512

604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33
SSDEEP

3072:ybfupze+Lo2RuB/1fYlQHqzx806EhafJtRXpWOvB66EMxZkbw8eFLZBbsUYVayOl:4Oe+RR+NFKzDheL8gxqbbeFT

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

Modify Existing Service

T1031

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmplv64.exe = "C:\\Windows\\SysWOW64\\wmplv64.exe:*:Enabled:Windows Media Launch"	wmplv64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmplv64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmplv64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmplv64.exe = "C:\\Windows\\SysWOW64\\wmplv64.exe:*:Enabled:Windows Media Launch"	wmplv64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmplv64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmplv64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmplv64.exe

Executes dropped EXE 2 IoCs

pid	Process
3136	wmplv64.exe
2168	wmplv64.exe

Sets file execution options in registry 2 TTPs 18 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\epplauncher.exe	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avast.setup\Debugger = "CMD /C>null"	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastSvc.exe\Debugger = "CMD /C>null"	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe\Debugger = "CMD /C>null"	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\epplauncher.exe\Debugger = "CMD /C>null"	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastUI.exe	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe\Debugger = "CMD /C>null"	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe\Debugger = "CMD /C>null"	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastUI.exe\Debugger = "CMD /C>null"	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe\Debugger = "CMD /C>null"	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe\Debugger = "CMD /C>null"	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avast.setup	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastSvc.exe	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe	wmplv64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe	wmplv64.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3328-133-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3328-136-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3328-137-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3328-138-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3328-139-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/3328-149-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2168-151-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2168-152-0x0000000000400000-0x0000000000464000-memory.dmp	upx

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wmplv64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Launch = "C:\\Windows\\SysWOW64\\wmplv64.exe"	wmplv64.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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmplv64.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmplv64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
File opened for modification	C:\Windows\SysWOW64\wmplv64.exe	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
File created	C:\Windows\SysWOW64\wmplv64.exe	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
File opened for modification	C:\Windows\SysWOW64\	wmplv64.exe
File opened for modification	C:\Windows\SysWOW64\wmplv64.exe	wmplv64.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4764 set thread context of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 3136 set thread context of 2168	3136	wmplv64.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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\	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3328	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
3328	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
3328	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
3328	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe
2168	wmplv64.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 4764 wrote to memory of 3328	4764	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	79
PID 3328 wrote to memory of 3136	3328	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	82
PID 3328 wrote to memory of 3136	3328	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	82
PID 3328 wrote to memory of 3136	3328	cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe	82
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 3136 wrote to memory of 2168	3136	wmplv64.exe	83
PID 2168 wrote to memory of 2484	2168	wmplv64.exe	50
PID 2168 wrote to memory of 2484	2168	wmplv64.exe	50

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2484
- C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
  "C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4764
- - C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
    "C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.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:3328
  - - C:\Windows\SysWOW64\wmplv64.exe
      "C:\Windows\SysWOW64\wmplv64.exe" C:\Users\Admin\AppData\Local\Temp\CAC7AA~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:3136
    - - C:\Windows\SysWOW64\wmplv64.exe
        
        "C:\Windows\SysWOW64\wmplv64.exe" C:\Users\Admin\AppData\Local\Temp\CAC7AA~1.EXE
        5⤵
        Modifies firewall policy service
        Executes dropped EXE
        Sets file execution options in registry
        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:2168

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\wmplv64.exe

Filesize
259KB

MD5
dc5960e94932cddb25a0118729234ec4

SHA1
2615246d4d3832e0a1ad2bd8825300ae8153a14f

SHA256
cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888

SHA512
604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33

Download Submit
C:\Windows\SysWOW64\wmplv64.exe

Filesize
259KB

MD5
dc5960e94932cddb25a0118729234ec4

SHA1
2615246d4d3832e0a1ad2bd8825300ae8153a14f

SHA256
cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888

SHA512
604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33

Download Submit
C:\Windows\SysWOW64\wmplv64.exe

Filesize
259KB

MD5
dc5960e94932cddb25a0118729234ec4

SHA1
2615246d4d3832e0a1ad2bd8825300ae8153a14f

SHA256
cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888

SHA512
604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33

Download Submit
memory/2168-152-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2168-151-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3136-147-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3328-139-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3328-138-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3328-137-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3328-136-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3328-149-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/3328-133-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/4764-134-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads