metasploit | 702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce

General

Target

702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
Size

180KB
MD5

d6abdf9845d5948f814b72d5397446d5
SHA1

9880a216e2a36c7ada39ea1b580a5661aa2ac14a
SHA256

702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce
SHA512

783c477442e3d7869f6252bb0201bdc54c72ea8deb28e169f20e05aa20c8306118dd697d7737c8aaa5e32abd9ccfc2311c7f49e64011b507881231c2ff3b2f51
SSDEEP

3072:iO0j0EfPM5qpeCVV34Ay4rlLSJ1MVoCMnxZUfUKIAtC4HS13BJQWwsS+ArxoKTIH:n0j0EfP+qgSV3ty5JGMxmfUK5gOWwsSk

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 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

wmpkn32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkn32.exe = "C:\\Windows\\SysWOW64\\wmpkn32.exe:*:Enabled:Windows Media Services"	wmpkn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkn32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkn32.exe = "C:\\Windows\\SysWOW64\\wmpkn32.exe:*:Enabled:Windows Media Services"	wmpkn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkn32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpkn32.exewmpkn32.exe

pid process

1204 wmpkn32.exe
2020 wmpkn32.exe

pid	process
1204	wmpkn32.exe
2020	wmpkn32.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/908-58-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/908-57-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/908-55-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/908-62-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/908-63-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/908-64-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/908-65-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/908-82-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2020-83-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2020-84-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

wmpkn32.exe

pid process

2020 wmpkn32.exe

pid	process
2020	wmpkn32.exe

Loads dropped DLL 2 IoCs

Processes:

702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe

pid	process
908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpkn32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wmpkn32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Services = "C:\\Windows\\SysWOW64\\wmpkn32.exe"	wmpkn32.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

Processes:

wmpkn32.exe702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpkn32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkn32.exe

Drops file in System32 directory 4 IoCs

Processes:

702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exewmpkn32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
File opened for modification	C:\Windows\SysWOW64\wmpkn32.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
File created	C:\Windows\SysWOW64\wmpkn32.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkn32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exewmpkn32.exe

description	pid	process	target process
PID 868 set thread context of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 1204 set thread context of 2020	1204	wmpkn32.exe	wmpkn32.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exewmpkn32.exe

pid	process
908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
2020	wmpkn32.exe
2020	wmpkn32.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exewmpkn32.exewmpkn32.exe

description	pid	process	target process
PID 868 wrote to memory of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 868 wrote to memory of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 868 wrote to memory of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 868 wrote to memory of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 868 wrote to memory of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 868 wrote to memory of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 868 wrote to memory of 908	868	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
PID 908 wrote to memory of 1204	908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	wmpkn32.exe
PID 908 wrote to memory of 1204	908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	wmpkn32.exe
PID 908 wrote to memory of 1204	908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	wmpkn32.exe
PID 908 wrote to memory of 1204	908	702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe	wmpkn32.exe
PID 1204 wrote to memory of 2020	1204	wmpkn32.exe	wmpkn32.exe
PID 1204 wrote to memory of 2020	1204	wmpkn32.exe	wmpkn32.exe
PID 1204 wrote to memory of 2020	1204	wmpkn32.exe	wmpkn32.exe
PID 1204 wrote to memory of 2020	1204	wmpkn32.exe	wmpkn32.exe
PID 1204 wrote to memory of 2020	1204	wmpkn32.exe	wmpkn32.exe
PID 1204 wrote to memory of 2020	1204	wmpkn32.exe	wmpkn32.exe
PID 1204 wrote to memory of 2020	1204	wmpkn32.exe	wmpkn32.exe
PID 2020 wrote to memory of 1300	2020	wmpkn32.exe	Explorer.EXE
PID 2020 wrote to memory of 1300	2020	wmpkn32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1300

C:\Users\Admin\AppData\Local\Temp\702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
"C:\Users\Admin\AppData\Local\Temp\702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:868

C:\Users\Admin\AppData\Local\Temp\702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe
"C:\Users\Admin\AppData\Local\Temp\702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce.exe"
3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\SysWOW64\wmpkn32.exe
"C:\Windows\SysWOW64\wmpkn32.exe" C:\Users\Admin\AppData\Local\Temp\702639~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1204

C:\Windows\SysWOW64\wmpkn32.exe
"C:\Windows\SysWOW64\wmpkn32.exe" C:\Users\Admin\AppData\Local\Temp\702639~1.EXE
5⤵
- Modifies firewall policy service
- Executes dropped EXE
- Deletes itself
- 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:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\wmpkn32.exe

Filesize
180KB

MD5
d6abdf9845d5948f814b72d5397446d5

SHA1
9880a216e2a36c7ada39ea1b580a5661aa2ac14a

SHA256
702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce

SHA512
783c477442e3d7869f6252bb0201bdc54c72ea8deb28e169f20e05aa20c8306118dd697d7737c8aaa5e32abd9ccfc2311c7f49e64011b507881231c2ff3b2f51

Download Submit
C:\Windows\SysWOW64\wmpkn32.exe

Filesize
180KB

MD5
d6abdf9845d5948f814b72d5397446d5

SHA1
9880a216e2a36c7ada39ea1b580a5661aa2ac14a

SHA256
702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce

SHA512
783c477442e3d7869f6252bb0201bdc54c72ea8deb28e169f20e05aa20c8306118dd697d7737c8aaa5e32abd9ccfc2311c7f49e64011b507881231c2ff3b2f51

Download Submit
C:\Windows\SysWOW64\wmpkn32.exe

Filesize
180KB

MD5
d6abdf9845d5948f814b72d5397446d5

SHA1
9880a216e2a36c7ada39ea1b580a5661aa2ac14a

SHA256
702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce

SHA512
783c477442e3d7869f6252bb0201bdc54c72ea8deb28e169f20e05aa20c8306118dd697d7737c8aaa5e32abd9ccfc2311c7f49e64011b507881231c2ff3b2f51

Download Submit
\Windows\SysWOW64\wmpkn32.exe

Filesize
180KB

MD5
d6abdf9845d5948f814b72d5397446d5

SHA1
9880a216e2a36c7ada39ea1b580a5661aa2ac14a

SHA256
702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce

SHA512
783c477442e3d7869f6252bb0201bdc54c72ea8deb28e169f20e05aa20c8306118dd697d7737c8aaa5e32abd9ccfc2311c7f49e64011b507881231c2ff3b2f51

Download Submit
\Windows\SysWOW64\wmpkn32.exe

Filesize
180KB

MD5
d6abdf9845d5948f814b72d5397446d5

SHA1
9880a216e2a36c7ada39ea1b580a5661aa2ac14a

SHA256
702639c970cd22d7251b63cef004509c9fba742419c9ff8f818b5d47ded8f9ce

SHA512
783c477442e3d7869f6252bb0201bdc54c72ea8deb28e169f20e05aa20c8306118dd697d7737c8aaa5e32abd9ccfc2311c7f49e64011b507881231c2ff3b2f51

Download Submit
memory/908-61-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/908-59-0x000000000044EA70-mapping.dmp

Download
memory/908-63-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-64-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-65-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-54-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-55-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-62-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-57-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-58-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/908-82-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1204-68-0x0000000000000000-mapping.dmp

Download
memory/1300-85-0x0000000002650000-0x000000000266E000-memory.dmp

Filesize
120KB

Download
memory/2020-76-0x000000000044EA70-mapping.dmp

Download
memory/2020-83-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2020-84-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads