metasploit | da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2

General

Target

da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
Size

141KB
MD5

384ad83d5c43971ec1ba74f48304207d
SHA1

e48bd6f9713a248fb5699a7f831918dd3c51a9c3
SHA256

da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2
SHA512

2162d0243ff92b85eb20f1af9aa9390fb00ec9908da5f08e5df4692a5b0899d249f257e7e67afbc1302d942e7e4c24e1b333f8e4dd221498921541e7e7c6d9af
SSDEEP

1536:Tz+yr3rzQnyP6y5o0clYvHFY0Iv8glIc9krYqqBsfiutdw+lIyVi0DM1PjXKCrqb:5Q/y5Cmf2zv+c6DqQzIPkw5t5O2FhlO

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:

wmpbl32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpbl32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbl32.exe = "C:\\Windows\\SysWOW64\\wmpbl32.exe:*:Enabled:WinMedia tServer"	wmpbl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpbl32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbl32.exe = "C:\\Windows\\SysWOW64\\wmpbl32.exe:*:Enabled:WinMedia tServer"	wmpbl32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpbl32.exewmpbl32.exe

pid process

1308 wmpbl32.exe
1872 wmpbl32.exe

pid	process
1308	wmpbl32.exe
1872	wmpbl32.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2016-56-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2016-58-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2016-59-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2016-62-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2016-63-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2016-64-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2016-65-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/1872-78-0x0000000000400000-0x0000000000401000-memory.dmp	upx
behavioral1/memory/2016-79-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/1872-80-0x0000000000400000-0x0000000000427000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

wmpbl32.exe

pid process

1872 wmpbl32.exe

pid	process
1872	wmpbl32.exe

Loads dropped DLL 2 IoCs

Processes:

da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe

pid	process
2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpbl32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia tServer = "C:\\Windows\\SysWOW64\\wmpbl32.exe"	wmpbl32.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wmpbl32.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:

wmpbl32.exeda670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpbl32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpbl32.exe

Drops file in System32 directory 4 IoCs

Processes:

da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exewmpbl32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
File opened for modification	C:\Windows\SysWOW64\wmpbl32.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
File created	C:\Windows\SysWOW64\wmpbl32.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
File opened for modification	C:\Windows\SysWOW64\	wmpbl32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exewmpbl32.exe

description	pid	process	target process
PID 1672 set thread context of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 1308 set thread context of 1872	1308	wmpbl32.exe	wmpbl32.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:

da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exewmpbl32.exe

pid	process
2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
1872	wmpbl32.exe
1872	wmpbl32.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

wmpbl32.exe

pid process

1308 wmpbl32.exe

pid	process
1308	wmpbl32.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exeda670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exewmpbl32.exewmpbl32.exe

description	pid	process	target process
PID 1672 wrote to memory of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 1672 wrote to memory of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 1672 wrote to memory of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 1672 wrote to memory of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 1672 wrote to memory of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 1672 wrote to memory of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 1672 wrote to memory of 2016	1672	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
PID 2016 wrote to memory of 1308	2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	wmpbl32.exe
PID 2016 wrote to memory of 1308	2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	wmpbl32.exe
PID 2016 wrote to memory of 1308	2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	wmpbl32.exe
PID 2016 wrote to memory of 1308	2016	da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe	wmpbl32.exe
PID 1308 wrote to memory of 1872	1308	wmpbl32.exe	wmpbl32.exe
PID 1308 wrote to memory of 1872	1308	wmpbl32.exe	wmpbl32.exe
PID 1308 wrote to memory of 1872	1308	wmpbl32.exe	wmpbl32.exe
PID 1308 wrote to memory of 1872	1308	wmpbl32.exe	wmpbl32.exe
PID 1308 wrote to memory of 1872	1308	wmpbl32.exe	wmpbl32.exe
PID 1308 wrote to memory of 1872	1308	wmpbl32.exe	wmpbl32.exe
PID 1308 wrote to memory of 1872	1308	wmpbl32.exe	wmpbl32.exe
PID 1872 wrote to memory of 1268	1872	wmpbl32.exe	Explorer.EXE
PID 1872 wrote to memory of 1268	1872	wmpbl32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1268

C:\Users\Admin\AppData\Local\Temp\da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
"C:\Users\Admin\AppData\Local\Temp\da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1672

C:\Users\Admin\AppData\Local\Temp\da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe
"C:\Users\Admin\AppData\Local\Temp\da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2.exe"
3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\wmpbl32.exe
"C:\Windows\SysWOW64\wmpbl32.exe" C:\Users\Admin\AppData\Local\Temp\DA670A~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1308

C:\Windows\SysWOW64\wmpbl32.exe
"C:\Windows\SysWOW64\wmpbl32.exe" C:\Users\Admin\AppData\Local\Temp\DA670A~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:1872

Network

MITRE ATT&CK Matrix ATT&CK 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

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\wmpbl32.exe
Filesize
141KB

MD5
384ad83d5c43971ec1ba74f48304207d

SHA1
e48bd6f9713a248fb5699a7f831918dd3c51a9c3

SHA256
da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2

SHA512
2162d0243ff92b85eb20f1af9aa9390fb00ec9908da5f08e5df4692a5b0899d249f257e7e67afbc1302d942e7e4c24e1b333f8e4dd221498921541e7e7c6d9af

Download Submit
C:\Windows\SysWOW64\wmpbl32.exe
Filesize
141KB

MD5
384ad83d5c43971ec1ba74f48304207d

SHA1
e48bd6f9713a248fb5699a7f831918dd3c51a9c3

SHA256
da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2

SHA512
2162d0243ff92b85eb20f1af9aa9390fb00ec9908da5f08e5df4692a5b0899d249f257e7e67afbc1302d942e7e4c24e1b333f8e4dd221498921541e7e7c6d9af

Download Submit
C:\Windows\SysWOW64\wmpbl32.exe
Filesize
141KB

MD5
384ad83d5c43971ec1ba74f48304207d

SHA1
e48bd6f9713a248fb5699a7f831918dd3c51a9c3

SHA256
da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2

SHA512
2162d0243ff92b85eb20f1af9aa9390fb00ec9908da5f08e5df4692a5b0899d249f257e7e67afbc1302d942e7e4c24e1b333f8e4dd221498921541e7e7c6d9af

Download Submit
\Windows\SysWOW64\wmpbl32.exe
Filesize
141KB

MD5
384ad83d5c43971ec1ba74f48304207d

SHA1
e48bd6f9713a248fb5699a7f831918dd3c51a9c3

SHA256
da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2

SHA512
2162d0243ff92b85eb20f1af9aa9390fb00ec9908da5f08e5df4692a5b0899d249f257e7e67afbc1302d942e7e4c24e1b333f8e4dd221498921541e7e7c6d9af

Download Submit
\Windows\SysWOW64\wmpbl32.exe
Filesize
141KB

MD5
384ad83d5c43971ec1ba74f48304207d

SHA1
e48bd6f9713a248fb5699a7f831918dd3c51a9c3

SHA256
da670a8e51c560b28ad092ce7241c1bc5101d146cf62402515cc8b4fa82867e2

SHA512
2162d0243ff92b85eb20f1af9aa9390fb00ec9908da5f08e5df4692a5b0899d249f257e7e67afbc1302d942e7e4c24e1b333f8e4dd221498921541e7e7c6d9af

Download Submit
memory/1268-81-0x00000000029C0000-0x00000000029DE000-memory.dmp

Filesize
120KB

Download
memory/1308-68-0x0000000000000000-mapping.dmp

Download
memory/1872-75-0x000000000044B000-0x000000000044C000-memory.dmp

Filesize
4KB

Download
memory/1872-71-0x0000000000000000-mapping.dmp

Download
memory/1872-80-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1872-78-0x0000000000400000-0x0000000000401000-memory.dmp

Filesize
4KB

Download
memory/1872-77-0x000000000044B000-0x000000000044C000-memory.dmp

Filesize
4KB

Download
memory/1872-74-0x0000000000432000-0x000000000044AA00-memory.dmp

Filesize
98KB

Download
memory/2016-61-0x0000000075201000-0x0000000075203000-memory.dmp

Filesize
8KB

Download
memory/2016-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-56-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-55-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-79-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2016-54-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads