metasploit | 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

General

Target

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
Size

253KB
MD5

d72d29e17d55a0f5327ba3b310111f4c
SHA1

b35f60396d2d01c0a1148601143acc1c916668b9
SHA256

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524
SHA512

49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3
SSDEEP

6144:7qXm9VZHAHjWm7LABGIwHeM8ce8dqTv7uNAab6xHUN:W2vZHADWVBGISercr0vCAauxHE

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

Processes:

wmpbd32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpbd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpbd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpbd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbd32.exe = "C:\\Windows\\SysWOW64\\wmpbd32.exe:*:Enabled:Windows Media Config"	wmpbd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpbd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpbd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpbd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbd32.exe = "C:\\Windows\\SysWOW64\\wmpbd32.exe:*:Enabled:Windows Media Config"	wmpbd32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpbd32.exewmpbd32.exe

pid process

792 wmpbd32.exe
2736 wmpbd32.exe

pid	process
792	wmpbd32.exe
2736	wmpbd32.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3576-133-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3576-135-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3576-136-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3576-137-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral2/memory/3576-147-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral2/memory/2736-148-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2736-149-0x0000000000400000-0x000000000044C000-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

Processes:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpbd32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wmpbd32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Config = "C:\\Windows\\SysWOW64\\wmpbd32.exe"	wmpbd32.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:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exewmpbd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpbd32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpbd32.exe

Drops file in System32 directory 4 IoCs

Processes:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exewmpbd32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\wmpbd32.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
File created	C:\Windows\SysWOW64\wmpbd32.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
File opened for modification	C:\Windows\SysWOW64\	wmpbd32.exe
File opened for modification	C:\Windows\SysWOW64\	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exewmpbd32.exe

description	pid	process	target process
PID 4700 set thread context of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 792 set thread context of 2736	792	wmpbd32.exe	wmpbd32.exe

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

Processes:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exewmpbd32.exe

pid	process
3576	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
3576	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
3576	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
3576	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
2736	wmpbd32.exe
2736	wmpbd32.exe
2736	wmpbd32.exe
2736	wmpbd32.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

pid process

4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

pid	process
4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exewmpbd32.exewmpbd32.exe

description	pid	process	target process
PID 4700 wrote to memory of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 4700 wrote to memory of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 4700 wrote to memory of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 4700 wrote to memory of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 4700 wrote to memory of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 4700 wrote to memory of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 4700 wrote to memory of 3576	4700	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
PID 3576 wrote to memory of 792	3576	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	wmpbd32.exe
PID 3576 wrote to memory of 792	3576	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	wmpbd32.exe
PID 3576 wrote to memory of 792	3576	6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe	wmpbd32.exe
PID 792 wrote to memory of 2736	792	wmpbd32.exe	wmpbd32.exe
PID 792 wrote to memory of 2736	792	wmpbd32.exe	wmpbd32.exe
PID 792 wrote to memory of 2736	792	wmpbd32.exe	wmpbd32.exe
PID 792 wrote to memory of 2736	792	wmpbd32.exe	wmpbd32.exe
PID 792 wrote to memory of 2736	792	wmpbd32.exe	wmpbd32.exe
PID 792 wrote to memory of 2736	792	wmpbd32.exe	wmpbd32.exe
PID 792 wrote to memory of 2736	792	wmpbd32.exe	wmpbd32.exe
PID 2736 wrote to memory of 2484	2736	wmpbd32.exe	Explorer.EXE
PID 2736 wrote to memory of 2484	2736	wmpbd32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2484

C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
"C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4700

C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
"C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.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:3576

C:\Windows\SysWOW64\wmpbd32.exe
"C:\Windows\SysWOW64\wmpbd32.exe" C:\Users\Admin\AppData\Local\Temp\6A1435~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:792

C:\Windows\SysWOW64\wmpbd32.exe
"C:\Windows\SysWOW64\wmpbd32.exe" C:\Users\Admin\AppData\Local\Temp\6A1435~1.EXE
5⤵
- Modifies firewall policy service
- Executes dropped EXE
- 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:2736

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

2

T1012

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\wmpbd32.exe
Filesize
253KB

MD5
d72d29e17d55a0f5327ba3b310111f4c

SHA1
b35f60396d2d01c0a1148601143acc1c916668b9

SHA256
6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

SHA512
49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

Download Submit
C:\Windows\SysWOW64\wmpbd32.exe
Filesize
253KB

MD5
d72d29e17d55a0f5327ba3b310111f4c

SHA1
b35f60396d2d01c0a1148601143acc1c916668b9

SHA256
6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

SHA512
49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

Download Submit
C:\Windows\SysWOW64\wmpbd32.exe
Filesize
253KB

MD5
d72d29e17d55a0f5327ba3b310111f4c

SHA1
b35f60396d2d01c0a1148601143acc1c916668b9

SHA256
6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524

SHA512
49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3

Download Submit
memory/792-138-0x0000000000000000-mapping.dmp

Download
memory/2736-141-0x0000000000000000-mapping.dmp

Download
memory/2736-148-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2736-149-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3576-136-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3576-137-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3576-135-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3576-133-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3576-132-0x0000000000000000-mapping.dmp

Download
memory/3576-147-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads