metasploit | d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

General

Target

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
Size

133KB
MD5

0c615d689ff9c3073a3dc6e5f2255cea
SHA1

232ca5b45717fffd53085b45ef5a139167875631
SHA256

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074
SHA512

847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1
SSDEEP

3072:ZHpylbWMebpJaVpG74ZjV6x1YpuieRYY64l:ZieDa3G+iYwieOY6o

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:

wmpkd32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpkd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpkd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkd32.exe = "C:\\Windows\\SysWOW64\\wmpkd32.exe:*:Enabled:WinMedia Server"	wmpkd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpkd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpkd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkd32.exe = "C:\\Windows\\SysWOW64\\wmpkd32.exe:*:Enabled:WinMedia Server"	wmpkd32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpkd32.exewmpkd32.exe

pid process

4804 wmpkd32.exe
4500 wmpkd32.exe

pid	process
4804	wmpkd32.exe
4500	wmpkd32.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4104-133-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4104-135-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4104-136-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4104-137-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4104-138-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4104-148-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4500-149-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4500-150-0x0000000000400000-0x0000000000451000-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:

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpkd32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wmpkd32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia Server = "C:\\Windows\\SysWOW64\\wmpkd32.exe"	wmpkd32.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:

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exewmpkd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkd32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkd32.exe

Drops file in System32 directory 4 IoCs

Processes:

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exewmpkd32.exe

description	ioc	process
File created	C:\Windows\SysWOW64\wmpkd32.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkd32.exe
File opened for modification	C:\Windows\SysWOW64\	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
File opened for modification	C:\Windows\SysWOW64\wmpkd32.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exewmpkd32.exe

description	pid	process	target process
PID 224 set thread context of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 4804 set thread context of 4500	4804	wmpkd32.exe	wmpkd32.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:

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exewmpkd32.exe

pid	process
4104	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
4104	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
4104	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
4104	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
4500	wmpkd32.exe
4500	wmpkd32.exe
4500	wmpkd32.exe
4500	wmpkd32.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exed97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exewmpkd32.exewmpkd32.exe

description	pid	process	target process
PID 224 wrote to memory of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 224 wrote to memory of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 224 wrote to memory of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 224 wrote to memory of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 224 wrote to memory of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 224 wrote to memory of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 224 wrote to memory of 4104	224	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
PID 4104 wrote to memory of 4804	4104	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	wmpkd32.exe
PID 4104 wrote to memory of 4804	4104	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	wmpkd32.exe
PID 4104 wrote to memory of 4804	4104	d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe	wmpkd32.exe
PID 4804 wrote to memory of 4500	4804	wmpkd32.exe	wmpkd32.exe
PID 4804 wrote to memory of 4500	4804	wmpkd32.exe	wmpkd32.exe
PID 4804 wrote to memory of 4500	4804	wmpkd32.exe	wmpkd32.exe
PID 4804 wrote to memory of 4500	4804	wmpkd32.exe	wmpkd32.exe
PID 4804 wrote to memory of 4500	4804	wmpkd32.exe	wmpkd32.exe
PID 4804 wrote to memory of 4500	4804	wmpkd32.exe	wmpkd32.exe
PID 4804 wrote to memory of 4500	4804	wmpkd32.exe	wmpkd32.exe
PID 4500 wrote to memory of 652	4500	wmpkd32.exe	Explorer.EXE
PID 4500 wrote to memory of 652	4500	wmpkd32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:652

C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
"C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:224

C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
"C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.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:4104

C:\Windows\SysWOW64\wmpkd32.exe
"C:\Windows\SysWOW64\wmpkd32.exe" C:\Users\Admin\AppData\Local\Temp\D97AA6~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\SysWOW64\wmpkd32.exe
"C:\Windows\SysWOW64\wmpkd32.exe" C:\Users\Admin\AppData\Local\Temp\D97AA6~1.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:4500

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

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\wmpkd32.exe

Filesize
133KB

MD5
0c615d689ff9c3073a3dc6e5f2255cea

SHA1
232ca5b45717fffd53085b45ef5a139167875631

SHA256
d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

SHA512
847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

Download Submit
C:\Windows\SysWOW64\wmpkd32.exe

Filesize
133KB

MD5
0c615d689ff9c3073a3dc6e5f2255cea

SHA1
232ca5b45717fffd53085b45ef5a139167875631

SHA256
d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

SHA512
847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

Download Submit
C:\Windows\SysWOW64\wmpkd32.exe

Filesize
133KB

MD5
0c615d689ff9c3073a3dc6e5f2255cea

SHA1
232ca5b45717fffd53085b45ef5a139167875631

SHA256
d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

SHA512
847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

Download Submit
memory/4104-136-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4104-137-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4104-138-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4104-133-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4104-135-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4104-132-0x0000000000000000-mapping.dmp

Download
memory/4104-148-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4500-142-0x0000000000000000-mapping.dmp

Download
memory/4500-149-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4500-150-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4804-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads