metasploit | 9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671

General

Target

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
Size

136KB
MD5

2e0080e607b406cb64f82d909a7f458e
SHA1

ce5ef756a358bb5faf5b92f1ebd6e7140ecc80ce
SHA256

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671
SHA512

ce78a57865fecbc791e790d2dfb9c2e61369ed1bfd568acafbcfaf7f85b50ee34329d6f8d6922aec2e02650300149551ec3a5ba090f34afda1685e5e1dd13c7b
SSDEEP

3072:waBTBRR+7lzPZdGbhfwFIWNc8HJJPz2/CNSvR9UiFDrK5Py2mFGCtwk:wukJPubhfwFPpJPqCNSHFKPy2VU

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:

wmpkc32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkc32.exe = "C:\\Windows\\SysWOW64\\wmpkc32.exe:*:Enabled:WinMedia Config"	wmpkc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkc32.exe = "C:\\Windows\\SysWOW64\\wmpkc32.exe:*:Enabled:WinMedia Config"	wmpkc32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpkc32.exewmpkc32.exe

pid process

1508 wmpkc32.exe
1800 wmpkc32.exe

pid	process
1508	wmpkc32.exe
1800	wmpkc32.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1948-55-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1948-57-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1948-58-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1948-62-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1948-63-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1948-64-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1948-65-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1948-82-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1800-83-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1800-84-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

wmpkc32.exe

pid process

1800 wmpkc32.exe

pid	process
1800	wmpkc32.exe

Loads dropped DLL 2 IoCs

Processes:

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe

pid	process
1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpkc32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wmpkc32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia Config = "C:\\Windows\\SysWOW64\\wmpkc32.exe"	wmpkc32.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:

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exewmpkc32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkc32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpkc32.exe

Drops file in System32 directory 4 IoCs

Processes:

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exewmpkc32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
File opened for modification	C:\Windows\SysWOW64\wmpkc32.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
File created	C:\Windows\SysWOW64\wmpkc32.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkc32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exewmpkc32.exe

description	pid	process	target process
PID 2000 set thread context of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 1508 set thread context of 1800	1508	wmpkc32.exe	wmpkc32.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:

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exewmpkc32.exe

pid	process
1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
1800	wmpkc32.exe
1800	wmpkc32.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exewmpkc32.exewmpkc32.exe

description	pid	process	target process
PID 2000 wrote to memory of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 2000 wrote to memory of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 2000 wrote to memory of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 2000 wrote to memory of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 2000 wrote to memory of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 2000 wrote to memory of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 2000 wrote to memory of 1948	2000	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
PID 1948 wrote to memory of 1508	1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	wmpkc32.exe
PID 1948 wrote to memory of 1508	1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	wmpkc32.exe
PID 1948 wrote to memory of 1508	1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	wmpkc32.exe
PID 1948 wrote to memory of 1508	1948	9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe	wmpkc32.exe
PID 1508 wrote to memory of 1800	1508	wmpkc32.exe	wmpkc32.exe
PID 1508 wrote to memory of 1800	1508	wmpkc32.exe	wmpkc32.exe
PID 1508 wrote to memory of 1800	1508	wmpkc32.exe	wmpkc32.exe
PID 1508 wrote to memory of 1800	1508	wmpkc32.exe	wmpkc32.exe
PID 1508 wrote to memory of 1800	1508	wmpkc32.exe	wmpkc32.exe
PID 1508 wrote to memory of 1800	1508	wmpkc32.exe	wmpkc32.exe
PID 1508 wrote to memory of 1800	1508	wmpkc32.exe	wmpkc32.exe
PID 1800 wrote to memory of 1224	1800	wmpkc32.exe	Explorer.EXE
PID 1800 wrote to memory of 1224	1800	wmpkc32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1224

C:\Users\Admin\AppData\Local\Temp\9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
"C:\Users\Admin\AppData\Local\Temp\9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2000

C:\Users\Admin\AppData\Local\Temp\9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe
"C:\Users\Admin\AppData\Local\Temp\9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671.exe"
3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\SysWOW64\wmpkc32.exe
"C:\Windows\SysWOW64\wmpkc32.exe" C:\Users\Admin\AppData\Local\Temp\9C999D~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\SysWOW64\wmpkc32.exe
"C:\Windows\SysWOW64\wmpkc32.exe" C:\Users\Admin\AppData\Local\Temp\9C999D~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:1800

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

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Downloads

C:\Windows\SysWOW64\wmpkc32.exe

Filesize
136KB

MD5
2e0080e607b406cb64f82d909a7f458e

SHA1
ce5ef756a358bb5faf5b92f1ebd6e7140ecc80ce

SHA256
9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671

SHA512
ce78a57865fecbc791e790d2dfb9c2e61369ed1bfd568acafbcfaf7f85b50ee34329d6f8d6922aec2e02650300149551ec3a5ba090f34afda1685e5e1dd13c7b

Download Submit
C:\Windows\SysWOW64\wmpkc32.exe

Filesize
136KB

MD5
2e0080e607b406cb64f82d909a7f458e

SHA1
ce5ef756a358bb5faf5b92f1ebd6e7140ecc80ce

SHA256
9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671

SHA512
ce78a57865fecbc791e790d2dfb9c2e61369ed1bfd568acafbcfaf7f85b50ee34329d6f8d6922aec2e02650300149551ec3a5ba090f34afda1685e5e1dd13c7b

Download Submit
C:\Windows\SysWOW64\wmpkc32.exe

Filesize
136KB

MD5
2e0080e607b406cb64f82d909a7f458e

SHA1
ce5ef756a358bb5faf5b92f1ebd6e7140ecc80ce

SHA256
9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671

SHA512
ce78a57865fecbc791e790d2dfb9c2e61369ed1bfd568acafbcfaf7f85b50ee34329d6f8d6922aec2e02650300149551ec3a5ba090f34afda1685e5e1dd13c7b

Download Submit
\Windows\SysWOW64\wmpkc32.exe

Filesize
136KB

MD5
2e0080e607b406cb64f82d909a7f458e

SHA1
ce5ef756a358bb5faf5b92f1ebd6e7140ecc80ce

SHA256
9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671

SHA512
ce78a57865fecbc791e790d2dfb9c2e61369ed1bfd568acafbcfaf7f85b50ee34329d6f8d6922aec2e02650300149551ec3a5ba090f34afda1685e5e1dd13c7b

Download Submit
\Windows\SysWOW64\wmpkc32.exe

Filesize
136KB

MD5
2e0080e607b406cb64f82d909a7f458e

SHA1
ce5ef756a358bb5faf5b92f1ebd6e7140ecc80ce

SHA256
9c999dddb53e73ad06c32679405917161cc56be6ceb1549b36d4108c8eea9671

SHA512
ce78a57865fecbc791e790d2dfb9c2e61369ed1bfd568acafbcfaf7f85b50ee34329d6f8d6922aec2e02650300149551ec3a5ba090f34afda1685e5e1dd13c7b

Download Submit
memory/1224-85-0x0000000002190000-0x00000000021AE000-memory.dmp

Filesize
120KB

Download
memory/1508-68-0x0000000000000000-mapping.dmp

Download
memory/1800-76-0x000000000044EA60-mapping.dmp

Download
memory/1800-83-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1800-84-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-59-0x000000000044EA60-mapping.dmp

Download
memory/1948-62-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-61-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/1948-58-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-64-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-54-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-57-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-82-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-63-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-65-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1948-55-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads