metasploit | 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf

General

Target

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
Size

170KB
MD5

72d3478bd0c0f31ff0ca19bb096130a8
SHA1

d86416279916cba2716e90264c082f9da2240c36
SHA256

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf
SHA512

566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9
SSDEEP

3072:SyPevd8s7ZeqSBlnb/YlSFc6yum7c3tw+T++Elaqurlc14lYdrKe439pdp:SSs7klBpb/tRyuVdwhl/urC1GY4L9bp

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:

wmpkv32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpkv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpkv32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkv32.exe = "C:\\Windows\\SysWOW64\\wmpkv32.exe:*:Enabled:WinMedia Server"	wmpkv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpkv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpkv32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkv32.exe = "C:\\Windows\\SysWOW64\\wmpkv32.exe:*:Enabled:WinMedia Server"	wmpkv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkv32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpkv32.exewmpkv32.exe

pid process

2440 wmpkv32.exe
4760 wmpkv32.exe

pid	process
2440	wmpkv32.exe
4760	wmpkv32.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3772-133-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3772-135-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3772-136-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3772-137-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3772-138-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3772-148-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4760-149-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4760-150-0x0000000000400000-0x0000000000451000-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:

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpkv32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wmpkv32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia Server = "C:\\Windows\\SysWOW64\\wmpkv32.exe"	wmpkv32.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:

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkv32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkv32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe

Drops file in System32 directory 4 IoCs

Processes:

wmpkv32.exe66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	wmpkv32.exe
File opened for modification	C:\Windows\SysWOW64\	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
File opened for modification	C:\Windows\SysWOW64\wmpkv32.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
File created	C:\Windows\SysWOW64\wmpkv32.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exe

description	pid	process	target process
PID 4744 set thread context of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 2440 set thread context of 4760	2440	wmpkv32.exe	wmpkv32.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:

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exe

pid	process
3772	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
3772	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
3772	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
3772	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
4760	wmpkv32.exe
4760	wmpkv32.exe
4760	wmpkv32.exe
4760	wmpkv32.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exewmpkv32.exe

description	pid	process	target process
PID 4744 wrote to memory of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 4744 wrote to memory of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 4744 wrote to memory of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 4744 wrote to memory of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 4744 wrote to memory of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 4744 wrote to memory of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 4744 wrote to memory of 3772	4744	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
PID 3772 wrote to memory of 2440	3772	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	wmpkv32.exe
PID 3772 wrote to memory of 2440	3772	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	wmpkv32.exe
PID 3772 wrote to memory of 2440	3772	66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe	wmpkv32.exe
PID 2440 wrote to memory of 4760	2440	wmpkv32.exe	wmpkv32.exe
PID 2440 wrote to memory of 4760	2440	wmpkv32.exe	wmpkv32.exe
PID 2440 wrote to memory of 4760	2440	wmpkv32.exe	wmpkv32.exe
PID 2440 wrote to memory of 4760	2440	wmpkv32.exe	wmpkv32.exe
PID 2440 wrote to memory of 4760	2440	wmpkv32.exe	wmpkv32.exe
PID 2440 wrote to memory of 4760	2440	wmpkv32.exe	wmpkv32.exe
PID 2440 wrote to memory of 4760	2440	wmpkv32.exe	wmpkv32.exe
PID 4760 wrote to memory of 2940	4760	wmpkv32.exe	Explorer.EXE
PID 4760 wrote to memory of 2940	4760	wmpkv32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2940

C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
"C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4744

C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
"C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.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:3772

C:\Windows\SysWOW64\wmpkv32.exe
"C:\Windows\SysWOW64\wmpkv32.exe" C:\Users\Admin\AppData\Local\Temp\66E292~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2440

C:\Windows\SysWOW64\wmpkv32.exe
"C:\Windows\SysWOW64\wmpkv32.exe" C:\Users\Admin\AppData\Local\Temp\66E292~1.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:4760

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\wmpkv32.exe

Filesize
170KB

MD5
72d3478bd0c0f31ff0ca19bb096130a8

SHA1
d86416279916cba2716e90264c082f9da2240c36

SHA256
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf

SHA512
566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9

Download Submit
C:\Windows\SysWOW64\wmpkv32.exe

Filesize
170KB

MD5
72d3478bd0c0f31ff0ca19bb096130a8

SHA1
d86416279916cba2716e90264c082f9da2240c36

SHA256
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf

SHA512
566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9

Download Submit
C:\Windows\SysWOW64\wmpkv32.exe

Filesize
170KB

MD5
72d3478bd0c0f31ff0ca19bb096130a8

SHA1
d86416279916cba2716e90264c082f9da2240c36

SHA256
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf

SHA512
566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9

Download Submit
memory/2440-139-0x0000000000000000-mapping.dmp

Download
memory/3772-136-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3772-138-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3772-137-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3772-133-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3772-135-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3772-132-0x0000000000000000-mapping.dmp

Download
memory/3772-148-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4760-142-0x0000000000000000-mapping.dmp

Download
memory/4760-149-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4760-150-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads