metasploit | 9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

General

Target

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
Size

253KB
MD5

ba6ae46526460efae73f8381a1b6ce7b
SHA1

d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78
SHA256

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4
SHA512

ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6
SSDEEP

3072:mbCGx5WySeR9vfG+pXBc0TZlpCGKGPJhD6QkkrR9vjKNL1lk+m0nbqKE:Epx5LSeR9vlpxxP3D6HkrTgLQ+m0nbq9

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:

wmpkb32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpkb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpkb32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkb32.exe = "C:\\Windows\\SysWOW64\\wmpkb32.exe:*:Enabled:Windows Recovery Service"	wmpkb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpkb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpkb32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkb32.exe = "C:\\Windows\\SysWOW64\\wmpkb32.exe:*:Enabled:Windows Recovery Service"	wmpkb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkb32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpkb32.exewmpkb32.exe

pid process

3260 wmpkb32.exe
64 wmpkb32.exe

pid	process
3260	wmpkb32.exe
64	wmpkb32.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1508-133-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1508-135-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1508-136-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1508-137-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1508-138-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1508-142-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/64-149-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/64-150-0x0000000000400000-0x0000000000451000-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:

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpkb32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wmpkb32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Recovery Service = "C:\\Windows\\SysWOW64\\wmpkb32.exe"	wmpkb32.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:

wmpkb32.exe9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkb32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkb32.exe

Drops file in System32 directory 4 IoCs

Processes:

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exewmpkb32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
File opened for modification	C:\Windows\SysWOW64\wmpkb32.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
File created	C:\Windows\SysWOW64\wmpkb32.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkb32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exewmpkb32.exe

description	pid	process	target process
PID 4980 set thread context of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 3260 set thread context of 64	3260	wmpkb32.exe	wmpkb32.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:

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exewmpkb32.exe

pid	process
1508	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
1508	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
1508	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
1508	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
64	wmpkb32.exe
64	wmpkb32.exe
64	wmpkb32.exe
64	wmpkb32.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exewmpkb32.exewmpkb32.exe

description	pid	process	target process
PID 4980 wrote to memory of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 4980 wrote to memory of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 4980 wrote to memory of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 4980 wrote to memory of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 4980 wrote to memory of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 4980 wrote to memory of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 4980 wrote to memory of 1508	4980	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
PID 1508 wrote to memory of 3260	1508	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	wmpkb32.exe
PID 1508 wrote to memory of 3260	1508	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	wmpkb32.exe
PID 1508 wrote to memory of 3260	1508	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	wmpkb32.exe
PID 3260 wrote to memory of 64	3260	wmpkb32.exe	wmpkb32.exe
PID 3260 wrote to memory of 64	3260	wmpkb32.exe	wmpkb32.exe
PID 3260 wrote to memory of 64	3260	wmpkb32.exe	wmpkb32.exe
PID 3260 wrote to memory of 64	3260	wmpkb32.exe	wmpkb32.exe
PID 3260 wrote to memory of 64	3260	wmpkb32.exe	wmpkb32.exe
PID 3260 wrote to memory of 64	3260	wmpkb32.exe	wmpkb32.exe
PID 3260 wrote to memory of 64	3260	wmpkb32.exe	wmpkb32.exe
PID 64 wrote to memory of 2416	64	wmpkb32.exe	Explorer.EXE
PID 64 wrote to memory of 2416	64	wmpkb32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2416

C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
"C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4980

C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
"C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.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:1508

C:\Windows\SysWOW64\wmpkb32.exe
"C:\Windows\SysWOW64\wmpkb32.exe" C:\Users\Admin\AppData\Local\Temp\9DE03C~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3260

C:\Windows\SysWOW64\wmpkb32.exe
"C:\Windows\SysWOW64\wmpkb32.exe" C:\Users\Admin\AppData\Local\Temp\9DE03C~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:64

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\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
C:\Windows\SysWOW64\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
C:\Windows\SysWOW64\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
memory/64-150-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/64-149-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/64-143-0x0000000000000000-mapping.dmp

Download
memory/1508-142-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1508-138-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1508-132-0x0000000000000000-mapping.dmp

Download
memory/1508-137-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1508-136-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1508-135-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1508-133-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3260-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads