metasploit | c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971

General

Target

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
Size

170KB
MD5

d5850e323653c6c6704df49be7df3fad
SHA1

611f51cbb7417c6f9f9769b8a6dea2639251321a
SHA256

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971
SHA512

e1ceefa5e60271415c5c47645ea69cb13bce810f3319a4478d1d862bcb2ca367b10e2a7a8315d5f925598d93bb902e6ae5b85e0c9ac3558f2a7e4a9666034830
SSDEEP

3072:Sz5iXfPGUYdmRaUS5+5lcXWiZX3AUPJS/JaGe5jaSshD9SyG9:SNQf+UYmRaUS5oOXwUPAJaGhphDxG9

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:

wmpnd32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpnd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpnd32.exe = "C:\\Windows\\SysWOW64\\wmpnd32.exe:*:Enabled:WinMedia Intelisense"	wmpnd32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpnd32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpnd32.exe = "C:\\Windows\\SysWOW64\\wmpnd32.exe:*:Enabled:WinMedia Intelisense"	wmpnd32.exe

Executes dropped EXE 2 IoCs

Processes:

wmpnd32.exewmpnd32.exe

pid process

556 wmpnd32.exe
1956 wmpnd32.exe

pid	process
556	wmpnd32.exe
1956	wmpnd32.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/460-56-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/460-58-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/460-59-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/460-64-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/460-65-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/460-66-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/460-67-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/460-85-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/1956-86-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/1956-87-0x0000000000400000-0x000000000044C000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

wmpnd32.exe

pid process

1956 wmpnd32.exe

pid	process
1956	wmpnd32.exe

Loads dropped DLL 2 IoCs

Processes:

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe

pid	process
460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmpnd32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia Intelisense = "C:\\Windows\\SysWOW64\\wmpnd32.exe"	wmpnd32.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wmpnd32.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:

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exewmpnd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpnd32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpnd32.exe

Drops file in System32 directory 4 IoCs

Processes:

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exewmpnd32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
File opened for modification	C:\Windows\SysWOW64\wmpnd32.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
File created	C:\Windows\SysWOW64\wmpnd32.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
File opened for modification	C:\Windows\SysWOW64\	wmpnd32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exewmpnd32.exe

description	pid	process	target process
PID 1488 set thread context of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 556 set thread context of 1956	556	wmpnd32.exe	wmpnd32.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:

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exewmpnd32.exe

pid	process
460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
1956	wmpnd32.exe
1956	wmpnd32.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exec321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exewmpnd32.exewmpnd32.exe

description	pid	process	target process
PID 1488 wrote to memory of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 1488 wrote to memory of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 1488 wrote to memory of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 1488 wrote to memory of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 1488 wrote to memory of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 1488 wrote to memory of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 1488 wrote to memory of 460	1488	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
PID 460 wrote to memory of 556	460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	wmpnd32.exe
PID 460 wrote to memory of 556	460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	wmpnd32.exe
PID 460 wrote to memory of 556	460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	wmpnd32.exe
PID 460 wrote to memory of 556	460	c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe	wmpnd32.exe
PID 556 wrote to memory of 1956	556	wmpnd32.exe	wmpnd32.exe
PID 556 wrote to memory of 1956	556	wmpnd32.exe	wmpnd32.exe
PID 556 wrote to memory of 1956	556	wmpnd32.exe	wmpnd32.exe
PID 556 wrote to memory of 1956	556	wmpnd32.exe	wmpnd32.exe
PID 556 wrote to memory of 1956	556	wmpnd32.exe	wmpnd32.exe
PID 556 wrote to memory of 1956	556	wmpnd32.exe	wmpnd32.exe
PID 556 wrote to memory of 1956	556	wmpnd32.exe	wmpnd32.exe
PID 1956 wrote to memory of 1264	1956	wmpnd32.exe	Explorer.EXE
PID 1956 wrote to memory of 1264	1956	wmpnd32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1264

C:\Users\Admin\AppData\Local\Temp\c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
"C:\Users\Admin\AppData\Local\Temp\c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1488

C:\Users\Admin\AppData\Local\Temp\c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe
"C:\Users\Admin\AppData\Local\Temp\c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971.exe"
3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:460

C:\Windows\SysWOW64\wmpnd32.exe
"C:\Windows\SysWOW64\wmpnd32.exe" C:\Users\Admin\AppData\Local\Temp\C321F1~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:556

C:\Windows\SysWOW64\wmpnd32.exe
"C:\Windows\SysWOW64\wmpnd32.exe" C:\Users\Admin\AppData\Local\Temp\C321F1~1.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:1956

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

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\wmpnd32.exe
Filesize
170KB

MD5
d5850e323653c6c6704df49be7df3fad

SHA1
611f51cbb7417c6f9f9769b8a6dea2639251321a

SHA256
c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971

SHA512
e1ceefa5e60271415c5c47645ea69cb13bce810f3319a4478d1d862bcb2ca367b10e2a7a8315d5f925598d93bb902e6ae5b85e0c9ac3558f2a7e4a9666034830

Download Submit
C:\Windows\SysWOW64\wmpnd32.exe
Filesize
170KB

MD5
d5850e323653c6c6704df49be7df3fad

SHA1
611f51cbb7417c6f9f9769b8a6dea2639251321a

SHA256
c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971

SHA512
e1ceefa5e60271415c5c47645ea69cb13bce810f3319a4478d1d862bcb2ca367b10e2a7a8315d5f925598d93bb902e6ae5b85e0c9ac3558f2a7e4a9666034830

Download Submit
C:\Windows\SysWOW64\wmpnd32.exe
Filesize
170KB

MD5
d5850e323653c6c6704df49be7df3fad

SHA1
611f51cbb7417c6f9f9769b8a6dea2639251321a

SHA256
c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971

SHA512
e1ceefa5e60271415c5c47645ea69cb13bce810f3319a4478d1d862bcb2ca367b10e2a7a8315d5f925598d93bb902e6ae5b85e0c9ac3558f2a7e4a9666034830

Download Submit
\Windows\SysWOW64\wmpnd32.exe
Filesize
170KB

MD5
d5850e323653c6c6704df49be7df3fad

SHA1
611f51cbb7417c6f9f9769b8a6dea2639251321a

SHA256
c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971

SHA512
e1ceefa5e60271415c5c47645ea69cb13bce810f3319a4478d1d862bcb2ca367b10e2a7a8315d5f925598d93bb902e6ae5b85e0c9ac3558f2a7e4a9666034830

Download Submit
\Windows\SysWOW64\wmpnd32.exe
Filesize
170KB

MD5
d5850e323653c6c6704df49be7df3fad

SHA1
611f51cbb7417c6f9f9769b8a6dea2639251321a

SHA256
c321f12d46e05106d16e84c43e7a5fb86cf3fc9669c578ded6d30bc5b50f9971

SHA512
e1ceefa5e60271415c5c47645ea69cb13bce810f3319a4478d1d862bcb2ca367b10e2a7a8315d5f925598d93bb902e6ae5b85e0c9ac3558f2a7e4a9666034830

Download Submit
memory/460-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-56-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-63-0x0000000075F01000-0x0000000075F03000-memory.dmp

Filesize
8KB

Download
memory/460-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-67-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-85-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-60-0x0000000000449DB0-mapping.dmp

Download
memory/460-55-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/460-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-70-0x0000000000000000-mapping.dmp

Download
memory/556-80-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1264-88-0x0000000002170000-0x000000000218E000-memory.dmp

Filesize
120KB

Download
memory/1488-54-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1488-62-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1956-78-0x0000000000449DB0-mapping.dmp

Download
memory/1956-86-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1956-87-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads