metasploit | a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a

General

Target

a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
Size

170KB
MD5

cf92bc2321dcc6520041541d5bac58c9
SHA1

1eee297748059e80b984fa63c6c8cc0838cf935c
SHA256

a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a
SHA512

f1af4da0fe1e03b8aa1505984b630718c98c0b4313aef7a7d82b491fd337cf1eaea68be68e682d2f1f306536dd18e28109066b77972d954761fca0c4e0d110d0
SSDEEP

3072:obJCH3IMgTIlXNyUSpoPlkb1H9r1o+2FVhX0Vf86zDML0Ts:o143mTwXNyUSpR1H9r1o+8SfjsL04

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpdv32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdv32.exe = "C:\\Windows\\SysWOW64\\wmpdv32.exe:*:Enabled:WinMedia Server Monitor"	wmpdv32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpdv32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdv32.exe = "C:\\Windows\\SysWOW64\\wmpdv32.exe:*:Enabled:WinMedia Server Monitor"	wmpdv32.exe

Executes dropped EXE 2 IoCs

pid	Process
1992	wmpdv32.exe
2004	wmpdv32.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/284-55-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/284-57-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/284-58-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/284-62-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/284-63-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/284-64-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/284-65-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2004-79-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/284-83-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2004-84-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2004-85-0x0000000000400000-0x000000000044C000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
2004	wmpdv32.exe

Loads dropped DLL 2 IoCs

pid	Process
284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wmpdv32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia Server Monitor = "C:\\Windows\\SysWOW64\\wmpdv32.exe"	wmpdv32.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpdv32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpdv32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	wmpdv32.exe
File opened for modification	C:\Windows\SysWOW64\	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
File opened for modification	C:\Windows\SysWOW64\wmpdv32.exe	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
File created	C:\Windows\SysWOW64\wmpdv32.exe	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1480 set thread context of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 1992 set thread context of 2004	1992	wmpdv32.exe	29

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

pid	Process
284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
2004	wmpdv32.exe
2004	wmpdv32.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 1480 wrote to memory of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 1480 wrote to memory of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 1480 wrote to memory of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 1480 wrote to memory of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 1480 wrote to memory of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 1480 wrote to memory of 284	1480	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	27
PID 284 wrote to memory of 1992	284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	28
PID 284 wrote to memory of 1992	284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	28
PID 284 wrote to memory of 1992	284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	28
PID 284 wrote to memory of 1992	284	a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe	28
PID 1992 wrote to memory of 2004	1992	wmpdv32.exe	29
PID 1992 wrote to memory of 2004	1992	wmpdv32.exe	29
PID 1992 wrote to memory of 2004	1992	wmpdv32.exe	29
PID 1992 wrote to memory of 2004	1992	wmpdv32.exe	29
PID 1992 wrote to memory of 2004	1992	wmpdv32.exe	29
PID 1992 wrote to memory of 2004	1992	wmpdv32.exe	29
PID 1992 wrote to memory of 2004	1992	wmpdv32.exe	29
PID 2004 wrote to memory of 1416	2004	wmpdv32.exe	14
PID 2004 wrote to memory of 1416	2004	wmpdv32.exe	14

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1416
- C:\Users\Admin\AppData\Local\Temp\a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
  "C:\Users\Admin\AppData\Local\Temp\a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1480
- - C:\Users\Admin\AppData\Local\Temp\a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe
    "C:\Users\Admin\AppData\Local\Temp\a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a.exe"
    3⤵
    - Loads dropped DLL
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:284
  - - C:\Windows\SysWOW64\wmpdv32.exe
      "C:\Windows\SysWOW64\wmpdv32.exe" C:\Users\Admin\AppData\Local\Temp\A8A44F~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1992
    - - C:\Windows\SysWOW64\wmpdv32.exe
        
        "C:\Windows\SysWOW64\wmpdv32.exe" C:\Users\Admin\AppData\Local\Temp\A8A44F~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:2004

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

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Downloads

C:\Windows\SysWOW64\wmpdv32.exe

Filesize
170KB

MD5
cf92bc2321dcc6520041541d5bac58c9

SHA1
1eee297748059e80b984fa63c6c8cc0838cf935c

SHA256
a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a

SHA512
f1af4da0fe1e03b8aa1505984b630718c98c0b4313aef7a7d82b491fd337cf1eaea68be68e682d2f1f306536dd18e28109066b77972d954761fca0c4e0d110d0

Download Submit
C:\Windows\SysWOW64\wmpdv32.exe

Filesize
170KB

MD5
cf92bc2321dcc6520041541d5bac58c9

SHA1
1eee297748059e80b984fa63c6c8cc0838cf935c

SHA256
a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a

SHA512
f1af4da0fe1e03b8aa1505984b630718c98c0b4313aef7a7d82b491fd337cf1eaea68be68e682d2f1f306536dd18e28109066b77972d954761fca0c4e0d110d0

Download Submit
C:\Windows\SysWOW64\wmpdv32.exe

Filesize
170KB

MD5
cf92bc2321dcc6520041541d5bac58c9

SHA1
1eee297748059e80b984fa63c6c8cc0838cf935c

SHA256
a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a

SHA512
f1af4da0fe1e03b8aa1505984b630718c98c0b4313aef7a7d82b491fd337cf1eaea68be68e682d2f1f306536dd18e28109066b77972d954761fca0c4e0d110d0

Download Submit
\Windows\SysWOW64\wmpdv32.exe

Filesize
170KB

MD5
cf92bc2321dcc6520041541d5bac58c9

SHA1
1eee297748059e80b984fa63c6c8cc0838cf935c

SHA256
a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a

SHA512
f1af4da0fe1e03b8aa1505984b630718c98c0b4313aef7a7d82b491fd337cf1eaea68be68e682d2f1f306536dd18e28109066b77972d954761fca0c4e0d110d0

Download Submit
\Windows\SysWOW64\wmpdv32.exe

Filesize
170KB

MD5
cf92bc2321dcc6520041541d5bac58c9

SHA1
1eee297748059e80b984fa63c6c8cc0838cf935c

SHA256
a8a44f08f878b225cc18f315ced197c25566000dfe8c1496479811ff20ec577a

SHA512
f1af4da0fe1e03b8aa1505984b630718c98c0b4313aef7a7d82b491fd337cf1eaea68be68e682d2f1f306536dd18e28109066b77972d954761fca0c4e0d110d0

Download Submit
memory/284-61-0x0000000076201000-0x0000000076203000-memory.dmp

Filesize
8KB

Download
memory/284-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-54-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-83-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/284-55-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1416-86-0x00000000021C0000-0x00000000021DE000-memory.dmp

Filesize
120KB

Download
memory/2004-79-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2004-84-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2004-85-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads