metasploit | befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324

General

Target

befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
Size

196KB
MD5

b797d2ac0430cba053425712b1cb0da6
SHA1

159e9e8ef4fb6356045e4df3b3c87b5a7652798c
SHA256

befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324
SHA512

4b14532b07798c9049652b7b4cb03c19783dec421c06fb76ce69d23009b7edd6ec1a2874cb2811210a3d0a199431337bb9f10dd23ff1a46a62d9c23d764a9eee
SSDEEP

3072:ew1Hhb4wftEoTlLPt1GiIFB4k9HDQogKUtz1/cmWZb/Kl:RBiAP9Pt1GTFyceKM1/cPZWl

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	wmpdf32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdf32.exe = "C:\\Windows\\SysWOW64\\wmpdf32.exe:*:Enabled:Windows Database Server"	wmpdf32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpdf32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpdf32.exe = "C:\\Windows\\SysWOW64\\wmpdf32.exe:*:Enabled:Windows Database Server"	wmpdf32.exe

Executes dropped EXE 2 IoCs

pid	Process
1336	wmpdf32.exe
1952	wmpdf32.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/912-55-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/912-57-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/912-58-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/912-62-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/912-63-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/912-64-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/912-65-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1952-82-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/912-83-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral1/memory/1952-84-0x0000000000400000-0x0000000000455000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
1952	wmpdf32.exe

Loads dropped DLL 2 IoCs

pid	Process
912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.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	wmpdf32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Database Server = "C:\\Windows\\SysWOW64\\wmpdf32.exe"	wmpdf32.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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpdf32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpdf32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
File opened for modification	C:\Windows\SysWOW64\wmpdf32.exe	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
File created	C:\Windows\SysWOW64\wmpdf32.exe	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
File opened for modification	C:\Windows\SysWOW64\	wmpdf32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 1336 set thread context of 1952	1336	wmpdf32.exe	30

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
912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
1952	wmpdf32.exe
1952	wmpdf32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 1632 wrote to memory of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 1632 wrote to memory of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 1632 wrote to memory of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 1632 wrote to memory of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 1632 wrote to memory of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 1632 wrote to memory of 912	1632	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	28
PID 912 wrote to memory of 1336	912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	29
PID 912 wrote to memory of 1336	912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	29
PID 912 wrote to memory of 1336	912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	29
PID 912 wrote to memory of 1336	912	befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe	29
PID 1336 wrote to memory of 1952	1336	wmpdf32.exe	30
PID 1336 wrote to memory of 1952	1336	wmpdf32.exe	30
PID 1336 wrote to memory of 1952	1336	wmpdf32.exe	30
PID 1336 wrote to memory of 1952	1336	wmpdf32.exe	30
PID 1336 wrote to memory of 1952	1336	wmpdf32.exe	30
PID 1336 wrote to memory of 1952	1336	wmpdf32.exe	30
PID 1336 wrote to memory of 1952	1336	wmpdf32.exe	30

C:\Users\Admin\AppData\Local\Temp\befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
"C:\Users\Admin\AppData\Local\Temp\befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Users\Admin\AppData\Local\Temp\befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe
  "C:\Users\Admin\AppData\Local\Temp\befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324.exe"
  2⤵
  - Loads dropped DLL
  - Maps connected drives based on registry
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\SysWOW64\wmpdf32.exe
    "C:\Windows\SysWOW64\wmpdf32.exe" C:\Users\Admin\AppData\Local\Temp\BEFE9D~1.EXE
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1336
  - - C:\Windows\SysWOW64\wmpdf32.exe
      "C:\Windows\SysWOW64\wmpdf32.exe" C:\Users\Admin\AppData\Local\Temp\BEFE9D~1.EXE
      4⤵
      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
      PID:1952

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\wmpdf32.exe

Filesize
196KB

MD5
b797d2ac0430cba053425712b1cb0da6

SHA1
159e9e8ef4fb6356045e4df3b3c87b5a7652798c

SHA256
befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324

SHA512
4b14532b07798c9049652b7b4cb03c19783dec421c06fb76ce69d23009b7edd6ec1a2874cb2811210a3d0a199431337bb9f10dd23ff1a46a62d9c23d764a9eee

Download Submit
C:\Windows\SysWOW64\wmpdf32.exe

Filesize
196KB

MD5
b797d2ac0430cba053425712b1cb0da6

SHA1
159e9e8ef4fb6356045e4df3b3c87b5a7652798c

SHA256
befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324

SHA512
4b14532b07798c9049652b7b4cb03c19783dec421c06fb76ce69d23009b7edd6ec1a2874cb2811210a3d0a199431337bb9f10dd23ff1a46a62d9c23d764a9eee

Download Submit
C:\Windows\SysWOW64\wmpdf32.exe

Filesize
196KB

MD5
b797d2ac0430cba053425712b1cb0da6

SHA1
159e9e8ef4fb6356045e4df3b3c87b5a7652798c

SHA256
befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324

SHA512
4b14532b07798c9049652b7b4cb03c19783dec421c06fb76ce69d23009b7edd6ec1a2874cb2811210a3d0a199431337bb9f10dd23ff1a46a62d9c23d764a9eee

Download Submit
\Windows\SysWOW64\wmpdf32.exe

Filesize
196KB

MD5
b797d2ac0430cba053425712b1cb0da6

SHA1
159e9e8ef4fb6356045e4df3b3c87b5a7652798c

SHA256
befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324

SHA512
4b14532b07798c9049652b7b4cb03c19783dec421c06fb76ce69d23009b7edd6ec1a2874cb2811210a3d0a199431337bb9f10dd23ff1a46a62d9c23d764a9eee

Download Submit
\Windows\SysWOW64\wmpdf32.exe

Filesize
196KB

MD5
b797d2ac0430cba053425712b1cb0da6

SHA1
159e9e8ef4fb6356045e4df3b3c87b5a7652798c

SHA256
befe9d7a09bb48dac73b8122892a92ecc8dd118f06ee29992ca63365ccedf324

SHA512
4b14532b07798c9049652b7b4cb03c19783dec421c06fb76ce69d23009b7edd6ec1a2874cb2811210a3d0a199431337bb9f10dd23ff1a46a62d9c23d764a9eee

Download Submit
memory/912-61-0x0000000076091000-0x0000000076093000-memory.dmp

Filesize
8KB

Download
memory/912-63-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-64-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-65-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-54-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-83-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-62-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-58-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-57-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/912-55-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1952-82-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1952-84-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads